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HomeMy WebLinkAboutItem 6.1 Dublin Rch No Annex (2)APPENDIX A
LIST OF OBSERVED PLANT AND ANIMAL SPECIES
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Appendix A. List of plant and wildlife species observed on April 28, 2009 within the 30 acre
Project Area of Dublin Ranch North.
Scientific Name
Common Name
Plants
Amsinckia menziesii var. intermedia
common fiddleneck
A vena barbata
slender wild oat
A vena fatua
wild oat
Bellardia trixago
Mediterranean lineseed
Brassica nigra
black mustard
Bromus diandrus
ripgut brorne
Bromus hordeaceus
soft chess
Bromus madritensis ssp. madritensis
foxtail chess
Castilleja exserta
owl's clover
Calystegia subacaulis
stemless morning glory
Convolvulus arvensis
bindweed
Cynara cardunculus
artichoke thistle
Erodium boLtys
stork's bill filaree
Erodium cicutarium
redstern filaree
Eschscholzia califomica
California poppy
Hirschfeldia incana
hoary mustard
Hordeum mufinum ssp. leporinum
foxtail barleL
Hordeum marinum ssp. gussoheanum
Mediterranean barley
Lolium multiflorum
Italian rye2rass
Lupinus sp.
lupine
Marah fabaceus
wild cucumber
Medica2o polymorpha
burclover
Rumex crispu
curly dock
Sanicula bipinnatifida
snakeroot
Silybum madanum
milk thistle
Sonchus as per
_Lrickly sow thistle
Scientific Name
Common Name
Taraxacum officinale
dandelion
Triteleia laxa
Ithuriel's spear
Vicia sativa
spring vetch
Vulpia myuros
foxtail fescue
Wildlife
Spermophilus beecheyi
California Ground Squirrel
Cathartes aura
Turkey Vulture
Circus cyaneus
Northern Harrier
censi .
Buteojamai s
Red-tailed Hawk
Charadrius vociferus
Killdeer
Corvus corax
Common Raven
Petrochelidon pyrrhonota
Cliff Swallow
Ammodramus savannarum
Grasshopper Sparrow
Agelaius phoeniceus
Red-Winged Blackbird
Sturnella neglecta
Western Me6dowlark
Coenonympha tullia
common ringlet (butterfly)
a yyo
POTENTIAL FOR SPECIAL STATUS PLANT AND WILDLIFE SPECIES TO OCCUR IN THE
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APPENDIX £
REPRESENTATIVE PROJECT AREA PHOTOGRAPHS
a�+5 °F �Iyo
Top: Non-native annual grassland, which is the only
plant community present in the Project Area.
Bottom: Topographical feature on west side of the
Project Area.
Photographs taken April 28, 2009.
ru
ENVIRONMEN7AL CONSUL7AN7S
HHQ
Tf LIy�
Appendix C:
Cultural Resources Study
J�F tLAHO
boLman& ASSOCIATES
Auchaeol.ogical. Consultants
"SINCE THE BEGINNING"
CAL
CALIFORNIA 94110 SA 4 S /SSO FRANCISCO, 8
Jim Tong
Charter Properties
4690 Chabot Drive #100 RECEIVED
Pleasanton, CA 94588
JUN 1 ? 2009
May 8, 2009 DUBLIN PLANNING
Dear Mr. Tong:
RE: CULTURAL RESOURCES STUDY OF THE DUBLIN RANCH NORTH PROPERTY,
ALAMEDA COUNTY, CALIFORNIA
At your request I have completed an archaeological field inspection of the above
referenced project area located near the end of Fallon Road just south of the Alameda/Contra
Costa County border in Alameda County, California. No evidence of historic and /or prehistoric
archaeological resources was found. This report contains a summary of information gained from
an archaeological literature review and a field inspection.
PROJECT DESCRIPTION
The proposed project area consists of an approximately 30 acre parcel of land located just
east of the Silvera Ranch complex in northern Alameda County. Located on the Livermore
U.S.G.S. map, the borders of the property are defined by fence lines: the property itself consists
of four lots which drain primarily to the west into a dry Swale; at the time of my field visit the
property was covered by a sparse layer of native and imported grasses, lacking any exposed
bedrock and/or tree stands. The nearest historic ranch improvements are to be found on the
southern edge of the property at the former end of Fallon Road_ In addition, an unused paved
road ending in a cul -de -sac reaches the edge of the property from the Silvera Ranch property, part
of an earlier housing subdivision which has not been completed.
ARCHIVAL RESEARCH
An archaeological literature review was conducted by this author in person at the
Northwest Information Center (KWIC file #08 -1339) on May 4`h, 2009 to obtain information
about recorded historic and/or prehistoric sites inside or near the project area and to obtain any
formal archaeological studies of the project area.
There are no historic and/or prehistoric sites recorded inside the project area. The nearest
ayq t u�l�
recorded historic resources are found just north of the project area near the county line, and at the
Silvera Ranch itself. These sites were recorded by Holman & Associates either in 1988 as part of
the East Dublin General Plan Amendment, or in 1998 as part of the North Livermore Master
Plan/Specific Plan done for the County of Alameda.
The maps included in the 1988 East Dublin study or in the Master Plan/Specific Plan
Livermore study suggest that the property had been surveyed completely in the past. In a
conversation with Mr. Randy Wiberg, he clarified that the current project area was given a
general inspection in 1988; he also confirmed that the lands surrounding the current study area (a
portion of the larger Livermore study area) was only inspected in 1998 to verify the location of
the scattered historic ranch improvements found in the general area; these resources were
recorded. The Livermore report ranked the land inside that study area in terms of their potential
archaeological sensitivity. This portion of the current study area was thought to have a generally
low archaeological sensitivity and thus was not visually re- inspected.
DESCRIPTION OF FIELD INSPECTION
A visual inspection of the project area was conducted by this author on April 30, 2009
with the aid of Mr. Jim Templeton of MacKay & Somps. The upper slopes of the property were
traversed in 150 foot transects to visually inspect the ground surface; a more intense visual
inspection was conducted on the bottom of the slopes which drains to the south.
At the time of my field visit, the entire area was covered by a light covering of native and
imported grasses; other than the grass covering, the property is devoid of larger brush or trees,
and there are no visible rock outcrops which might have been used for seed grinding stations, as
repositories of rock art or for quarrying activities.
SUMMARY OF FINDINGS/RECOMMENDATIONS
No evidence of historic and/or prehistoric archaeological resources was found during the
field inspection. It is the opinion of this author that future development of this parcel (requiring
earthmoving for building pads and roads) will have no effect on cultural resources: this property
was utilized at best as a source of seed collection in the spring and probably for hunting, but
otherwise would not have supported village or camp sites or special use areas associated with
rock outcrops or specific food -sources other than grass seeds. This report does not recommend
mechanical subsurface presence/absence testing for potentially buried archaeological deposits,
and does not recommend archaeological monitoring of future earthmoving activities.
Sincerely,
,A—
Miley Paul Holman
Holman & Associates
2
Wallace, Roberts & Todd
1988 Eastern Dublin General Plan Amendment and Specific Plan
Studies. Environmental Setting: Work Task #9
Wiberg, Randy, Randall Dean and Miley Holman
1998 A CULTURAL RESOURCES STUDY FOR THE NORTH
LIVERMORE MASTER PLAN /SPECIFIC PLAN
ENVIRONMENTAL IMPACT REPORT, ALAMEDA COUNTY,
CALIFORNIA. On file, Northwest Information Center file no. S-
20335
Wiberg, Randy
2009 Personal communication regarding the level of archaeological field
inspection of the North Livermore Master Plan/Specific plan area
and earlier 1988 WRT study.
3
LIVERMORE U.S.G.S. MAP
IOU L
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35a
Appendix D:
Preliminary Geologic and Geotechnical Report
BERLOGAR
GEOTECHNICAL
CONSULTANTS
SOIL ENGINEERS
ENGINEERING GEOLOGISTS
FEASIBILITY -LEVEL GEOTECHNICAL INVESTIGATION
NORTHWEST PORTION OF REDGEWICK PROPERTY
FALLON ROAD
DUBLIN, CALIFORNIA
FOR
MS JENNIFER LIN
do MR. JIM TONG, CHARTER PROPERTIES
May 18, 2009
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May 18, 2009
Job No. 1394.131D
BERLOGA�
GEOTECNNtCAL
Ms Jennifer Lin
c/o Mr. Jim Tong
Charter Properties
4690 Chabot Drive, Suite 100
Pleasanton, California 94588
Subject: Report
Feasibility -Level Geotechnical. Investigation
Northwest Portion of Redgewick Property
Fallon Road
Dublin, California
Dear Ms Lin:
INTRODUCTION
This report presents the results of our feasibility -level geotechnical investigation of the northwest
portion of the Redgewick property, located off Fallon Road in Dublin, California. The site is shown
in relationship with the City of Dublin on the Vicinity Map, Plate 1.
Based on the Vesting Tentative Map (dated May 2009) prepared by MacKay & Somps, we
understand that site development is planned to include 4 residential building pads on the west flank
of the hillside and a single roadway that will connect .to the Silvera Ranch development in the
southwest corner of the site. Site grading is planned to include 3 cuts across spur ridges up to about
32 feet deep and placing fill in 2 swales up to about 42 feet thick. Cut slopes are planned at
gradients of not steeper than 2'/2 Horizontal to 1 Vertical (2 %Z H:1V). The northern fill slope is
planned at a gradient of not steeper than 3H: 1V and the southern fill slope is planned at a gradient of
not steeper than 2' /2H:l V.
PURPOSE AND SCOPE OF SERVICES
The purpose of this investigation was to evaluate the feasibility of the proposed residential
development from the standpoint of engineering geology and geotechnical engineering, and to
present preliminary geotechnical recommendations. Our investigation services consisted of the
following tasks:
I . Review of published geologic maps and literature covering the site and vicinity.
2. Review of available stereo - paired aerial photographs covering the site and vicinity.
3. Site geologic reconnaissance.
4. Excavation and logging of twelve test pits (TP -1 through TP -12).
SOIL ENGINEERS • ENGINEERING GEOLOGISTS • 5587 SUNOL BOULEVARD • PLEASANTON, CA 94566 • (925) 484 -0220 • FAX: (925) 846 -9645
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Job No. 1394.131D
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5. Analysis of geologic and geotechnical engineering findings from the above four tasks, and
development of preliminary recommendations for site preparation and grading, landslide
mitigation, expansive soil, foundations, retaining walls, pavements, and seismic
considerations.
6. Preparation of this report presenting our findings, conclusions, and recommendations.
FINDINGS
SURFACE CONDITIONS
The site is an irregular - shaped area measuring approximately 1,600 feet long by 1,000 feet wide in
plan view, as shown in the Preliminary Geologic Map, Plate 3. With the exception of the on -going
residential construction on the Silvera Ranch property near the southwest corner of the site, the site is
bounded mostly by undeveloped ranch land.
S ite topography ranges from approximately 640 feet above mean sea level in the northwest comer of
the site up to 880 feet along the east site boundary. The site is dominated by a west- facing ridge
flank. This ridge flank rises to a north - trending ridge crest, which dominates the eastern boundary of
the site. The ridge flank is gently undulating, with about four small ridge spurs and intervening
swales gently plunging to the west from the ridge crest. Generally, the steepest slopes at the site
have a gradient of about 2H:1 V. We did not observe evidence of free surface water or springs, aside
from a potential for water to accumulate in swales. There are no visible man-made features on the
site aside from barbed -wire fencing near the perimeter and a few vehicle tracks.
REGIONAL GEOLOGY
The site is situated within the Coast Ranges geomorphic province of California, which is
characterized by northwest trending, folded and faulted mountain chains. In this part of the province,
sedimentary deposits of the Tassajara Formation, which is Pliocene to Pleistocene in age, underlie
the area (Dibblee, 1980; Crane, 1988). The region has been folded and faulted .during the past 3
million years due to right- lateral oblique motions between the Pacific and North American tectonic
plates.
EARTH MATERIALS
During the investigation, we encountered three types of earth material, described from youngest to
oldest:
LANDSLIDE DEPOSITS
Based on surface reconnaissance and interpretation of aerial photographs, our Preliminary Geologic
Map shows four small, recent earth -flow landslide deposits in the northern portion of the site, three
within a swale and the fourth along a ridge spur. In addition, this map shows four possible older
landslide deposits within swales at the site. Another suspected landslide is interpreted initiating on
the adjacent property to the north and crossing into the site. Three of the four older features
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Job No. 1394.131D
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correspond to - landslides that Nilsen (1975) showed on his regional photo interpretation map. Based
on our interpretation of aerial photographs, we slightly modified Nilsen's three features and added a
fourth possible older landslide feature. During our limited subsurface exploration with test pits, we
encountered no evidence of the existence of these features. These findings are preliminary, and
future geologic investigation, as project - planning advances will be needed to confirm or refute the
existence of these possible landslide deposits. The alternative explanation is these swales contain
particularly thick deposits of colluvial soil. Landslide deposits are marked with the symbol Qls on
,i the Preliminary Geologic Map.
COLLUVIUM
Colluvium is soil derived from in -place weathering of the underlying bedrock that then moves
downslope by gravity (creeping, washing, and tumbling). Colluvium mantles all slopes to some
degree and collects in particularly thick deposits within the bottoms of swales and at the bases of
slopes. Colluvium was found to range from about 2'/2 feet thick near the ridge crest (Test Pits TP -1)
and tops of ridge spurs (Test Pits TP -6 and TP -12) to as much as 13 feet thick in the bottom of one
swale (Test Pit TP -11). The colluvium consists of dark gray - brown, very stiff to hard clay with some
fine sand. This soil appears to have moderate to high plasticity and expansion potential. Colluvium
is shown using the symbol Qc on the Preliminary Geologic Map only where estimated to be thicker
than about 5 feet.
BEDROCK
Dibblee (1980) and Crane (1988) mapped bedrock beneath the site as belonging to the Plio-
Pleistocene Tassajara Formation. This unit consists of grayish to yellowish brown, silty, fine- grained
sandstone and silty claystone. These materials typically have a friable, barely rock -like, nearly soil -
like consistency. In a few places we could observe crude bedding that strikes northwest and dips
between 16° and 45' to the southwest. These bedding attitudes agree with regional attitudes mapped
by Dibblee (1980). The Tassajara Formation is indicated using the symbol QTt on the Preliminary
Geologic Map.
FAULTING
The site is not located within a State of California designated Earthquake Fault Zone for active
faults. (Davis, 1982). According to the State of California, a fault is considered active if it has
demonstrated Holocene activity (within the past 11,000 years). We did not encounter evidence of
active fault traces crossing, passing near, or trending toward the site.
GROUNDWATER
We did not encountered shallow groundwater in test pits during our field investigation. We would
anticipate that shallow groundwater could be present during wet times of the year within swales at
the ground surface or a few feet deep. Groundwater levels are expected to fluctuate seasonally.
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CONCLUSIONS AND RECOMMENDATIONS
GENERAL
From a geologic and geotechnical standpoint, the proposed development appears to be feasible
provided the conclusions and recommendations contained in this report are followed in the planning
phase of the project. The conclusions and recommendations that follow in this report are preliminary
only. A detailed, design -level geotechnical investigation is required as project planning advances,
and the recommendations from such an investigation should be incorporated into final proj ect design
and construction.
The primary geotechnical issue affecting the proposed development is presence of expansive soil and
claystone at the site, which are susceptible to significant volume changes (swell and shrinkage) when .
subjected to changes in moisture content. Other geotechnical concerns addressed in this report
include the following: potential settlement of future fill, stability of future cut and fill slopes, and
possible landslide deposits or thick colluvium within the proposed development.
EXPANSION POTENTIAL
The expansion potential of materials at the site probably ranges from moderately to highly expansive.
This is based on visual /tactile evidence from the samples from our test pits at the site and our
laboratory tests on samples of similar materials from the neighboring Dublin Ranch projects. The
degree of expansion of the on -site materials is chiefly a function of the following factors: the type of
soil and bedrock materials and clay composition, in -place moisture contents of the materials, in -place
density of the materials, and overburden pressures or surcharge loads acting on the materials_ The
two main expansive material types at the site are (1) the near - surface colluvium, residual soil, and
possible_ landslide debris, and (2) beds of claystone and silty claystone within Tassajara Formation
bedrock.
The near - surface soils are likely highly expansive when subject to changes in moisture content. The
siltstone and claystone beds are likely moderately to highly expansive, with variations between
particular beds of claystone.
Based on our experience with this geologic formation, we believe potential total swelling of future
fill composed of these materials can be limited to an acceptable range provided future fill is placed
and compacted in accordance with detailed engineering criteria to be developed later. A more-
detailed picture of the potential ranges of total swelling of these materials and required compaction
criteria to maintain swell within a narrow, predictable range will need to be developed with
laboratory testing and analysis during a desigrrlevel geotechnical investigation for the project.
SETTLEMENT
Based on our laboratory tests on samples of soil and Tassajara Formation from the neighboring
Dublin Ranch project, future fills composed of native materials at the site will undergo settlement
during placement and for a duration after mass grading. We believe potential total settlements can
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Job No. 1394.131D
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' be limited to an acceptable range provided future fill is placed and compacted in accordance with
;1 detailed engineering criteria to be provided later. A more- detailed picture of the potential ranges of
total settlement of these materials and required compaction criteria to maintain swell within a
jnarrow;. predictable range will need to be developed with laboratory testing and analysis during a
design -level geotechnical investigation for the project.
Based on the current grading plan, two of the swales are planned to receive engineered fill. If future
investigation in the swale areas shows evidence of landslide deposits, or if the colluvium is
determined to not provide a stable base for engineered fills, then these deposits would need to be
removed to stable bedrock and replaced with engineered fill. Settlement of this replacement fill
would need to be estimated and incorporated in project planning. If, instead of landsliding, these
swale deposits show a colluvial origin, then their removal may be more limited. This in -place soil is
very stiff to hard, and could have low compressibility potential. Colluvial deposits left in place are
anticipated to undergo limited settlement during fill placement and for a duration following mass
grading.
LANDSLIDE MITIGATION
Recent landslide deposits were identified on the north side of the site during our fieldwork, as shown
on the Preliminary Geologic Map. These deposits are situated such that they will have no effect on
the currently proposed development. Three of the possible older landslide deposits identified are
located in areas that could impact development, as shown on the Preliminary Geologic Map. Of
these, the portion of the landslide deposits that are determined to impact improvements during future
design -level investigation will need to be overexcavated down to competent bedrock and replaced
with engineered fill. Remedial recommendations, if needed, can be presented after grading plans are
prepared and detailed geotechnical investigation has been performed.
SITE PREPARATION AND GRADING
We anticipate that recommendations for site preparation and grading will be typical for hillside
residential projects in the vicinity. Detailed recommendations for clearing and stripping, removal of
surficial soil from fill areas, scarification of exposed surfaces in fill areas, selection and evaluation of
fill material, relative compaction and moisture conditioning off 11 materials, and keying, benching
and subdrainage of fill all should be provided with a detailed, design -level geotechnical
investigation.
SHRINKAGE /SWELL FACTOR
Based on the compaction test results from samples of similar materials from the neighboring Dublin
Ranch development, we anticipate a swell factor of approximately 5 to 10 percent in the earthwork
quantities. A site - specific estimate of shrinkage or swell can be provided with a detailed, design-
level investigation.
CUT SLOPES
Cut slopes at the site are currently planned at gradients of not steeper than 2' /2H:l V. We judge, that
cut slopes in sandstone and /or sandy siltstone bedrock can generally be constructed at gradients no
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steeper than 21/2 H:1 V. Cut slopes exposing clayey siltstone and/or claystone may not be stable at
the 2 %zH:IV or steeper gradient and may require overexcavation of the unsuitable materials and
construction of a buttress fill slope. Cut slopes less than 10 feet in (finished slope) height should be .
no steeper than 214:1 V.
The stability of cut slopes depends on (1) the orientation of the cut slope with respect to bedrock
structure, (2) the strength properties of materials exposed in the cut slope, and (3) other adverse
conditions (e.g., ground water). We anticipate that cut slopes could be potentially unstable where (1)
the cut slope exposes clayey siltstone and/or claystone bedrock, 2) the cut slope exposes thick
colluvium or (3) where bedrock structure (e.g., dip or joint orientation) is adverse in relation to cut
slope geometry. We recommend an engineering geologist inspect all cut slope exposures for
evidence of potential instability.
In general, areas where natural slope gradients are steeper than about 5H:1 V, colluvial deposits are
considered susceptible to downslope creep and potential slope instability. Cut slopes for the project
are planned at 21/2H:1 V, therefore colluvium exposures will warrant remedial treatment, consisting
of some combination of removing colluvium at the crest of the cut slope, subdrainage, and placement
of an engineered buttress fill. The stability of cut slopes in bedrock largely depends on the
orientation of the cut slope with respect to bedrock structure. Bedrock dips at the site were found to
vary from about 16° to 450 to the southwest. Where adverse bedrock structure or other zones of
geologic weakness are anticipated or encountered in cut slopes, we anticipate that remedial measures
such as flattening the slope, or construction of a slope buttress could be needed. An engineering
geologist should evaluate specific remedial alternatives as cut slope conditions are exposed during
grading.
Based on the current grading plan, we understand that benches with concrete lined V- ditches are not
planned for the 2' /zH: l V cut slopes. From a slope stability standpoint, the benches and V- ditches can
generally be omitted provided that additional erosion control measures are included on the portion of
the slope that is 20 feet below the top of slope. Subdrainage might be required at toes of the three
cut slopes. Following grading, cut slopes should be planted with deep - rooted, fast- growing
vegetation before the first winter to resist erosion.
FILL SLOPES
The stability of planned fill slopes depends on proper keyways, benching, subdrainage, fill
compaction, and slope gradients. The current grading plan shows two fill slopes planned at the site.
The northern fill slope will be constructed in a swale at a gradient of 314:1 V. We judge this to bean
appropriate slope gradient for the materials anticipated to be used'for fill at the site. The southern fill
slope is also being placed in a swale, but is planned at a gradient of 21/2H:1 V. Constructing the fill
slope at a 2 %H: IV gradient can be achieved provided the outer 50 feet of the slope is constructed of
select sandstone bedrock cut derived materials. If there is not enough sandstone materials generated
from cut slopes at the site, geogrid reinforcement may be needed for 2% H:1 V fill slope construction:
Fill slopes less than about 10 feet in vertical height should be constructed at slope gradients no
steeper than 2H:1 V. Ifresidual soil, colluvium, or landslide debris will be used in fill slope material,
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Job No. 1394.131D
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they should be properly blended with granular bedrock materials; a blending ratio of 1 part soil to 3
parts (minimum) granular bedrock should be maintained for fill slopes.
Based on the current grading plan, we understand that benches with concrete lined V- ditches are not
planned for the southern fill slope that is planned at a gradient of 2 %H: 1V. From a slope stability
standpoint, the benches and V- ditches can generally be omitted provided that additional erosion
control measures are included on the portion of the slope that is 20 feet below the top of slope. Fill
slopes should be constructed in accordance with the recommendations shown on Plate 4.
EROSION PROTECTION
All cut slopes and fill slopes should be seeded or planted with deep- rooted, fast - growing vegetation
before the first winter to reduce erosion. Consideration should be given to some irrigation of slopes;
specific details regarding irrigation systems, locations, and discharge should be reviewed by BGC
prior to their approval. As discussed above under the sections for Cut Slopes and Fill Slopes,
additional erosion control measures may be needed for the 2 `/z H:1 V slopes if benches and V- ditches
are not planned.
SUBDRAINAGE
Seepage could be encoun tered at the bottoms of slopes, swales and cut slopes. Subdraina e might
be needed in the following areas:
1. Within swales that receive fill;
2. On the uphill side of all keyways;
3. Along the toes of cut slopes;
4. At springs and seepage areas;
5. At geologic contacts that are observed transm itting seepage; and
'. 6. In other areas of the site where seepage is observed during and after grading, such as toes of
cut slopes, or as determined by the soils engineer.
Subdrains should consist of perforated PVC pipe conforming to ASTM Designation D 2751, Type
SDR 35 for fill depths less than 30 feet and Type SDR 23.5 for fill depths over 30 feet. Subdrain
pipes should have two rows of holes and should be installed with holes facing downward. Subdrain
pipes should be at least 6 inches in diameter. All subdrain pipes should be underlain and surrounded
by at least 6 inches of Caltrans Class 2 permeable material, as defined in Section 68 -1.025 of the
California Standard Specification (2006 Edition). Subdrain trenches should be at least 18 inches
wide and at least 4 feet deep. Final trench configurations should be approved by the soils engineer in
the field. Subdrain details are presented on Plate 5. Subdrain systems should be discharged into
storm drain structures, where possible, or other suitable surface discharge points.
Some areas of seepage could develop during or after house construction. Additional subdrains could
be needed in these areas.
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EXCAVATION CHARACTERISTICS
Conditions encountered in test pits, as well as our experience in the area, suggest that in general the
bedrock is rippable to anticipated excavation depths using conventional grading equipment.
CUTIFILL TRANSITION LOT TREATMENT
if the residences will bear on shallow foundations (structurally reinforced mat or spread footings, see
below), then building pads crossed by cut/fill transitions will require special treatment during
earthwork construction. To provide a relatively uniform subgrade to support such house
foundations, the cut portions of cut/fill transition lots should be overexcavated about 3 feet below
design pad grade and replaced with engineered fill. The overexcavation should extend at least 5 feet
laterally beyond the foundation footprints. The bottom of the overexcavation should be scarified,
moisture conditions, and compacted in accordance with the recommendations of a geotechnical
engineer.
FOUNDATION CONSIDERATIONS
Because of the relatively significant potential for long -term settlement and swell, our preliminary
recommendation is that foundations for houses should consist of structurally reinforced mat systems
designed to resist potential differential movement of the on -site expansive soils. - At the preliminary
design level, it could be anticipated that structural mat foundations will need to accommodate 3
inches total soil movement and 3/4 inch in 25 horizontal feet differential soil movement without
experiencing structural distress to the mat or excessive deflections in the house framing and wall
finishes. It may also be anticipated that the mats can be designed for an allowable uniform soil
pressure on the order of 1,500 psf, and resistance to lateral loading using a base friction factor on the
order of 0.3 between slab and subgrade may be appropriate. Additional measures such as capping
pads with low- expansive material and pre - soaking pad subgrades might be required. If desired,
raised wood floor for residences supported on other types of foundations, such as spread footings or
piers and grade beams, also could be utilized at the site. Detailed criteria for mat foundations should
be developed based on the results of future sampling, laboratory testing, and analysis for potential
settlement and swell.
OTHER STRUCTURES
We anticipate that geotechnical recommendations for other structures, including exterior concrete
work and utility trenches, will be typical for hillside residential developments in the area, and will
not be factors affecting the feasibility of the development. Detailed recommendations should be
provided with a detailed, design -level geotechnical investigation as project planning advances.
CORROSION CONSIDERATIONS
Tests for corrosive properties of on -site materials should be performed during design -level
investigation of the site. Corrosive soils can attack metal piping and concrete structures in contact
with the soil. Findings from similar earth materials at the neighboring Dublin Ranch development
showed conductivity levels within the range of moderately corrosive. Typical soil parameters
analyzed to evaluate for corrosion potential include sulfate, redox potential, pH, conductivity,
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resistivity, sulfide, and chloride. If future testing at the Redgewick site indicates a need, a corrosion
specialist could be commissioned for specific testing and evaluation and, if required, advice on
corrosion protection measures to be taken.
SEISMIC HAZARDS
SURFACE FAULT RUPTURE
The site is located outside official State of California designated earthquake fault zone (Davis, 1982)
for active faults, and the potential for surface fault rupture at the site is low.
GROUND SHAKING
The site is located in a region of high seismicity given the proximity of the Calaveras fault and other
active fault systems in the San Francisco Bay area. As for all.sites in the bay area, the project can be
expected to experience at least one moderate to severe earthquake during the life span of the
development. Ground shaking is a hazard that cannot be eliminated but can be partially mitigated
through proper attention to seismic structural design and observance of good construction practices.
LIQUEFACTION
Liquefaction is the temporary transformation of a saturated, cohesionless soil into a viscous liquid
during strong ground shaking from a major earthquake. There is no evidence of historic ground
failure due to liquefaction on the site, nor did we encounter any earth materials that might be
susceptible to liquefaction. Additionally, based on the Seismic Hazard Map prepared by the
California Geological Survey for the Livermore Quadrangle (CGS, 2008), the site is not located in an
area of expected liquefaction. Therefore, the risk of liquefaction is low.
GROUND SUBSIDENCE
Ground subsidence can occur as a result of dynamic densification, or "shakedown," when dry
cohesionless soil is subjected to earthquake vibrations of high amplitude. Loose cohesionless soils
were not encountered in our site investigation; therefore, seismic induced ground subsidence is not
considered a geologic hazard at this site.
EARTHQUAKE - INDUCED LANDSLIDING
Strong ground shaking during a major earthquake is likely to cause sympathetic reactivation of
landslides in many parts of the bay area. The stability of all slopes is lower during earthquake
disturbances than at other times. The site is shown within an area of potential seismically induced
iandsliding on Seismic Hazard Map for the Livermore Quadrangle (CGS, 2008). Grading in
accordance with the detailed recommendations of a geotechnical engineer is expected to result in a
low risk of seismically induced landslides.
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LIMITATIONS
The conclusions and recommendations of this report are based upon (1) the information provided to
us regarding the proposed residential development, (2) subsurface conditions encountered at the test
pit locations, (3) our geologic reconnaissance, and (4) professional judgment. This study has been
conducted in accordance with current professional geotechnical engineering and engineering
geologic standards; no other warranty is expressed or implied.
The locations of the test pits were determined by field estimating from topographic and cultural
features indicated on the 2001 topographic map supplied by MacKay and Somps at the time of our
field investigation, and are to be considered approximate only. The elevations discussed in this
report were also taken from the MacKay and Somps map and are approximate only. Site conditions
are described in the text as they were observed during our fieldwork in the summer of 2001, and are
not necessarily representative of such conditions at other locations and times.
If it is found during construction that subsurface conditions differ from those described on the test pit
logs then the conclusions and recommendations in this report shall be considered invalid, unless the
changes are reviewed and the conclusions and recommendations modified or approved in writing by
BGC.
Respectfully submitted,
BERLOGAR GEOTECHNICAL CONSULTANTS
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1WV1N JAMES RYAN t Z
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Attachments:
References
Plate 1 — Vicinity Map
Plate 2 — Area Geologic Map
a Plate 3 — Geologic,Map
Plate 4 — Typical bill Slope Detail
Plate 5 — Typical Subdrain Detail
Appendix — Test Pit Logs
Copies: Addressee (2)
MacKay & Somps (3 — via Hand Delivery)
Attention: Ms Lisa Vilhauer
1394.131 D/22156.doc
BERLOGAR GEOTECHNICAL CONSULTANTS
REFERENCES
Barlock, V.E., 1988, Geologic Map of the Livermore gravels, Alameda county, California: U.S.
Geological survey Open -File Report 88 -516.
California Geological Survey, August 27,2008, Seismic Hazard Zones, Livermore Quadrangle,
official map: CGS seismic hazard zones map.
Crane, R.C., 1988, Geologic map of the Livermore quadrangle, Alameda County, California,
unpublished map prepared for the Northern California Geological Society.
Davis, J.L., 1982, State of California special studies zones Livermore revised official map:
California Division of Mines special studies zones map•
Dibblee, T.W., 1980, Preliminary geologic map of the Livermore quadrangle, Alameda and Contra
Costa Counties, California: U.S. Geological Survey Open -File Report 80 -537.
Nilsen, T.H., 1973, Preliminary photo interpretation map of landslide and other surfcial deposits in
the Livermore and part of the Hayward 15- minute quadrangles, Alameda and Contra Costa
Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF -493.
AERIAL PHOTOGRAPHS
Date Flown
Source
Film ID
4/20/1986
PAS
AV 2862
5/5/1978
PAS
AV 1498
9/21 /1973
USGS
1
5/15/1969
PAS
AV 903
PAS = Pacific Aerial Surveys
USGS = U. S, Geological Survey
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BERLOGAR GEOTECHNICAL CONSULTANTS
PLATE 1
VICINITY MAP
NORTHWEST PORTION
REDGEWICK PROPERTY -
FALLON ROAD
DUBLIN, CALIFORNIA
FOR
MS. JENNIFER LIN
tE: PORTION OF U S.G.S. 7.5 MINUTE TOPOGRAPHIC QUADRANG
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CALIFORNIA, PHOTOREVISED 1960, AT A SCALE OF 1:24,0W.
BERLOGAR GEOTECHNICAL CONSULTANTS
PLATE 1
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ISE: PORTION OF PRELIMINARY GEOLOGIC MAP, LIVERMORE QUADRANGLE,
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BERLOGAR GEOTECHNICAL CONSULTANTS
PLATE 2
EXPLANATION
V!-
--- GEOLOGIC CONTACT AXIS OF SYNCLINE
- - - - - -- SANDSTONE BED
...... FAULT, DOTTED WHERE CONCEALED
QTE TASSAJARA FORMATION
T5 STRIKE AND DIP OF BEDDING Tps NON- MARINE DESIMENTARY
AND VOLCANIC ROCK
+
--}— AXIS OF ANTICLINE
111
AREA GEOLOGIC MAP
NORTHWEST PORTION
REDGEWICK PROPERTY
FALLON ROAD
DUBLIN, CALIFORNIA
FOR
MS. JENNIFER LIN
ISE: PORTION OF PRELIMINARY GEOLOGIC MAP, LIVERMORE QUADRANGLE,
CALIFORNIA, BY CRANE DATED 1988, AT A SCALE OF 124,000.
BERLOGAR GEOTECHNICAL CONSULTANTS
PLATE 2
SLOPE TO DRAIN
(SEE NOTE 2)
PTUAL DESIGN
GRADE
SUBDRAIN-
(SEE NOTE 3)
(SEE NOTE 3)
NOTES:
NOT TO SCALE
i- KEYWAY
15 FEET MINIMUM
(SEE NOTE 1)
4 FEET MI
NG GRADE
TOPSOIL,
COLLUMUM, OR
LANDSLIDE DEBRIS
1. KEYWAY SHOULD EXTEND AT LEAST 4 FEET INTO COMPETENT MATERIAL
AS DETERMINED BY THE SOIL ENGINEER. KEYWAY WIDTH SHOULD BE A
MINIMUM OF 15 FEET OR 112 OF THE FILL SLOPE HEIGHT, WHICHEVER IS
GREATER
2. WHERE NATURAL GRADE IS STEEPER THAN 7:1, BENCH INTO STIFF
SOIL OR BEDROCK AS DETERMINED BY SOIL ENGINEER
3. SUBDRAINS TO BE CONSTRUCTED IN ACCORDANCE WITH THE DETAILS
PROVIDED ON PLATE 5. SUBDRAIN LATERALS TO BE INSTALLED ON
EXCAVATION BACKCUT SPACED EVERY 25 FEET VERTICALLY
PREUMINARY
TYPICAL FILL SLOPE DETAILS
PLATE 4
Rrvi nr:eQ r.FOTFCHNICAL CONSULTANTS
CLASS 2 PERMEABLE
MATERIAL (NOTE 1)
PERFORATED PIPE
(NOTE 2)
KEYWAY AS APPROVED
BY THE SOIL ENGINEER
KEYWAY SUBDRAIN
18 INCHES
MINIMUM
18 INCHES
MINIMUM
4 FEET
MINIMUM
6l1NCHES
I
1
COLLECTOR SUBDRAIN
NOTES:
ASS 2 PERMEABLE
LTERIAL (NOTE 1)
RFORATED PIPE
(NOTE 2)
1. CLASS 2 PERMEABLE MATERIAL AS GIVEN IN SECTION 68 - 1.025, STATE OF CALIFORNIA
STANDARD SPECIFICATIONS, JULY, 2006 EDITION.
2. PERFORATED PIPE PLACED PERFORATIONS DOWN, PVC PIPE WITH A MINIMUM DIAMETER
OF SIX (6) INCHES, CONFORMING TO ASTM D -3034 SDR 35, FOR DEPTHS LESS THAN 30 FEET,
AND SDR 23.5 FOR THE DEPTHS GREATER THAN 30 FEET.
PRELIMINARY
TYPICAL SUBDRAIN DETAILS
PLATE 5
BERLOGAR GEOTECHNICAL CONSULTANTS
BERU
..... .......
APPENDIX
Test Pit Logs
Job No. 1394.131 0 Q
Northwest Portion of
Redgewick Property
Tassajara Road
Alameda County, California
TEST PIT LOGS
Test Pit
Depth
Number
Feet
Description
TP -1
0 -2'/2
Clay, dark grayish brown, dry grading down to moist, some fine
sand.
2% -7
Sandstone and Claystone, grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, thickly bedded, sandstone is
very fine - grained and silty. Bedding N40W 40SW.
Total depth 7 feet
No free groundwater encountered
TP -2
0 -5
Clay, dark grayish brown, dry grading down to moist, some fine
sand.
5 -10
Clay, grayish brown, moist, very stiff to hard, some fine sand.
10 -12
Clay, greenish gray, hard, wet. Shiny surface at 11 feet: N40W
16SW, no striations (bedding plane ?).
Total depth 12 feet
No free groundwater encountered
TP -3
0 -5
Clay, dark grayish brown, dry grading down to moist, some fine
sand.
5 -7
Clay, grayish brown to dark grayish brown, moist, hard, some fine
sand.
7 -10 Sandstone, very fine- grained and silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, thickly bedded.
Total depth 10 feet
No free groundwater encountered
TP -4 0 -5'/ Clay, dark grayish brown, dry grading down to moist, some fine
sand.
5 %Z -7' /z Clay, grayish brown to dark grayish brown, moist, hard, some fine
sand.
7'/2 -10 Sandstone, very fine- grained and silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, thickly bedded.
Possible bedding N40W 35SW, very crude, vague.
Total depth 10 feet
No free groundwater encountered
1394.131 D/22156tp.doc A -1
BERLOGAR GEOTECHNICAL CONSULTANTS
Job No. 1394.131 �� Q •� I "
Northwest Portion of
Redgewick Property
Tassajara Road
Alameda County, California
TEST PIT LOGS
Test Pit Depth
Number Feet Description
TP -5 0 -3 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
3 -7 Sandstone, grayish and yellowish brown, moist, friable, moderately
weathered (in upper few feet) grading down to slightly weathered,
moderately to highly fractured, thickly bedded, very fine - grained and
silty.
Total depth 7 feet
No free groundwater encountered
TP-6 0 -2' /z Clay, dark grayish brown, dry grading down to moist, some fine
sand.
2% -6' /z Sandstone and Claystone, grayish and yellowish- brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, thickly bedded, sandstone is
very fine- grained and silty.
Total depth 6% feet
No free groundwater encountered
TP -7 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
5-6 Clay, grayish brown to dark grayish brown, moist, hard, some fine
sand.
6-8'/2 Sandstone and Claystone, grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, thickly bedded, sandstone is
very fine- grained and silty. Claystone as boudinaged bodies with
crude alignment showing vague possible southwest dip.
Total depth 8' /Z feet
No free groundwater encountered
1394.131 DW156tp.doc A -2
BERLOGAR GEOTECHNICAL CONSULTANTS
Job No. 1394.131'" L�
Northwest Portion of O
Redgewick Property
Tassajara Road
Alameda County, California
TEST PIT LOGS
Test Pit Depth
Number Egetj Description
TP -8 0-4 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
4 -5 Clay, grayish brown to dark grayish brown, moist, hard, some fine
sand.
5 -9'/Z Sandstone, fine- and medium - grained, silty, grayish and yellowish
brown, moderately weathered (in upper few feet) grading down to
slightly weathered, friable, moderately to highly fractured, thickly
bedded, Very crude bedding N30W 45SW.
Total depth 9% feet
No free groundwater encountered
TP -9 0 -3 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
3-8 Sandstone and Claystone: grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, massive, sandstone is very
fine- grained and silty.
Total depth 8 feet
No free groundwater encountered
1394.131 D/22156tp.doc A -3
BERLOGAR GEOTECHNICAL CONSULTANTS
TP -10 0-4 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
4 -5 Clay, yellowish brown, moist, hard, sandy.
5 -8 Sandstone, fine- to medium - grained, silty, grayish and yellowish .
brown, moderately weathered (in upper few feet) grading down to
slightly weathered, friable, moderately to highly fractured, massive.
Total depth 8 feet
No free groundwater encountered
TP -11 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine
sand.
5 -13 Clay, grayish brown, moist, hard.
13 -15% Patchy Claystone and Clay, grayand brown, friable claystone and
hard clay.
Total depth 151/2 feet
No free groundwater encountered
1394.131 D/22156tp.doc A -3
BERLOGAR GEOTECHNICAL CONSULTANTS
Test Pit
Depth
Number
Feet
TP -12
0 -2%
2'/2 -6 %2
Description
Clay, dark grayish brown, dry grading down to moist, some fine
sand.
Sandstone, very fine- grained, silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, massive.
Total depth 6% feet
No free groundwater encountered
1394.131 D122156tp.doc
BERLOGAR GEOTECHNICAL CONSULTANTS
/ Q!
any *�Ho
Appendix E:
Supplemental Geotechnical Investigation
91
October l.. 2009
Job No. 1394.131D1
Ms. Jennifer Lin
c/o Mr. Jim Tong
Charter Properties
4690 Chabot Drive, Suite 100
Pleasanton, California 94588
Subject: Supplemental Geotechnical Investigation
Northwest Portion of Redgewick Property
Fallon Road
Dublin, California
Dear Ms. Lin:
This report presents the results of supplemental geotechnical investigation to define the geology
at the subject site. The geologic conditions at the site will determine the extent of grading that
will be required for this project: We issued a Feasibility Level Geotechnical Investigation dated
May 18, 2009 for this site, wbich identified areas of landslides and potential colluvial
swales/iandslides. Landslides and colluvium were identified north of the building areas, and
potential colluvium /landslides were delineated in three bowl - shaped locations within the
proposed building areas.
Subsequently, we excavated seven test pits in these bowl- shaped areas on September 27, 2009.
The landslides north of the building areas should not impact improvements; hence, additional
field exploration was not performed in this area. The recent test pits encountered 3 to 7 feet of soil
overlying bedrock in the bowl - shaped areas. Shear planes were not observed in the test pits and
the material appeared to be residual soil or colluvium; hence, we conclude that the three bowl-
shaped areas are not landslides.
Plate 1, Preliminary Grading Limits, shows the test pit locations, revised geology based on this
supplemental investigation and preliminary limits of grading for this project. The test pit logs
from this study and from the May 18'h investigation are also attached. Grading will include
keying into the underlying bedrock at the bottom of fill slopes and installing subdrains. Cut
slopes will expose highly expansive soil at the top of the cuts. This expansive soil material
exposed on the cut slopes would be potentially unstable and undergo sloughing. In order to
reduce the potential for surface soil sloughing, removal of the expansive clay one equipment
width and replacement with compacted fill using select on -site bedrock materials is recommended
at the top of cut slopes. More detailed grading recommendations will be provided in the design
level geotechnical report to be issued at a later date.
Sill. UNIG tiEERS • EK- JNF.ERING GEOLOGISTS • 358: SLIN01 B(AU1. EVARED • PLEASANTON. CA 945i 1, 14 25) 984 -02H t FAX: 19251 846.9645
We trust this provides the necessary information at this time. If you have any questions, please
contact Bill Stevens or Frank Berlogar at (925) 484 -0220 or bstevens!cr�@berlokar.com.
Respectfully submitted,
BERLOGAR GEOTECHNICAL CONSULTANTS
QROFE� /0
2
William R. Stevens! 2339 F B rlog ra
Principal Engineer j Exp, 03 -31 -10
GE 2339, Exp, 3/31A0
FaF ca�.�F°
WRS /FB:jInb
Attachments:
Plate 1 — Preliminary Limits of Grading
Test Pit Logs, May 2009
Test Pit Logs, September 2009
Copies: Addressee (2)
MacKay & Somps (3 mail and email)
Attention: Ms Lisa Vilhauer
1394,13 ID1122408 doe
BERLOGAR GEOTECHNICAL CONSULTANTS
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Job No 1394.131
Northwest Portion of
Redgewick Property
Tassojara Road
Alameda County, California
TEST PIT LOGS
Tesl Pit Depth
Number Feet Description
TP -1 0 -2'h Clay, dark grayish brawn, dry grading down to moist, some tine sand.
2'/z -7 Sandstone and Cloystone, grayish and yellowish brown, moderately
weathered (it) upper few feet) grading down to slightly weathered,
Noble, moderately to highly fractured, thickly bedded, sandstone is
very fine- grained and silty, Bedding N40W 40SW.
Total depth 7 feet
No tree groundwater encountered
TP -2 0-5 Clay, dark grayish brown, dry grading down to moist, some fine sand.
5-10 Clay, grayish brown, moist, very stiff to hard, some fine sand.
10-12 Clay, greenish gray, hard, wet. Shiny surface at 11 feel: N40W 16SW,
no striations (bedding plane).
Total depth 12 feet .
No free groundwater encountered
TP -3 0-5 Clay. dark grayish brown, dry grading down to moist, some fine sand.
5 - 7 Cloy, grayish brown to dark grayish brown, moist, hard. some fine
sand.
7-10 Sandstone, very fine - grained and silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, thickly bedded.
Total depth 10 feet
No tree groundwater encountered
TP -4 0 - 5'12 Clay, dark grayish brown, dry grading down to moist, some fine sand.
5'/2 - 7'/2 Clay, grayish brown to dark grayish brown, moist, hard, some fine
sand.
7Yz - 10 Sandstone, very fine- grained and silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to stightfy
weathered, friable, moderately to highly fractured, thickly bedded.
Possible bedding N40W 355W, very crude, vague.
Total depth 10 feet
No free groundwater encountered
1394 131 D122156tp.doc A--1
BERLOGAR G>OTECHNFCAL CONSULTANTS
Job No. 1394,131
Northwest Portion of
Redgewick Property
Tossajora Road
Alameda County. California
TEST PIT LOGS
Test Pit Depth
Number Fee€ Description
TP -5 0-3 Clay, dark grayish brown, dry grading down to moist, some fine sand.
3-7 Sandstone, grayish and yellowish brown, moist,.friable, moderately
weathered (in upper few feet) grading down to slightly weathered.
moderately io highly fractured, thickly bedded, very fine- grained and
silty.
Total depth 7 feet
No free groundwater encountered
TP -6 a - 2!/2 Clay, darts grayish brown, dry grading down to moist, some tine sand.
2'/2-61/2 Sandstone and Claystone, grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, thickly bedded, sandstone is
very fine - grained and silty.
Total depth 61,12 feel
No free groundwater encountered
TP -7 0-5 Clay, dark grayish brown, dry grading down to moist, some fine sand.
5-15 Clay, grayish brown to dark grayish brown, moist, hard, some, fine
sand.
6 - 8'h Sandstone and Claystone, grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, thickly bedded, sandstone is
very fine- grained and silty. Claystone as boudinaged bodies with
crude alignment showing vague possible southwest dip.
Total depth 8'/.) feet
No free groundwater encountered
t 394.131©l22166tp.doc J{_2
BERLOGAR GEQTECI-INICAL CONSULTANTS
Job No 1394 131
Northwest Portion of
Redgewick Property
Tossojara Rood
Alameda County, California
TEST PIT LOGS
Test Pit Depth
Number iltg± Descriplion
TP-8 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand.
4-5 Cloy. grayish brown to dark grayish brown, moist, hard, some fine
sand.
5 -9'/2 Sandstone, fine- and medium - grained, silty, grayish and yellowish
brown, moderately weathered (in upper few feet) grading down to
slightly weathered, friable, moderately to highly fractured. thickly
bedded. Very crude bedding N30W 455W.
Total depth 9% feet
No free groundwater encountered
TP -9 0-3 Clay, dark grayish brown, dry grading down to moist, some fine sand.
3-8 Sandstone and Claystone: grayish and yellowish brown, moderately
weathered (in upper few feet) grading down to slightly weathered,
friable, moderately to highly fractured, massive, sandstone is very fine -
grained and silty.
Total depth 8 feet
No free groundwater encountered
iP -10 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand.
4 - 5 Clay, yellowish brown, moist, hard, sandy.
5-8 Sandstone, fine- to medium - grained, silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, massive.
Total depth 8 feet
No free groundwater encountered
TP -11 0-6 Clay, dark grayish brown, dry grading down to moist, some fine sand.
5-13 Clay, grayish brown, moist, hard.
13-151/2 Patchy Claystone and Clay, gray and brown, friable Claystone and
hard clay.
Total depth 15'/2 feet
No free groundwater encountered
1394.131 D=156tp doc A_3
BERLOGAR GEOTECHNICAL CONSULTANTS
TEST PIT COGS
Test Pit Depth
Number Feet Descriotio.n
TP -12 0 - 2'/2 Clay, dark grayish brown, dry grading down to moist, some fine sand.
2% - b'' /s Sandstone, very fine - grained, silty, grayish and yellowish brown,
moderately weathered (in upper few feet) grading down to slightly
weathered, friable, moderately to highly fractured, massive.
7ofai depth 6% feel
No free groundwater encountered
1394,131 D1221 Mip.doc
BERLOGAR GEOTECHNiCAL CONSULTANTS
A_q
TEST PIT LOGS
Test Pit
Depth
Number
feet
Description
TP -1
0-3
CL, gray- brown. dry, soft.
3-4
ML, gray - brown, dry, stiff.
4-5
Sandstone, very fine grained, friable, very highly weathered, brown. dry.
Total Depth 5 feet
No free groundwater encountered
TP -2
0-3
CL, gray - brown, dry, soft.
3-4
Clayey Sandstone, gray- brown, dry to dump, hard, friable, very highly
weathered.
4 -5
Sands tone/Sil tstone, yellow- brown, very fine grained, dry, very highly
weathered, friable.
Total Depth 5 feet
No free groundwater encountered
TP -3
0-2
Clay, gray- brown, dry, soft.
2-4
Claystone, greenish - brown, with cobble -sized white to pinkish, fery fine
sandstone particles, rounded, some iron, stiff, very highly weathered,
very highly fractured.
Total Depth 4 feet .
No free groundwater encountered
TP -4
0-4
Clay, grayish- brown, soft, becoming stiff with depth, white linear stains.
4-7
Sandstone, very highly _ fractured, very highly weathered, very fine
grained, dry, whitish- yellow brown, subrounded gravel -sized white
nodules.
Total Depth 7 feet
No free groundwater encountered
TP -5
0 -4
Clay, grayish- brown, soft, stiff with depth, dry.
4-6
Clayey Sandstone, greenish gray brown, friable, medium to coarse-
grained, very highly weathered.
Total Depth 6 feet
No free groundwater encountered
BERLOGAR GEQTECHNICAL CONSULTANTS
TEST PIT LOGS
Test Pit Depth
Number feet Description
T P -6 0-4 Clay, grayish4xown, sofa, stiff Wth depth. dry.
4-5 Clayey 5andsfone, gray- brown, very highly weathered, very fine.
5-6 Sandstone, gray brown, medium to coarse, f €table, very highly
weathered.
Total Depth 6 feet
No free groundwater encountered
TP -7 0 -3 Ciay, grayish - brown, soft, stiff with depth. dry.
3 - 5'/-a Clayey Sandstone, gray- brown, very highly weathered, medium -
grained.
Total Depth 5% feet
No free groundwater encountered
1344.131 DIM4031r.doc
BERLOGAR GEOTECHNtCAL CONSULTANTS
Appendix F:
Phase i Environmental Site Assessment
Phase I Environmental
Site Assessment
for
MacKay & Somps
Redgewick Property
6582 Tassajara Road
Livermore, Alameda County, California 94550
Comm. No. 2003 -03431 -0002
July 17, 2003
Eckland Consultants Inc.
222 Kearny Street
Suite 306
San Francisco, California 94108
(415) 982 -2080 Phone
(415) 992 -2082 Fax
Phase I Environmental Site Assessment
Redgewick Property
Livermore, California
TABLE OF CONTENTS
EXECUTIVE SUMMARY
1. PROJECT IDENTIFICATION ................ ...............................
II. OBJECTIVE AND SCOPE ..................... ...............................
III. SITE DESCRIPTION .............................. ...............................
IV. SITE HISTORY ....................................... ...............................
V. SITE OBSERVATIONS .......................... ...............................
VI. DATABASE RECORDS REVIEW ............. I ............ I.............
VII. ASTM NON -SCOPE ITEMS .................. ...............................
VIII. CONCLUSIONS AND RECOMMENDATIONS .................
IX. INTERVIEWS ......................................... ...............................
ATTACHMENTS:
Site Vicinity Map
Parcel Map
USGS Topographic Map
Environmental Site Assessment Questionnaire
Aerial Photographs
EDR Database Report
Site Photographs
agto �yyc,'
July 17, 2003
Comm. No. 2003 - 03431 -0002
..............:...........1
............... ..............................2
............... ..............................4
............... ..............................7
............... ..............................9
.............. .............................11
.............. .............................17
.............. .............................19
.............. .............................20
I. PROJECT IDENTIFICATION
Subject Site: Redgewick Property
Location: 6582 Tassajara Road
Livermore, Alameda County, California 94550
Site Area: 160 +/- acres (157.88 according to the Alameda County Parcel
Map)
Observation Date: July 9, 2003
Weather Conditions: Sunny with no precipitation
Temperature: 80 °F
Observed By: Timothy J. Casey
Engineering Associate
Report Prepared By: Timothy J. Casey
Engineering Associate
Richard E. Watson
Licensed Architect
Report Reviewed By: Michael P. Poulos
Certified Environmental Professional
Quality Assurance Manager
Site Contact Name: Mr. Martin Inderbitzen
Attorney at Law
Contact Telephone: (925) 485 -1060
sib �
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 2
11. OBJECTIVE AND SCOPE
Objective
The purpose of this Phase I Environmental Site Assessment (Phase I) is to identify recognized
environmental conditions that may have an impact on the subject site, using readily available
sources of information, interviews and field observations.
Procedures
This Report is a Phase I for the Redgewick Property located at 6582 Tassajara Road in
Livermore, California, performed in general accordance with ASTM Designation E 1527 -00,
Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment
Process and following the Scope of Work outlined in Eckland Consultants Inc.'s Proposal dated
May 27, 2003. Eckland Consultants Inc. (Eckland) conducted on -site observations on July 9,
2003, interviewed site operations personnel and observed adjacent properties. Database searches
were conducted following ASTM guidelines by Environmental Data Resources Inc. (EDR). Such
searches are generally limited to a radius of 1.0 mile from the subject site. Additionally, ASTM
Non -Scope items are addressed in this Report, including Asbestos, Lead -Based Paint, Lead in
Drinking Water, Radon Gas, Wetlands and Mold. No analytical testing was performed.
Limitations
Eckland Consultants Inc. does not warrant or guarantee the environmental conditions of the site
or the Client's ability to assert a defense under the Comprehensive Environmental Response,
Compensation and Liability Act of 1980 (CERCLA) or any comparable state or local law.
Documents
Our Report represents our professional experience and judgment, and a good faith effort to
obtain readily available information to render a professional opinion. Documents and data
provided by the Client, its designated representatives, or other interested parties, and consulted in
the preparation of this Report, have been reviewed and may be referenced herein, with the
understanding that Eckland assumes no responsibility or liability for their accuracy or for the
withholding by any of the involved parties of any reports or other information that could affect
the transaction.
Intended Use
This Report is intended to be used in its entirety. No portion of it may be deleted or used out of
context without the written consent of Eckland. The opinions and information contained in this
Report are time sensitive and represent our evaluation of the environmental site conditions at the
time the services were provided. This Report was prepared for a limited use involving a single
Phase 1 Environmental Site Assessment July 17, 2003
•Redgewick Property Comm. No. 2003 - 03431 -0002
Livermore, California Page 3
transaction, as set forth herein, and may not be used for any other purpose without the written
consent of Eckland.
Proprietary Information
Field .data, field notes, and other data and documents assembled by Eckland to produce this
Report represent the work product of Eckland's training, experience and professional skill. This
information belongs to and remains the property of Eckland.
Reliance
This Report is for the exclusive use of the Lin Family, Charter Properties, Mr. Martin Inderbitzen
(attorney), and, upon Charter Properties' approval, a yet- to -be- identified future conservation
easement recipient. No other party shall have any right to rely on any service provided by
Eckland without prior written consent.
Definition
For the purposes of this Report, a "Recognized Environmental Condition" is defined as the
presence or likely presence of any hazardous substances, hazardous waste or petroleum products
(as defined by ASTM E 1527 -00, Sections 3.2.15, 3.2.16 and 3.2.26) on the subject site under
conditions that indicate an existing release, a past release or a.material threat of a release into the
structures, ground, ground water or surface water of the subject site. The term is not intended to
include de minimis conditions, but it does include issues of environmental significance to
commercial real estate.
The term "Historical Recognized Environmental Condition" (HREC) is defined as a condition
that in the past would have been considered a. REC, but that may or may not be considered a
REC currently, as judged by the current impact of the HREC on the subject site.
R9 I �1 LAO
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003- 03431 -0002
Livermore, California Page 4
Ili. SITE DESCRIPTION
Site Visit and Interviews
On July 9, 2003, Timothy J. Casey, an environmental professional from Eckland, visited the
subject site, a large parcel of undeveloped land with a proposed use of ecological and wetlands
mitigation and conservation. Eckland was unaccompanied during the site walk - through. Mr.
Martin Inderbitzen, the site contact, answered questions concerning the current and historical
use, operations and improvements at the subject site. Mr. Inderbitzen stated that he has been
associated with the subject site for the past 5 years and was familiar with the historical use of the
property.
Eckland requested completion of an Environmental Site Assessment Questionnaire
(Questionnaire) regarding the subject site from Mr. Inderbitzen (Attorney at Law). A completed
and signed copy of the Questionnaire has not yet been received by Eckland. A blank copy of the
Environmental Site Assessment Questionnaire submitted by Eckland is attached to this Report.
On July 16, 2003, Eckland received a completed and signed copy of the Environmental Site
Assessment Questionnaire regarding the subject site from Mr. Inderbitzen, Owner's
Representative. In the Questionnaire, it is reported that:
1) Minor quarrying activity has taken place at the site.
Further discussion of . the quarrying activity is discussed below under the Exterior Surface
Conditions heading of Section V, of this Report.
A copy of the Environmental Site Assessment Questionnaire is appended to this Report.
Eckland looked for suspect asbestos - containing building materials, stored chemicals,
underground and aboveground storage tanks, unusual surface appearance, wetlands and other
issues that may indicate environmental conditions at the subject site. Eckland noted the location
of on -site electrical power transformers and storm drainage structures where these were
encountered. Eckland observed sites adjoining the subject site and areas within the immediate
vicinity of the subject site.
Eckland photographed selected features at or near the subject site to support this written Report.
The photographs are identified, described and appended to this Report.
Subject Site
The subject site is a rectangularly shaped parcel that contains a total area of approximately 160
+/- acres (157.88 acres) and is located in an area used for agriculture. The subject site is
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003- 03431 -0002
Livermore, California Page 5
landlocked along all boundaries, does not have street frontage along any boundary, and has
indirect access from Tassajara Road.
The topography of the site slopes steeply towards the southwest with a maximum surface
elevation difference of approximately 300 feet. On -site storm water drainage is by sheet flow to
the adjoining sites. There are no private wells or septic systems located on the subject site.
Electric service is provided only to the water tank located at the southeast corner of the site.
Pacific Gas and Electric Service is the electrical supplier and would be responsible for
transformer- related incidents.
Natural gas service would be provided by Pacific Gas and Electric Service. The site will be
served by City of Livermore municipal water and sanitary sewer services from buried utilities
along the adjacent thoroughfares.
Buildings
The subject site consists of vacant land. There is a water tank of unknown size with a paved road
located in the southeast corner of the site.
Adjoining Properties
Properties immediately adjoining the subject site are listed in the following table. All adjoining
properties are located in Livermore, California.
Adjoining Properties
Name
Operation
Direction from Site
Concerns
Agricultural
Agricultural / Cattle Grazing
North
None
Agricultural
Agricultural / Cattle Grazing
East
None
Residential/Agricultural
Residential / Agricultural / Cattle Grazing
South
None
Agricultural
Agricultural / Cattle Grazing
West
None
Because of the controlled surface drainage and the predominantly nonhazardous uses of these
properties, they do not, in our opinion, pose .a significant environmental concern to the subject
site.
Vicinity
Eckland observed other properties located near the subject site for current uses or conditions that
may be environmentally significant. The local area properties observed by Eckland did not
appear to be engaged in environmentally significant activities.
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No, 2003- 03431 -0002
Livermore, California Page 6
Topography and Hydrology
According to the most recent United States Geological Survey (USES) Livermore, California,
Quadrangle topographic map dated 1961 (photo revised in 1981), the subject site is
approximately 550 to 883 feet above mean sea level. The general site drainage flows in a
southwesterly direction across the surface of the site. No substantial grade changes appear to
have been made to the subject site when compared to the topography of surrounding sites. A
copy of the USGS topographic map that covers the subject site is appended.
Geology, Hydrogeology and Surficial Soils
The subject site is located above Tertiary -age, sedimentary bedrock, consisting of nonmarine
alluvium. The depth to bedrock is not known. According to the Soil Survey for Alameda County,
California, the subject site is located in an area of Altamont Clay. These soil types have low
permeability and would be expected to have low susceptibility to ground water contamination as
a result of surface spreading of wastes, depending upon local soil conditions.
The direction of shallow ground water flow generally follows the surface topography, moving
from high - ground areas toward low -lying areas such as streams, valleys and wetlands. Rainfall,
withdrawal .through wells and below -grade construction may alter ground water flow patterns.
The regional surface water flows in a southwesterly direction toward Tassajaia Creek. The
ground water flow in the area is assumed to be to the southwest. The depth to ground water is not
known.
There is an on -site pond known as Redgewick pond located centrally on the southern portion of
the property.
IV. SITE HISTORY
The following summarizes Eckland's review of readily available historical records, photographs,
and maps gathered from government agencies, commercial enterprises and previous reports
regarding the subject site history and use. The historical sources reviewed by Eckland are listed
below.
Interviews
According to Mr. Inderbitzen, the subject site has always been vacant land and was never
improved.
Eckland interviewed Mr. Inderbitzen regarding soil grading activities at the subject site. Mr.
Inderbitzen stated minor quarrying activity occurred at the subject site in the 1980s. Please refer
to Section V, Exterior. Surface Conditions, of this Report for further discussion.
Building Department Records
Currently, the subject site is vacant land. There is a water tank of unknown size with a paved
road located in the southeast corner of the site. According to the County of Alameda Planning
Department the following address and parcel number is associated with the property: 6582
Tassajara Road; 985- 0001 -002. According to County of Alameda Building department there are
no records for building structures at the subject site. See the attached Parcel Map.
Aerial Photograph Review
Aerial photographs are reviewed to identify past site use and areas of environmental concern on
the subject site. Eckland reviewed aerial photographs of the subject site for the years 1939, 1958,
1965, 1982, and 1993. The photographs were obtained from EDR. Copies of the aerial
photographs that were obtained and reviewed by Eckland are appended.
The 1939, 1958, 1965, and 1982 aerial photograph shows the subject site to be grazing land. The .
surrounding properties are shown to be grazing land.
The 1993 aerial photograph shows the subject site to be grazing land. It appears that some
surface scarring has occurred in the southwestern portion of the site. It also appears that a road
leads to the surface scarred areas. The surrounding properties are shown to be grazing land.
Based on Eckland's interpretation of the available aerial photographs, the past site use is shown
to be grazing land. Evidence of surface scarring was identified. Eckland assumes the surface
scarring is related to Quarry Permit that was issued for the site in 1983. Please refer to Section V,
Exterior Surface Condition for further discussion of the surface scarring. No evidence of long-
term fill activity, staining or other issue of environmental concern was identified by Eckland
during the aerial photograph review.
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Phase 1 Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 - 03431 -0002
Livermore, California i Page 8
Fire Insurance Map Review
Beginning in the 1860s, the Sanborn Fire Insurance Company, and others, prepared maps that
depict site improvements and commercial activities in many metropolitan areas in the United
States. Eckland attempted to obtain fire insurance maps, specific to the site, to review as part of
this Phase 1. However, none were available.
.Historical Maps
Historical maps and city directories provide information concerning historical site boundaries
and improvements. Eckland attempted to obtain such documents to review as part of this Phase 1.
However, none were available other than the USGS topographic map from 1961, which shows
the subject site absent of structures.
Directories
City directories provide information concerning historical site ownership and use. Eckland
attempted to obtain such documents to review as part of this Phase I. However, none were found.
Title Record Review
A title records review, or chain -of- title, can be used to identify prior ownership of a property and
to evaluate previous activities or operations in terms of environmental significance. Easements,
covenants, restrictions and environmental liens may be indicated in a title record. A title records
review for the site was not requested by the Client.
Document Review
No documents or reports by others were obtained or reviewed by Eckland as part of this Phase 1.
F
C)It HLA0
Phase T Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003- 03431 -0002
Livermore, California Page 9
V. SITE OBSERVATIONS
Fixed Facilities Review
Currently, the subject site is vacant land. There is a water tank of unknown size with a paved
road located in the southeast corner of the site.
Site Tenant Activities
During the site visit, the subject site was observed to be vacant land. According to Mr.
Inderbitzen, no tenants currently occupy or utilize the subject site.
On -Site Chemical and Petroleum Product Storage
The subject site was vacant land at the time of Eckland's site visit and no chemicals or petroleum
products were being stored or utilized.
Waste Disposal Practices
The subject site was vacant land at the time of Eckland's site visit and no waste was being
generated.
Underground and Aboveground Storage Tanks
Owners and operators of certain USTs and ASTs are required to register those USTs and ASTs
with the state agency responsible for administering the federally mandated UST /AST program. A
search of the list of registered USTs and ASTs in California, prepared by EDP, showed that no
registered USTs or ASTs are located on the subject site.
Eckland interviewed Mr. Inderbitzen regarding the presence of USTs and ASTs on the subject
site. Mr. Inderbitzen stated that no USTs or ASTs containing regulated or hazardous substances
are located on the subject site. Eckland interviewed Ms. Leslie Litton, file clerk of the Alameda
County Fire Department, regarding USTs and ASTs at the site. The fire department records
indicate that there are no USTs or ASTs on -the subject site. Eckland interviewed Ms. Roseanna
Garcia, file clerk with Alameda County Department of Environmental Health, regarding USTs
and ASTs at the site. The Department of Environmental Health records indicate that there are no
USTs or ASTs on the subject site.
Eckland visually observed the subject site for surficial evidence of USTs and ASTs. Eckland did
not observe any evidence of USTs or ASTs at the subject site. A search of the list of registered
USTs in California, prepared by EDR, showed that no registered USTs are located on the subject
site.
Polychlorinated Biphenyls (PCBs)
The Toxic Substances Control Act (TSCA) requires that electrical transformers be labeled to
identify their PCB content.- Manufacture and distribution of PCBs was banned in 1979.
Transformer owners are responsible for compliance. with all applicable regulations governing
those transformers, including maintenance of the transformer and any remediation work resulting
from a transformer - related incident.
Eckland did not observe any electrical transformers during the site visit. Eckland recommends no
further action with regard to PCB's in transformers.
Exterior Surface Condition
Eckland observed the exterior surface of the subject site. It is estimated that less than 1% of the
subject site surface was covered by the water tower and associated paved area.
Interview remarks by Mr. Inderbitzen indicated that the subject site was not previously utilized
as a solid waste disposal facility.
Interview remarks by Mr. Inderbitzen indicated that the subject site was previously utilized as a
quarry. Mr. Inderbitzen stated Quarry Permit No. SMP -12 was issued on May 11, 1983 for
quarry activities at the subject site. Mr. Inderbitzen stated a 1994 County Surface Mining
Inspection Report stated that an insignificant amount of material had been mined, approximately
less than 2% of its overall volume. Mr. Inderbitzen stated the mined material was aggregate.
According to the county, state and federal agencies contacted by Mr. Inderbitzen, as part of
coordination efforts in determining the development potential of the subject site, no
historical environmental concerns were indicated.
Additionally, Mr. Inderbitzen stated that the subject site has not been the location of a petroleum
spill, chemical spill, fire or other environmental incident during his tenure.
No pits, ponds or lagoons were observed at the subject site during the site visit. No areas of
distressed or dead vegetation, fill, surface depressions or surface stains that may be attributed to
chronic leaks or spills were observed during the site visit.
Interior Surface Condition
The subject site was vacant land at the time of Eckland's site visit. However, there is a water tank
of unknown size with a paved road located in the southeast corner of the site.
dqg t �Ho
Phase 1 Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003- 03431 -0002
Livermore, California Page 11
VI. DATABASE RECORDS REVIEW
An environmental records database search report dated July 10, 2003, was provided by EDR. A
copy of EDR's report is appended. The following discussion excerpts specific items from the
report that are deserving of additional description. Due to the large size of the property, EDR
increased the below listed databases radius by' /4 mile.
In addition to the mapped sites in the EDR report, there also may be a list of unmapped sites,
known as "orphans." These are reported database sites that, due to incomplete addressing
information, could not be accurately plotted by EDR. In an attempt to locate all orphan sites,
Eckland compared each address provided on the orphan site list to known addresses of the site
and vicinity, and attempted to locate orphan sites during reconnaissance of the vicinity. Eckland
concludes that no mappable orphan sites were identified that meet the search radius criteria of
the scope of work and are considered to be environmentally significant to the subject site.
Comprehensive Environmental Response Compensation and Liability Information
System (CERCLIS)
Since 1982, the U.S. EPA has maintained lists of contaminated sites under the federal Superfund
Program in accord with the Comprehensive Environmental Response, Compensation and
Liability Act of 1980 ( CERCLA). The U.S. EPA discovers these sites from citizen reports,
routine inspection of hazardous waste generators and treatment, storage and disposal facilities,
and reporting requirements.
Review of the most recent CERCLIS list identifies no CERCLA sites within the approximate
minimum search distance of %z mile from the subject site.
CERC -NFRAP
As of February 1995, CERCLA sites designated "No Further Remedial Action Planned"
(NFRAP) have been removed from CERCLIS. CERC -NFRAP sites may be where, following an
initial investigation, no contamination was found, contamination was removed quickly without
the need for the site to be placed on the National Priorities List (NPL), or the contamination was
not serious enough to require Federal Superf ind action or NPL consideration. CERC -NFRAP
sites, however, may continue to represent a concern to local or state regulators.
Review of the most recent CERC -NFRAP list identifies no CERC -NFRAP sites within the
approximate minimum search distance of '/2 mile from the subject site.
National Priorities List
The U.S. EPA maintains this list as a subset of CERCLIS, identifying over 1,200 CERCLA sites
for priority cleanup under the Superfund Program. Once sites have been designated on the
CERCLIS list, the U.S. EPA uses its Hazard Ranking System to determine the potential risks of
those sites to human health and the environment. Only the sites that present the greatest risk are
added to the NPL, which qualifies the sites to receive CERCLA remedial funding.
Review of the most recent NPL list identifies no NPL sites within the approximate minimum
search distance of 1 mile from the subject site. -
RCRA - Generators
The U.S. EPA's RCRA (Resource Conservation and Recovery Act, 42 U.S.C. §6991 et seq.)
Program identifies and tracks hazardous waste from the point of generation to the point of
disposal. Generators are also listed in the FINDS database.
Review of the most recent RCRA - Generator facility list identifies no RCRA- Generator facilities
on the subject site and no RCRA- Generator facilities on an adjoining property.
RCRA - Treatment, Storage, Disposal Facilities (TSD)
The Resource Conservation and Recovery Act Information System ( RCRIS) is a compilation of
selective information on facilities that generate, store, transport, treat or dispose of hazardous
waste. Inclusion of a facility on the RCRIS database is not necessarily an indication of an
environmental problem.
Review of the most recent RCRA -TSD facility list identifies no RCRA -TSD facilities within the
approximate minimum search distance of 1 mile from the subject site.
RCRA - Violators
Three administrative systems track violations of the RCRA Act: the RCRA Administration
Action Tracking System (RAATS), which contains records based on enforcement actions issued
under RCRA pertaining to major violators and includes administrative and civil actions brought
by the EPA; the CORRACTS listing, which identifies hazardous waste handlers with RCRA
corrective activity; and the RCRIS -LQG (Large - Quantity Generator) Violator List, which is
reported as part of the EDR RCRA listing.
Review of the most recent RAATS and RCRIS -LQG Violator lists identifies no RCRA- Violator
facilities on the subject site and/or adjoining properties. Additionally; no RCRA CORRACTS
facilities were identified within 1 mile of the subject site.
Emergency Response Notification System (ERNS)
The ERNS is a compilation of reported releases of hazardous substances into the environment.
The database contains information from Spill Reports made to federal authorities, including the
U.S. EPA, the U.S. Coast Guard, the National Response Center and the U.S. Department of
Transportation.
3f)o
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 - 03431 -0002
Livermore, California Page 13
Review of the most recent ERNS list found no ERNS records concerning the subject site.
Underground Storage Tanks
Certain USTs are regulated under the RCRA ACT, and must be registered with the state agency
responsible for administering the UST program. USTs are also listed in the CA FID and HIST
UST database. Inclusion of a facility on the UST database is not necessarily an indication of an
environmental problem.
Review of the most recent UST list identifies no registered UST facility on the subject site and
no registered UST facilities on adjoining properties.
Leaking Underground Storage Tanks (LUSTs)
Review of the most recent LUST list identifies no registered LUST facilities on the subject site
and no registered LUST facilities within the approximate minimum search distance of % mile
from the subject site. LUSTs are also listed in the CORTESE database. LUST facilities located
greater than 1/4 mile from and cross or down gradient from the subject site are generally not
considered to be environmental concerns to the subject site.
Solid Waste Facilities/Landfills (SWF/LF)
Solid waste records typically contain an inventory of solid waste disposal facilities or landfills in
a particular state. Depending on the state, these may be active or inactive facilities or open
dumps that failed to meet RCRA Section 2004 criteria for solid waste landfills or disposal sites.
Review of the.most recent SWF/LF list identified no SWF /LF facilities within the approximate
minimum search distance of % mile from the subject site.
Cal -Sites (A WP)
The AWP (Annual Work Plan) contains a listing of all verified hazardous waste sites that are or
will be targeted for abatement by the California Environmental Protection -Agency (CAL -EPA)
under the Hazardous Substance Cleanup Bond Act of 1984 (California Health and Safety Code
Section 25356) and the Hazardous Substances Account (HSA).
Hazardous waste sites may be discovered by the CAL -EPA directly or be referred to the CAL -
EPA for confirmation and follow -up action by another government agency, such as a local health
department, a California Regional Water Quality Control Board (RWQCB), a responsible party
or a concerned citizen. New sites are added to this database as they are verified and the
"Preliminary Assessment, Site Investigation and Hazard Ranking System" processes are
completed.
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 14
Review of the latest Cal -Sites AWP listing identifies no AWP sites within the approximate
minimum search distance of 1 mile from the subject site.
Cal -Sites (ASPIS)
Developed under section 25359.6 of the California Health and Safety Code, the CAL -EPA
Department of Toxic Substances Control (DTSC) maintains a listing of potential and known
hazardous waste sites, under the Department of Toxic Substances Control Program (TSCP). The
RWQCB's, Department of Fish and Game and other state environmental regulatory agencies'
TSCP staffs also review historical land -use data sources to generate lists of potentially
contaminated sites.
Cal -Sites (ASPIS) combines the former ASPIS (Abandoned Sites Program Information System)
and BEP (Bond Expenditure Plan -or State Superfund List) hazardous waste site databases.
Information concerning most of these sites should be considered preliminary; most confirmed
sites from this database are merged into the AWP database once they have been hazard ranked.
This database currently contains more than 26,000 sites in the State of California. Many of these
sites are currently identified as requiring no further action (NFA) based on a TSCP determination
that no release had occurred, or, if a release may have occurred, it did not represent a significant
threat to the public or the environment.
Review of the latest ASPIS listing identifies no ASPIS sites within the approximate minimum
search distance of 1 mile from the subject site.
California Hazardous Material Incident Reporting System (CI- MIRS)
The California Office of Emergency Services database contains reported information on
incidents involving accidental releases or spills of hazardous materials.
Review of the latest CHMIRS listing indicates that the subject site is not identified.
Hazardous Waste and Substances Sites List (CORTESE)
The Cal -EPA publishes a listing of potential and confirmed hazardous waste sites throughout the
State of California. Under California Government Code Section 65962.5, these sites are
submitted to the Cal -EPA by the State Department of Health Services, State Water Resources
Control Board, the Integrated Waste Management Board and the Department of Toxic
Substances Control.
The database identifies public drinking water wells with detectable levels of contamination,
hazardous substance sites selected for remedial action, sites with known toxic material identified
through the abandoned site assessment program, sites with USTs having a reportable release, and
all solid waste disposal facilities from which there is a known migration.
Review of the latest listing of CORTESE sites identifies no CORTESE sites within the
approximate minimum search distance of /Z mile from the subject site.
Notl 65
California's Proposition 65 requires that notifications be made to the California Water Resources
Control Board about any release that could have an adverse impact on drinking water and
thereby expose the public to a potential health risk.
Review of the latest Notify 65 list identifies no Notify 65 sites within the approximate minimum
search distance of 1 mile from the subject site.
TOXIC Pits
The Toxic Pits database identifies sites that are suspected of containing hazardous substances
where cleanup has not been completed. The information is supplied by the California Water
Resources Control Board.
Review of the latest Toxic Pits list identifies no Toxic Pits sites within the approximate
minimum search distance of 1 mile from the subject site.
Waste Management Unit Database System (WMUDS /SWAT)
The California Integrated Waste Management Board Maintains an inventory list of both open as
well as closed and inactive solid waste disposal facilities and transfer stations in accordance with
the Solid Waste Management and Resource Recovery Act of 1972, California Government Code
Section 2.66790(b). Generally, the California Integrated Waste Management Board learns of
locations of disposal facilities through permit applications and from local enforcement agencies.
The Waste Management Unit Database System is used by the California Water Resources
Control Board and the Regional Water Quality Control Boards for program tracking and
inventory of waste management units.
Review of the latest WMUDS /SWAT listing identifies no WMUDS /SWAT facilities within the
approximate minimum search distance of %Z mile from the subject site.
Hazardous Waste Information System (HAZNEn
The California Department of Health Services, Toxic Substances Control Division, has
developed and maintained lists of hazardous waste generators and hazardous waste treatment,
storage and disposal facilities in the State of California, in accordance with the Hazardous Waste
Control Law (California Health and Safety Code Section 25100 et seq.) and the Hazardous
Waste Management Act of 1976 (California Health and Safety Code Section 25179.1 et seq.).
Inclusion of a facility in the HAZNET list is not necessarily an indication of an environmental
problem.
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 16
Additionally, the California Health and Safety Code requires all counties to prepare and submit
hazardous waste management plans. To assist the counties, the Toxic Substances Control
Division maintains lists containing hazardous waste generation and disposal data within each
county. This information has been assembled by the Toxic Substances Control Division from
manifest reports required from hazardous waste generators. This database currently lists over
20,000 facilities in the State of California.
Review of the latest HAZNET listing identifies no HAZNET facilities on the subject site or
adjoining properties.
Manufactured Gas Plants
Manufactured Gas Plants produced combustible gas for urban use prior to the widespread use
and pipeline distribution of natural gas in the 1950s. The main fuels used in production of this
gas were coke, coal and oil; the by- products of this manufacturing process include a variety of
tars, sludge and other chemicals.
MGP sites tend to have subsurface contamination due to the common practice of disposing of the
waste products on site. The EDR report identified no MGP sites within the approximate
minimum search distance of 1 mile from the subject site.
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 17
VII, ASTIVI NON -SCOPE ITEMS
Asbestos
The subject site was vacant land at the time of Eckland's site visit. However, there is an
aboveground water tank of unknown size with a paved road located in the southeast corner of the
site. During the site visit, Eckland observed reasonably accessible exterior areas for building
materials and debris that may be suspect asbestos- containing materials (ACM); the observed
building materials (the aboveground water storage tank) were not suspected of containing ACM.
Lead Based Paint
The subject site was vacant land at the time of Eckland's site visit. However, there is an
aboveground water tank of unknown size with a paved road located in the southeast corner of the
site. During the site visit, Eckland observed reasonably accessible areas of the site for building
materials and debris that may be covered with suspect lead -based paint (LBP); the observed
building materials (the aboveground water storage tank) were not suspected of containing LBP.
Lead in Drinking Water
The subject site was vacant land at the time of Eckland's site visit. However, there is an
aboveground water tank of unknown size with a paved road located in the southeast corner of the
site. The water in the tank supplies water to the residential development to the south of the
subject site. No water is currently being provided to the subject site.
Radon Gas
Radon gas is a naturally occurring, colorless, odorless gas that is the by- product of the decay of
radioactive materials found within bedrock and soil. Radon gas enters buildings. through cracks,
structural joints, and plumbing openings in floor levels that are in direct contact with the soil.
Radon gas, when inhaled, has been found to be carcinogenic in some humans. The U.S. EPA -
recommended action level for radon gas is 4.0 pCi/L (picoCuries per liter).
The- State of California, in conjunction with the U.S. EPA, has conducted residential screening
tests in Alameda County. Radon information for Alameda County, supplied by EDR, indicates
an average basement radon level in ZIP code 94550 of 0.567 pCi/L, with 100% of tests less than
4.0 pCi/L. Based on U.S. EPA screening, Alameda County is within radon zone 2, according to
the U.S. EPA. Counties within radon zone 2 have a predicted average indoor radon gas screening
level of between 2.0 and 4.0 pCi/L.
Although the literature reviewed indicates a statistical occurrence of radon gas, considering that
the property is nonresidential and no basements are present, it is our opinion that the risk of
radon gas accumulation is not a significant environmental concern at the subject site.
(+ H LA
Phase 1 Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 19
Wetlands
Eckland observed pockets of ponded water, flowing water, saturated soils or hydrophytic
vegetation at the subject site. However; wetlands are beyond the scope of the Phase I
Environmental Site Assessment Report.
The subject site was vacant land at the time of Eckland's site visit. However, there is a water tank
of unknown size with a paved road located in the southeast corner of the site. During the site
visit, Eckland observed reasonably accessible areas of the site for building materials and debris
that may be covered with mold; no mold was observed at the subject site.
30 c�
Phase I Environmental Site Assessment July 17, 2003
Redgewick Property Comm. No. 2003 -03431 -0002
Livermore, California Page 19
VIII. CONCLUSIONS AND RECOMMENDATIONS
Historical Recognized Environmental Conditions (HRECs
Based on site observations, interviews and review of available documents and the database
records search, Eckland concludes that no HRECs were identified at the subject site. Eckland
recommends no additional investigation at this time.
Current Recognized Environmental Conditions (RECs)
Based on site observations, interviews and review of available documents and the database
records search, Eckland concludes that no RECs were identified at the subject site. Eckland
recommends no additional investigation at this time.
Phase I Environmental Site Assessment
Redgewick Property
Livermore, California
IX. INTERVIEWS
Name Title/Affiliation
Mr. Martin Inderbitzen Attorney at Law
Ms. Leslie Litton File Clerk
Alameda County Fire Department
Ms. Roseanna Garcia File Clerk
Alameda County Department
of Environmental Health
July 17, 2003
Comm. No. 2003- 03431 -0002
Page 20
Phone
(925) 485 -1060
(510) 670 -5853
(510) 567 -6780
phase I Environmental Site Assessment Comm. No. 2003 -03431 -0002
Redgewick Property
Livermore, California page 1
1. View of the subject site from the western side of the property looking to the
northeast.
2. View of the subject from the western side of the property looking east/southeast.
3. View of the subject from the western side of the property looking southeast.
4. View of the subject from the western side of the property looking southeast.
7. View of the subject from the western side of the property looking south.
The EDR Radius Map
with GeoCheck®
Project: 2003- 03431 -0002
Redgewick Property
East Side of Tassajara Rd
Livermore, CA 94550
Inquiry Number: 11010443.3p
July 10, 2003
3ia Q�y�o
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TABLE OF CONTENTS
SECTION
313
PAGE
Executive Summary __ ______ _________ ______ __ ___ _____ - -- ESi
-----------------
DetailMap -------------------------------------------------------------- 2
Map Findings Summary ____ ____________ _ _ _ ___ -__. 3
------------------- - - - - --
MapFindings---------------------------------------------------- - - - - -- 5
EDR Proprietary Historical Map Findings---------- ------ -------- -------- - - -- -. 6
Orphan Summary ------------------------------------------------- - - - - -- 7
Government RecordsSearched/ DataCurrencyTracking --- ------- ----- ----- ------ GR -1
GEOCHECK ADDENDUM
Physical Setting Source Addendum------------------- ---------- ------ - - - - -- A -1
Physical Setting Source Summary ------------------------------------------- A -2
Physical Setting Source Map------------- - - - - -: ------------------- - - - - -- A -7
Physical Setting Source Map Findings-------------------- ---- -- ----- -- -- -- -- A -8
Physical Setting Source Records Searched----- ----- -- -- ------ ----- --- -- - - - - -. A -10
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TC11010443.3p Pagel
311 �-�lyo
EXECUTIVE SUMMARY
A search of available environmental records was conducted by Environmental Data Resources, Inc.
(EDR). The report meets the government records search requirements of ASTM Standard Practice for
Environmental Site Assessments, E 1527 -00. Search distances are per ASTM standard or custom
distances requested by the user.
TARGET PROPERTY INFORMATION
ADDRESS
EAST SIDE OF TASSAJARA RD
LIVERMORE, CA 94550
COORDINATES
Latitude (North):
Longitude (West):
Universal Tranver
UTM X (Meters):
UTM Y (Meters):
Elevation:
37.734640 - 37'44'4.7"
121.861450 - 121- 51' 41.2"
3e Mercator: Zone 10
600324.9
4176778.5
598 ft. above sea level
USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY
Target Property. 2437121 -F7 LIVERMORE, CA
Source: ' USGS 7.5 min quad index
TARGET PROPERTY SEARCH RESULTS
The target property was not listed in any of the databases searched by EDR.
DATABASES WITH NO MAPPED SITES
No mapped sites were found in EDR's search of available ( "reasonably ascertainable ") government
records either on the target property or within the ASTM E 1527 -00 search radius around the target
property for the following databases:
FEDERAL ASTM STANDARD
NPL------ ------------ - - - - -- National Priority List
Proposed NPL--- ----- -- - - -. Proposed National Priority List Sites
CERCLIS--- -- --------- - - - - -- Comprehensive Environmental Response, Compensation, and Liability Information
System
CERC- NFRAP---- -- --- - - - - -- CERCLIS No Further Remedial Action Planned
CORRACTS ----------------- Corrective Action Report
RCRIS- TSD- ----- ------ - - - - -- Resource Conservation and Recovery Information System
RCRIS- LQG----------- - - - - -- Resource Conservation and Recovery Information System
RCRIS-SQG----------------- Resource Conservation and Recovery Information System
ERNS- -------- --------- - - ---- Emergency Response Notification System
STATE ASTM STANDARD
AWP ------------------------- Annual Workplan Sites
TC11010443.3p EXECUTIVE SUMMARY 1
315 �f- y�o
EXECUTIVE SUMMARY
Cal-Sites --------------------
Caisites Database
CHMIRS_____________________
California Hazardous Material Incident Report System
_ ___________________. "Cortese" Hazardous Waste & Substances Sites List
Cortese ------------------------ Cortese"
Notify 65 ---------------------
Proposition 65 Records
Toxic Pits___________________
Toxic Pits Cleanup Act Sites
SWF/LF ----------------------
Solid Waste Information System
WMUDSISWAT______________
Waste Management Unit Database
LUST_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Leaking Underground Storage Tank Information System
CA BOND EXP. PLAN______
Bond Expenditure Plan
UST_________________________
List of Underground Storage Tank Facilities
VCP_________________________
Voluntary Cleanup Program Properties
INDIAN UST_________________
Underground Storage Tanks on Indian Land
CAFID UST_________________
Facility Inventory Database
HIST UST____________________
Hazardous Substance Storage Container Database
FEDERAL ASTM SUPPLEMENTAL
CONSENT___________________ Superfund (CERCLA) Consent Decrees
ROD_________________________
Records Of Decision
Delisted NPL.---------------
National Priority List Deletions
FINDS_______________________
Facility Index System/Facility Identification Initiative Program Summary Report
HMIRS_______________________
Hazardous Materials Information Reporting System
MLTS________________________
Material Licensing Tracking System
MINES______________________ _
Mines Master Index File
NPL Liens___________________
Federal Superfund Liens
PADS________________________
PCB Activity Database System
DOD_________________________
Department of Defense Sites
RAATS______________________
RCRA Administrative Action Tracking System
TRIS-------------------------
Toxic Chemical Release Inventory System
TSCA_______________________
Toxic Substances Control Act
SSTS________________________
Section 7 Tracking Systems
FTTS________________________
FI FRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, &
Rodenticide Act)/TSCA (Toxic Substances Control Act)
STATE OR LOCAL ASTM SUPPLEMENTAL
AST_________________________
Aboveground Petroleum Storage Tank Facilities
CLEANERS ------------------
Cleaner Facilities
CA WDS_____________________
Waste Discharge System
DEED ------------------------
List of Deed Restrictions
SCH ------------------------- School Property Evaluation Program
REF_________________________
Unconfirmed Properties Referred to Another Agency
NFA_________________________
No Further Action Determination
NFE____ ____________________
Properties Needing Further Evaluation
CA SLIC_____________________
Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
HAZNET_____________________
Hazardous Waste Information System
BROWNFIELDS DATABASES
vCP ------------------ _------ Voluntary Cleanup Program Properties
EDR PROPRIETARY HISTORICAL DATABASES
See the EDR Proprietary Historical Database Section for details
TC11010443.3p EXECUTIVE SUMMARY 2
EXECUTIVE SUM-MARY
SURROUNDING SITES: SEARCH RESULTS
Surrounding sites were not identified.
Unmappabie (orphan) sites are not considered in the foregoing analysis.
EDR PROPRIETARY HISTORICAL DATABASES
See the EDR Proprietary Historical Database Section for details
TC11010443.3p EXECUTIVE SUMMARY 3
EXECUTIVE SUMMARY
Due to poor or inadequate address information, the following sites were not mapped:
Site Name
PG &E GAS PLANT LIVERMORE
CALIFORNIA WATER SERV WELL #10 -01
DEL VALLE RESERVOIR DS
MARCIEL RANCH LANDSPREADING
DITCH +CULVERT PROPERTY OWNER
?;'n of LAO()
Database(s)
CERC -NFRAP
CERC -NFRAP
SWFILF
SWFILF
ERNS
TC11010443.3p EXECUTIVE SUMMARY 4
MAP FINDINGS SUMMARY
STATE ASTM STANDARD
AWP
Search
Cal -Sites
1.250
CHMIRS
0.500
Cortese
0.750
Target
Distance
Toxic Pits
1.250
State Landfill
0.750
WMUDS /SWAT
Total
Database Property
(Miles)
< 118
1/8-1/4
1/4-1/2
1/2-1
> 1
Plotted
FEDERAL ASTM STANDARD
TP
CA FID UST
0.500
HIST UST
TP
FEDERAL ASTM SUPPLEMENTAL
0
NPL
1,250
0
0
0
0
0
0
Proposed NPL
TP
NR
NR
NR
NR
NR
0
CERCLIS
0.750
0
0
0
0
NR
0
CERC -NFRAP
0.750
0
0
0
0
NR
0
CORRACTS
1.250
0
0
0
0
0
0
RCRIS -TSD
1.250
0
0
0
0
0
0
RCRIS Lg. Quan. Gen.
0.500
0
0
0
NR
NR
0
RCRIS Sm. Quan. Gen.
0.500
0
0
0
NR
NR
0
ERNS
0.500
0
0
0
NR
NR
0
STATE ASTM STANDARD
AWP
1.250
Cal -Sites
1.250
CHMIRS
0.500
Cortese
0.750
Notify 65
1.250
Toxic Pits
1.250
State Landfill
0.750
WMUDS /SWAT
0.750
LUST
0.750
CA Bond Exp. Plan
1.250
UST
0.500
VCP
0.750
INDIAN UST
TP
CA FID UST
0.500
HIST UST
TP
FEDERAL ASTM SUPPLEMENTAL
0
CONSENT
1.250
ROD
1.250
Delisted NPL
1.250
FINDS
0.500
HMIRS
0.500
MLTS
0.500
MINES
TP
NPL Liens
1.250
PADS
0.500
DOD
TP
RAATS
0 -500
TRIS
0,500
TSCA
0.500
SSTS
TP
FTTS
TP
STATE OR LOCAL ASTM SUPPLEMENTAL
NR
AST.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NR
NR
0
0
0
0
0
NR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NR
0
0
0
0
0
NR
0
0
0
0
0
NR
0
0
0
0
0
0
0
0
0
0
NR
NR
0
0
0
0
0
NR
0
NR
NR
NR
NR
NR
0
0
0
0
NR
NR
0
NR
NR
NR
NR
NR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NR
NR
0
0
0
0
NR
NR
0
0
0
0
NR
NR
0
NR
NR
NR
NR
NR
0
0
0
0
0
0
0
0
0
0
NR
NR
D
NR
NR
NR
NR
NR
0
0
0
0
NR
NR
0
0
0
0
NR
NR
0
0
0
0
NR
NR
0
NR
NR
NR
NR
NR
0
NR
NR
NR
NR
NR
0
TP NR NR
NR NR NR 0
TC11010443.3p Page 3
Of p
DETAIL MAP - 11010443.3p - Eckland Consultants, Inc.
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Target Property
A Sites at elevations higher than
or equal to the target property
• Sites at elevations lower than
the target property
J Coal Gasification Sites
Historical Gas Stations I Historical Dry Cleaners
See the EDR Proprietary Historical Map Findings
r Sensitive Receptors
National Priority list Sites
Landfill Sites
Dept. Defense Sites
0 1B 114 irs .suns
County Boundary Areas of Concern
Oil & Gas pipelines
® 100 -year flood zone
© 500-year flood zone
Federal Wetlands
TARGET PROPERTY:
Redgewick Property
CUSTOMER:
Eckland Consultants, Inc.
ADDRESS:
East Side of Tassajara Rd
CONTACT:
Tim Casey
CITYISTATE2IP:
Livermore CA 94550
INQUIRY #:
11010443.3p
LATILONG:
37.7346 1 121.8615
DATE:
July 10, 2003 7:43 pm
l:;W ht o 2003 EDR, I= 0 2003 6DT. Ix R.I. 0712002 AN Rights R...rv.d.
Sao °� Hilo
DETAIL MAP - 11O1O443.3p - Eckland Consultants, Inc.
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9
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Target Property
A
Sites at elevations higher than
or equal to the target property
County Boundary Areas of Concern
•
Sites at elevations lower than
age Oil & Gas pipelines
Tim Casey
the target property
� 10o -year flood zone
1
Coal Gasification Sites
© 5otl -year flood zone
,j
Historical Gas Stations! Historical Dry Cleaners
DATE:
See the EDR Proprietary Historical Map Findings
Federal Wetlands
X
Sensitive Receptors
Copyright 0 2003 EDK Inc, O 2003 GOT, Inc. Rd GUAM AS flights Reamed.
National Priority List Sites
Landfill Sites
Dept. Defense Sites
TARGET PROPERTY:
Redgewick Property
CUSTOMER:
Eckland Consuftants, Inc.
ADDRESS:
East Side of Tassajara Rd
CONTACT:
Tim Casey
CITY /STATEIZIP:
Livermore CA 94550
INQUIRY #:
11010443.3p
LAT/LONG:
37.73461121.8615
DATE:
Jufy 10, 2003 7:43 pm
Copyright 0 2003 EDK Inc, O 2003 GOT, Inc. Rd GUAM AS flights Reamed.
C- —.6 -z
DETAIL MAP - 11010443.3p - Eckland Consultants, Inc.
o.
O
O
Im 114 12 Miles
Target Property
Sites at elevations higher than
or equal to the target property
• Sites at elevations lower than
the target property
■ Coal Gasification Sites
Historical Gas Stations I Historical Dry Cleaners
See the EDR Proprietary Historical Map Findings
-C Sensitive Receptors
Naflonal Priority List Sites
Landfill Sites
Dept. Defense Sites
6 ------------
County Boundary RM Areas of Concern
Oil & Gas pipelines
F7/] 100-year flood zone
500-year flood zone
Federal Wetlands
TARGET PROPERTY:
Redgevvick Property
CUSTOMER:
EcIdand Consultants, Inc,
ADDRESS:
East Side of Tassajara Rd
CONTACT:
Tim Casey
CITY/STATEfZJP:
Livermore CA 94550
INQUIRY #:
11010443.3p
LAT/LONG:
37.7346 /121.8615
DATE:
July 10, 2003 7:43 pm
Copyright C- 2003 EDR. tat 0 2003 GOL Inc. Rai. 07MIZ All Rights Reserved.
Gas Statlons/Dry Cleaners 0.250 0 0
Coal Gas 1.250 0 0
BROWNFIELDS DATABASES
VCP 0.750 0 0
NOTES:
See the EDR Proprietary Historical Database Section for details
TP = Target Property
NR = Not Requested at this Search Distance
Sites may be listed in more than one database
NR
Search
NR 0
Target . Distance
Database
Property (Miles)
CLEANERS
TP
CA WDS
0.500
DEED
TP
SCH
TP
REF
TP
NFA
TP
NFE
TP
CA SLIC
0.750
HAZNET
0.500
EDR PROPRIETARY HISTORICAL DATABASES
Gas Statlons/Dry Cleaners 0.250 0 0
Coal Gas 1.250 0 0
BROWNFIELDS DATABASES
VCP 0.750 0 0
NOTES:
See the EDR Proprietary Historical Database Section for details
TP = Target Property
NR = Not Requested at this Search Distance
Sites may be listed in more than one database
NR
NR
NR 0
0
0
Total
< 118
1/8-114
1/4-1/2
112-1
> 1
Plotted
NR
NR
NR
NR
NR
0
0
0
0
NR
NR
0
NR
NR
NR
NR
NR
0
NR
NR
NR
NR
NR
0
NR
NR
NR
NR
NR
0
NR
NR
NR
NR
NR
0
Nq
NR
NR
NR
NR
0
0
0
0
0
NR
0
0
0
0
NR
NR
0
Gas Statlons/Dry Cleaners 0.250 0 0
Coal Gas 1.250 0 0
BROWNFIELDS DATABASES
VCP 0.750 0 0
NOTES:
See the EDR Proprietary Historical Database Section for details
TP = Target Property
NR = Not Requested at this Search Distance
Sites may be listed in more than one database
NR
NR
NR 0
0
0
0 0
0
0
NR 0
TC11010443.3p Page 4
323 +��lo
Map ID MAP FINDINGS
Direction
Distance
Distance (ft.) EDR ID Number
Elevation Site Database(s) EPA ID Number
`.I�11��Iir��;�I�1►I�7
TC11010443.3p Page 5
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GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agency
on a monthly or quarterly basis, as required.
Elapsed ASTM days: Provides confirmation that this EDR report meets or exceeds the 90-day updating requirement
of the ASTM standard.
FEDERAL ASTM STANDARD RECORDS
NPL: National Priority List
Source: EPA
Telephone: N/A
National Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for priority
cleanup under the Superfund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygon
coverage for over 1,000 NPL site boundaries produced by EPA's Environmental Photographic Interpretation Center
(EPIC) and regional EPA offices.
Date of Govemment Version: 04/30/03 Date of Data Arrival at EDR: 05/05103.
Date Made Active at EDR: 06/02/03 Elapsed ASTM days: 28
Database Release Frequency: Semi - Annually Date of Last EDR Contact: 05/09/03
NPL Site Boundaries
Sources:
EPA's Environmental Photographic Interpretation Center (EPIC)
Telephone: 202 -564 -7333
EPA Region 1
Telephone 617 -918 -1143
EPA Region 3
Telephone 215 - 814 -5418
EPA Region 4
Telephone 404 -562 -8033
Proposed NPL: Proposed National Priority List Sites
Source: EPA
Telephone: N/A
Date of Government Version: 04/30/03
Date Made Active at EDR: 06/02/03
Database. Release Frequency: Semi - Annually
EPA Region 6
Telephone: 214 - 655 -6669
EPA Region 8
Telephone: 303 - 312 -6774
Date of Data Arrival at EDR: 05/05/03
Elapsed ASTM days: 28
Date of Last EDR Contact: 05105/03
CERCLIS: Comprehensive Environmental Response, Compensation, and Liability Information System
Source: EPA
Telephone: 703 -413 -M3
CERCLIS contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities,
private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation,
and Liability Act ( CERCLA). CERCLIS contains sites which are either proposed to or on the National Priorities
List (NPL) and sites which are in the screening and assessment phase for possible inclusion on the NPL
Date of Government Version: 03/19103 Date of Data Arrival at EDR: 03/24103
Dale Made Active at EDR: 04/08/03 Elapsed ASTM days: 15
Database Release Frequency: Quarterly Date of Lest EDR Contact: 06/23/03
CERCLIS- NFRAP: CERCLIS No Further Remedial Action Planned
Source: EPA
Telephone: 703- 413 -0223
As of February 1995, CERCLIS sites designated "No Further Remedial Action Planned" ( NFRAP) have been removed
from CERCLIS. NFRAP sites maybe sites where, following an initial investigation, no contamination was found,
contamination was removed quickly without the need for the site to be placed on the NPL, or the contamination
was not serious enough to require Federal Superfund action or NPL consideration. EPA has removed approximately
25,000 NFRAP sites to lift the unintended barriers to the redevelopment of these properties and has archived them
as historical records so EPA does not needlessly repeat the investigations in the future. This policy change is
part of the EPA's Brownfields Redevelopment Program to help cities, states, private investors and affected citizens
to promote economic redevelopment of unproductive urban sites.
TC11010443.3p Page GR -1
3a-1 Of �110
GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 03/19/03
Date Made Active at EDR: 04108/03
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 03!24103
Elapsed ASTM days: 15
Date of Last EDR Contact: 06/23103
CORRACTS: Corrective Action Report
Source: EPA
Telephone: 800 - 424 -9346
CORRACTS identifies hazardous waste handlers with RCRA corrective action activity.
Date of Government Version: 03/31103
Date Made Active at EDR: 05108/03
Database Release Frequency: Semi - Annually
Date of Data Arrival at EDR: 04/07/03
Elapsed ASTM days: 31
Date of Last EDR Contact: 06109/03
RCRIS: Resource Conservation and. Recovery Infomrafion System
Source: EPAINTIS
Telephone: 800424 -9346
Resource Conservation and Recovery Information System. RCRIS includes selective information on sites which generate,
transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery
Act (RCRA).
Date of Government Version: 05109/03 Date of Data Arrival at EDR: 05/09103
Date Made Active at EDR: 07/01/03 Elapsed ASTM days: 53
Database Release Frequency: Varies Date of Last EDR Contact: 06/26/03
ERNS: Emergency Response Notification System
Source: National Response Center, United States Coast Guard
Telephone: 202 - 260 -2342
Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous
substances.
Date of Government Version: 12/31/02 Date of Data Arrival at EDR: 01127/03
Date Made Active at EDR: 02!03/03 Elapsed ASTM days: 7
Database Release Frequency: Annually Date of Last EDR Contact: 04/28103
FEDERAL ASTM SUPPLEMENTAL RECORDS
SRS: Biennial Reporting System
Source: EPA/NTIS
Telephone: 800 -424 -9346
The Biennial Reporting System is a national system administered by the EPA that collects data on the generation
and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG)
and Treatment, Storage, and Disposal Facilities.
Date of Govemment Version: 12/31/99
Database Release Frequency: Biennially
Date of Last EDR Contact: 06/16/03
Date of Next Scheduled EDR Contact: 09/15/03
CONSENT: Superfund (CERCLA) Consent Decrees
Source: EPA Regional Offices
Telephone: Varies
Major legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Released
periodically by United States District Courts after settlement by parties to litigation matters.
Date of Government Version: N/A
Database Release Frequency: Varies
Date of Last EDR Contact: N/A
Date of Next Scheduled EDR Contact: N/A
ROD: Records Of Decision
Source: EPA
Telephone: 703 - 416 -0223
Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical
and health information to aid in the cleanup.
TC11010443.3p Page GR -2
GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRA CKING
Date of Government Version: 01/09/03
Database Release Frequency: Annually
Date of Last EDR Contact: 04/07103
Date of Next Scheduled EDR Contact: 07/07/03
DELISTED NPL: National Priority List Deletions
Source: EPA
Telephone: NIA
The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the
EPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sitbs may be deleted from the
NPL where no further response is appropriate.
Date of Government Version: 04/30/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 05105103
Date of Next Scheduled EDR Contact: 08/04/03
FINDS: Facility Index System/Facitity Identification initiative Program Summary Report
Source: EPA
Telephone: NIA
Facility Index System. FINDS contains both facility information and 'pointers' to other sources that contain more
detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometdc
Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial
enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), GDOCKET (Criminal
Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities
information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System).
Date of Government Version: 03/19/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 04 /07/03
Date of Next Scheduled EDR Contact: 07107/03
HMIRS: Hazardous Materials Information Reporting System
Source: U.S. Department of Transportation
Telephone: 202-366-4555
Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT.
Date of Government Version: 01/31/03
Database Release Frequency: Annually
Date of Last EDR Contact: 04/30/03
Date of Next Scheduled EDR Contact: 07/21103
MLTS: Material Licensing Tracking System
Source: Nuclear Regulatory Commission
Telephone: 301 -415 -7169
MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which
possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency,
EDR contacts the Agency on a quarterly basis.
Date of Government Version: 04/23/03
Database Release Frequency: Quarterly
MINES: Mines Master Index File
Source: Department of Labor, Mine Safety and Health Administration
Telephone: 303 - 231 -5959
Date of Government Version: 03/11/03
Database Release Frequency: Semi- Annually
Date of Last EDR Contact: 04 /07/03
Date of Next Scheduled EDR Contact: 07107/03
Date of Last EDR Contact: 03131103
Date of Next Scheduled EDR Contact: 06/30/03
NPL LIENS: Federal Superfund Liens
Source: EPA
Telephone: 205 - 564 -4267
Federal Superfund Liens. Under the authority granted the USEPA by the Comprehensive Environmental Response, Compensation
and Liability Act (CERCLA) of 1980, the USEPA has the authority to file liens against real property in order
to recover remedial action expenditures or when the property owner receives notification of potential liability.
USEPA compiles a listing of filed notices of Superfund Liens.
TC11010443.3p Page GR -3
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GOVER'N�IIIENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 10/15191
Database Release Frequency: No Update Planned
Date of Last EDR Contact: 05/27103
Date of Next Scheduled EDR Contact: 08125/03
PADS: PCB Activity Database System
Source: EPA
Telephone: 202 -564 -3887
PCB Activity Database. PADS Identifies generators, transporters, commercial storers andlor brokers and disposers
of PCB's who are required to notify the EPA of such activities.
Date of Government Version: 03/26/03
Database Release Frequency: Annually
Date of Last EDR Contact: 05112103
Date of Next Scheduled EDR Contact: 08/11/03
DOD: Department of Defense Sites
Source: USGS
Telephone: 703 -648 -5920
This data set consists of federally owned or administered lands, administered by the Department of Defense, that
have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin islands.
Date of Government Version: 04/01/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 05/12/03
Date of Next Scheduled EDR Contact: 08/11103
RAATS: RCRA Administrative Action Tracking System
Source: EPA
Telephone: 202 - 564 -4104
RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA
pertaining to major violators and includes administrative and civil actions brought by the EPA, For administration
actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of
the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources
made it impossible to continue to update the information contained in the database,
Date of Government Version: 04/17/95
Database Release Frequency: No Update Planned
Date of Last EDR Contact: 06/09/03
Date of Next Scheduled EDR Contact: 09/08103
TRIS: Toxic Chemical Release Inventory System
Source: EPA
Telephone: 202 - 260 -1531
Toxic Release Inventory System- TRIS identifies facilities which release toxic chemicals to the air, water and
land In reportable quantities under SARA Tittle III Section 313.
Date of Government Version: 12/31100
Database Release Frequency: Annually
Date of Last EDR Contact: 06/27103
Date of Next Scheduled EDR Contact: 09/22103
TSCA: Toxic Substances Control Act
Source: EPA
Telephone: 202 - 260 -5521
Toxic Substances Control Act. TSCA identities manufacturers and importers of chemical substances included on the
TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant
site.
Date of Government Version: 12/31/98
Database Release Frequency: Every 4 Years
Date of Last EDR Contact: 06f09/03
Date of Next Scheduled EDR Contact: 09/08/03
FITS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)1TSCA (Toxic Substances Control Act)
Source: EPA
Telephone: 202 -564 -2501
Date of Government Version: 04/15/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 06123/03
Date of Next Scheduled EDR Contact: 09/22103
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
SSTS: Section 7 Tracking Systems
Source: EPA
Telephone: 202 - 564 -5008
Section 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires all
registered pesticide- producing establishments to submit a report to the Environmental Protection Agency by March
1 st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devices
being produced, and those having been produced and sold or distributed in the past year.
Date of Government Version: 12!31100
Database Release Frequency: Annually
Date of Last EDR Contact: 05/09/03
Date of Next Scheduled EDR Contact:- 07/21/03
FITS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)
Source: EPA/Office of Prevention, Pesticides and Toxic Substances
Telephone: 202- 564 -2501
FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA,
TSCA and EPCRA (Emergency Planning and Community Right -to -Know Act). To maintain currency, EDR contacts the
Agency on a quarterly basis.
Date of Government Version: 04/15/03
Database Release Frequency: Quarterly
STATE OF CALIFORNIA ASTM STANDARD RECORDS
Date of Last EDR Contact: 06/23/03
Date of Next Scheduled EDR Contact: 09122/03
AWP: Annual Workplan Sites
Source: California Environmental Protection Agency
Telephone: 916- 323 -3400
Known Hazardous Waste Sites. California DTSC's Annual Workplan (AWP), formerly BEP, Identifies known hazardous
substance sites targeted for cleanup.
Date of Government Version: 03131/03
Date Made Active at EDR: 04/25/03
Database Release Frequency: Annually
Date of Data Arrival at EDR: 04/07/03
Elapsed ASTM days: 18
Date of Last EDR Contact: 04/07103
CAL-SITES: Calsites Database
Source: Department of Toxic Substance Control
Telephone: 916- 323 -3400
The Calsites database contains potential or confirmed hazardous substance release properties. In 1996, California
EPA reevaluated and significantly reduced the number of sites in the Calsites database.
Date of Government Version: 04/28/03
Date Made Active at EDR: 06123/03
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 06/02/03
Elapsed ASTM days: 21
Date of Last EDR Contact; 06/02/03
CHMIRS: California Hazardous Material Incident Report System
Source: office of Emergency Services
Telephone: 916 - 845 -8400
California Hazardous Material Incident Reporting System. CHMIRS contains information on reported hazardous material
incidents (accidental releases or spills).
Date of Government Version: 12/31/01
Date Made Active at EDR: 01/15103
Database Release Frequency: Varies
Date of Data Arrival at EDR: 12102/02
Elapsed ASTM days: 44
Date of Last EDR Contact: 05/27/03
CORTESE: "Cortese" Hazardous Waste & Substances Sites List
Source: CAL EPA/Office of Emergency Information
Telephone: 916- 323 -9100
The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste
Board (SWF /LS), and the Department of Toxic Substances Control (Cal--Sites).
TC11010443.3p Page GR -5
GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 04/01/01
Date Made Active at EDR: 07/26/01
Database Release Frequency: No Update Planned
Date of Data Arrival at EDR: 05/29/01
Elapsed ASTM days: 58
Date of Last EDR Contact: 04/29/03
NOTIFY 65: Proposition 65 Records
Source: State Water Resources Control Board
Telephone: 916 -445 -3846
Proposition 65 Notification Records. NOTIFY 65 contains facility notifications about any release which could impact
drinking water and thereby expose the public to a potential health risk.
Date of Government Version: 10121193
Date Made Active at EDR: 11/19/93
Database Release Frequency: No Update Planned
Date of Data Arrival at EDR: 11/01/93
Elapsed ASTM days: 18
Date of Last EDR Contact: 04/21/03
TOXIC PITS: Toxic Pits Cleanup Act Sites
Source: State Water Resources Control Board
Telephone: 916- 227.4364
Toxic PITS Cleanup Act Sites. TOXIC PITS identifies sites suspected of containing hazardous substances where cleanup
has not yet been completed.
Date of Government Version: 07/01/95
Date Made Active at EDR: 09/26/95
Database Release Frequency. No Update Planned
Date of Data Arrival at EDR: 08!30195
Elapsed ASTM days: 27
Date of Last EDR Contact: 05105/03
SWFILF (SWIS): Solid Waste Information System
Source: Integrated Waste Management Board
Telephone: 916- 341 -6320
Active, Closed and Inactive Landfills. SWFILF records typically contain an inve ntory of solid waste disposal
facilities or landfills. These may be active or I nactive facilities or open dumps that failed to meet RCRA Section
4004 criteria for solid waste landfills or disposal sites.
Date of Goverment Version: 06/13/03
Date Made Active at EDR: 07/07/03
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 06/16/03
Elapsed ASTM days: 21
Date of Last EDR Contact: 06/16/03
WMUDSISWAT: Waste Management Unit Database
Source: State Water Resources Control Board
Telephone: 916 - 227 -4448
Waste Management Unit Database System. WMUDS is used by the State Water Resources Control Board staff and the
Regional Water Quality Control Boards for program tracking and inventory of waste management units. WMUDS is composed
of the following databases: Facility Information, Scheduled Inspections Information, Waste Management Unit Information,
SWAT Program Information, SWAT Report Summary Information, SWAT Report Summary Data, Chapter 15 (formerly Subchapter
15) Information, Chapter 15 Monitoring Parameters, TPCA Program Information, RCRA Program Information, Closure
Information, and Interested Parties Information.
Date of Goverment Version: 04/01/00
Date Made Active at EDR: 05/10 /00
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 04/10/00
Elapsed ASTM days: 30
Date of Last EDR Contact: 06/17/03
LUST: - Leaking Underground Storage Tank information System
Source: State Water Resources Control Board
Telephone: 916 - 341 -5740
Leaking Underground Storage Tank Incident Reports. LUST records contain an inventory of reported leaking underground
. storage tank incidents. Not all states maintain these records, and the information stored varies by state.
Date of Goverment Version: 04/02/03
Date Made Active at EDR: 04/25/03
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 04/16/03
Elapsed ASTM days: 9
Date of Last EDR Contact: 04 /16/03
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CA BOND EXP. PLAN: Bond Expenditure Plan
Source: Department of Health Services
Telephone: 916- 255 -2118'
Department of Health Services developed a site - specific expenditure plan as the basis for an appropriation of
Hazardous Substance Cleanup Bond Act funds. It is not updated.
Date of Government Version: 01/01/89
Date Made Active at EDR: 08/02/94
Database Release Frequency: No Update Planned
CA UST:
UST: Active UST Facilities
Source: SWRCB
Telephone: 916 - 341 -5700
Active UST facilities gathered from the local regulatory agencies
Date of Government Version: 04/02/03
Date Made Active at EDR: 04/30/03
Database Release Frequency: Semi - Annually
Date of Data Arrival at EDR: 07127/94
Elapsed ASTM days: 6
Date of Last EDR Contact: 05/31/94
Date of Data Arrival at EDR: 04116/03
Elapsed ASTM days: 14
Date of Last EDR Contact: 04 /16/03
VCP: Voluntary Cleanup Program Properties
Source: Department of Toxic Substances Control
Telephone: 916- 323 -3400
Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents
have request that DTSC oversee investigation and /or cleanup activities and have agreed to provide coverage for
DTSC's costs.
Date of Government Version: 04/28/03
Date Made Active at EDR: 06112/03
Database Release Frequency: Quarterly
INDIAN UST: Underground Storage Tanks on Indian Land
Source: EPA Region 9
Telephone: 415- 972 -3368
Date of Government Version: N/A
Date Made Active at EDR: N/A
Database Release Frequency: Varies
Date of Data Arrival at EDR: 06102103
Elapsed ASTM days: 10
Date of Last EDR Contact: 06/02/03
Date of Data Arrival at EDR: N/A
Elapsed ASTM days: 0
Date of Last EDR Contact: N/A
CA FID UST: Facility Inventory Database
Source: California Environmental Protection Agency
Telephone: 916 - 445 -6532
The Facility Inventory Database (FID) contains a historical listing of active and inactive underground storage
tank locations from the State Water Resource Control Board. Refer to locallcounty source for current data.
Date of Government Version: 10/31/94
Date Made Active at EDR: 09129/95
Database Release Frequency: No Update Planned
Date of Data Arrival at EDR: 09/05/95
Elapsed ASTM days: 24
Date of Last EDR Contact: 1228196
HIST UST: Hazardous Substance Storage Container Database
Source: State Water Resources Control Board
Telephone: 916 -341 -5700
The Hazardous Substance Storage Container Database is a historical listing of UST sites. Refer to locaticounty
source for current data.
Date of Government Version: 10/15/90
Date Made Active at EDR: 02/12/91
Database Release Frequency: No Update Planned
Date of Data Arrival at EDR: 01/25191
Elapsed ASTM days: 18
Date of Last EDR Contact: 0726101
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GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
STATE OF CALIFORNIA ASTM SUPPLEMENTAL RECORDS
AST: Aboveground Petroleum Storage Tank Facilities
Source: State Water Resources Control Board
Telephone: 916 -341 -5712
Registered Aboveground Storage Tanks.
Date of Government Version: 05/01103
Database Release Frequency: Quarterly
Date of Last EDR Contact: 05 /05/03
Date of Next Scheduled EDR Contact: OB104 /03
CLEANERS: Cleaner Facilities
Source: Department of Toxic Substance Control
Telephone: 916 -225 -0873
A list of drycleaner related facilities that have EPA ID numbers. These are facilities with certain SIC codes:
power laundries, family and commercial; garment pressing and cleaner's agents; linen supply; coin- operated laundries
and cleaning; drycleaning plants, except rugs; carpet and upholster cleaning; industrial launderers; laundry and
garment services.
Date of Government Version: 03/11/03
Database Release Frequency: Annually
CA WDS: Waste Discharge System
Source: State Water Resources Control Board
Telephone: 916- 657 -1571
Sites which have been issued waste discharge requirements.
Date of Government Version: 06/23/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 04/07/03
Date of Next Scheduled EDR Contact: 07/07/03
Date of Last EDR Contact: 06/23/03
Date of Next Scheduled EDR Contact: 09/22/03
DEED: List of Deed Restrictions
Source: Department of Toxic Substances Control
Telephone: 916 -323 -3400
The use of recorded land use restrictions is one of the methods the DTSC uses to protect the public from unsafe
exposures to hazardous substances and wastes.
Date of Government Version: 04/04/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 04/07/03
Date of Next Scheduled EDR Contact: 07107/03
NFA: No Further Action Determination
Source: Department of Toxic Substances Control
Telephone: 916- 323 -3400
This category contains properties at which DTSC has made a clear determination that the property does not pose
a problem to the environment or to public health.
Date of Government Version: 04128/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 06/02103
Date of Next Scheduled EDR Contact: 09101/03
REF: Unconfirmed Properties Referred to Another Agency
Source: Department of Toxic Substances Control
Telephone: 916- 323 -3400
This category contains properties where contamination has not been confirmed and which were determined as not
requiring direct DTSC Site Mitigation Program action or oversight. Accordingly, these sites have been referred
to another state or local regulatory agency.
Date of Government Version: 04/28103
Database Release Frequency: Quarterly
Date of Last EDR Contact: 06/02/03
Date of Next Scheduled EDR Contact: D9/01103
SCH: School Property Evaluation Program
Source: Department of Toxic Substances Control
Telephone: 916 - 323 -3400
This category contains proposed and existing school sites that are being evaluated by DTSC for possible hazardous
materials contamination. In some cases, these properties may be listed In the CalSites category depending on the
level of threat to public health and safety or the environment they pose.
TC11010443.3p Page GR-8
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GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 64/28103
Database Release Frequency: Quarterly
Date of Last EDR Contact: 06102/03
Date of Next Scheduled EDR Contact: 09/01/03
NFE: Properties Needing Further Evaluation
Source: Department of Toxic Substances Control
Telephone: 916 - 323 -3400
This category contains properties that are suspected of being contaminated. These are unconfirmed contaminated
properties that need to be assessed using the PEA process. PEA in Progress indicates properties where DTSC is
currently conducting a PEA. PEA Required indicates properties where DTSC has determined a PEA is required, but
not currently underway.
Date of Government Version: 04/28/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 06!02!03
Date of Next Scheduled EDR Contact: 09/01/03
HAZNEf: Hazardous Waste Information System
Source: California Environmental Protection Agency
Telephone: 916 -255 -1136
Facility and Manifest Data. The data is extracted from the copies of hazardous waste manifests received each year
by the DTSC. The annual volume of manifests is typically 700,000 - 1,000,000 annually, representing approximately
350,000 - 500,000 shipments. Data are from the manifests submitted without correction, and therefore many contain
some invalid values for data elements such as generator ID, TSD ID, waste category, and disposal method.
Date of Government Version: 12/31/01
Database Release Frequency: Annually
LOCAL RECORDS
ALAMEDA COUNTY:
Local Oversight Program Listing of UGT Cleanup Sites
Source: Alameda County Environmental Health Services
Telephone: 510- 567 -6700
Date of Government Version: 12102/02
Database Release Frequency: Semi - Annually
Underground Tanks
Source: Alameda County Environmental Health Services
Telephone: 510- 567 -6700
Date of Government Version: 11/26/02
Database Release Frequency: Semi - Annually
CONTRA COSTA COUNTY:
Date of last EDR Contact: 05/27/03
Date of Next Scheduled EDR Contact: 08/11/03
Date of Last EDR Contact: 05112/03
Date of Next Scheduled EDR Contact: 07/26103
Date of Last EDR Contact: 05/12/03
Date of Next Scheduled EDR Contact: 07128/03
Site List
Source: Contra Costa Health Services Department
Telephone: 925 - 646 -2286
List includes sites from the underground tank, hazardous waste generator and business pian/2185 programs.
Date of Government Version: 06/16/03
Database Release Frequency: Semi - Annually
FRESNO COUNTY:
Date of Last EDR Contact: 06105/03
Date of Next Scheduled EDR Contact: 09/01/03
CUPA Resources List
Source: Dept. of Community Health
Telephone: 559 -445 -3271
Certified Unified Program Agency. CUPA's are responsible for implementing a unified hazardous materials and hazardous
waste management regulatory program. The agency provides oversight of businesses that deal with hazardous materials,
operate underground storage tanks or aboveground storage tanks.
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GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
Date of Government Version: 03/28/03
Database Release Frequency- Semi- Annually
KERN COUNTY:
Underground Storage Tank Sites & Tank Listing
Source: Kern County Environment Health Services Department
Telephone: 661- 862 -8700
Kem County Sites and Tanks Listing.
Date of Government Version: 03/25/03
Database Release Frequency: Quarterly
LOS ANGELES COUNTY:
List of Solid Waste Facilities
Source: La County Department of Public Works
Telephone: 818 -458 -5185
Date of Government Version: 12/01/02
Database Release Frequency: Varies
City of El Segundo Underground Storage Tank
Source: City of El Segundo Fire Department
Telephone: 310 -607 -2239
Date of Government Version: 03/01103
Database Release Frequency: Semi - Annually
City of Long Beach Underground Storage Tank
Source: City of Long Beach Fire Department
Telephone: 562- 570 -2543
Date of Government Version: 05/30/02
Database Release Frequency: Annually
City of Torrance Underground Storage Tank
Source: City of Torrance Fire Department
Telephone: 310-61 B -2973
Date of Government Version: 02/25103
Database Release Frequency: Semi - Annually
City of Los Angeles Landfills
Source: Engineering & Construction Division
Telephone: 213- 473 -7669
Date of Government Version: 03/01/02
Database Release Frequency: Varies
HMS: Street Number List
Source: Department of Public Works
Telephone: 626 -458 -3517
Industrial Waste and Underground Storage Tank Sites.
Date of Government Version: 02/27/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 03128/03
Date of Next Scheduled EDR Contact: 08/11103
Date of Last EDR Contact: 06/09/03
Date of Next Scheduled EDR Contact: 09/08/03
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08/18103
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08/18/03
Date of Last EDR Contact: 05/27/03
Date of Next Scheduled EDR Contact: 08/25/03
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08118/03
Date of Last EDR Contact: 06/16/03
Date of Next Scheduled EDR Contact: 09/15/03
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08118!03
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Site Mitigation List
Source: Community Health Services
Telephone: 323 -890 -7806
Industrial sites that have had some sort of spill or complaint
Date of Government Version: 01!07/03
Database Release Frequency: Annually
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08/18/03
San Gabriel Valley Areas of Concern
Source: EPA Region 9
Telephone: 415- 972 -3178
San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office.
Date of Government Version: 12/31/98 Date of Last EDR Contact: 07106/99
Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: N/A
MARIN COUNTY:
Underground Storage Tank Sites
Source: Public Works Department Waste Management
Telephone: 415- 499-6647
Currently permitted USTs in Marin County.
Date of Government Version: 03104/03
Database Release Frequency: Semi - Annually
NAPA COUNTY:
Sites With Reported Contamination
Source: Napa County Department of Environmentai Management
Telephone: 707 - 253 -4269
Date of Government Version: 03/31/03
Database Release Frequency: Semi - Annually
Closed and Operating Underground Storage Tank Sites
Source: Napa County Department of Environmental Management
Telephones 707 - 253 -4269
Date of Government Version: 03/31/03
Database Release Frequency: Annually
ORANGE COUNTY:
List of Underground Storage Tank Cleanups
Source: Health Care Agency
Telephone: 714 - 834 -3446
Orange County Underground Storage Tank Cleanups (LUST).
Date of Government Version: 11/04/02
Database Release Frequency: Quarterly
List of Underground Storage Tank Facilities
Source: Health Care Agency
Telephone: 714 - 834 -3445
Orange County Underground Storage Tank Facilities (UST).
Date of Last EDR Contact: 05/05/03
Date of Next Scheduled EDR Contact: 08/04/03
Date of Last EDR Contact: 03131/03
Date of Next Scheduled EDR Contact: 06/30/03
Date of Last EDR Contact: 03/31/03
Date of Next Scheduled EDR Contact: 06 /30/03
Date of Last EDR Contact: 06/11103
Date of Next Scheduled EDR Contact: 09/08/03
TC11010443.3p Page GRA 1
Site Mitigation List
Source: Community Health Services
Telephone: 323 - 890 -7806
Industrial sites that have had some sort of spill or complaint.
Date of Government Version: 01/07/03
Database Release Frequency: Annually
Date of Last EDR Contact: 05119/03
Date of Next Scheduled EDR Contact: 08118/03
San Gabriel Valley Areas of Concern
Source: EPA Region 9
Telephone: 415- 972 -3178
San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office.
Date of Government Version: 12/31/98 Date of Last EDR Contact: 07/06/99
Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: NIA
MARIN COUNTY:
Underground Storage Tank Sites
Source: Public Works Department Waste Management
Telephone: 415- 499 -6647
Currently permitted USTs in Marin County.
Date of Government Version: 03/04/03
Database Release Frequency: Semi - Annually
NAPA COUNTY:
Sites With Reported Contamination
Source: Napa County Department of Environmental Management
Telephone: 707 - 253 -4259
Date of Government Version: 03/31/03
Database Release Frequency: Semi - Annually
Closed and Operating Underground Storage Tank Sites
Source: Napa County Department of Environmental Management
Telephone: 707- 253 -4269
Date of Government Version: 03/31/03
Database Release Frequency: Annually
ORANGE COUNTY:
List of Underground Storage Tank Cleanups
Source: Health Care Agency.
Telephone: 714- 634 -3446
Orange County Underground Storage Tank Cleanups (LUST).
Date of Government Version: 11/04/02
Database Release Frequency: Quarterly
List of Underground Storage Tank Facilities
Source: Health Care Agency
Telephone: 714- 8343446
Orange County Underground Storage Tank Facilities (UST).
Date of Last EDR Contact: 05/05/03
Date of Next Scheduled EDR Contact: 08/04/03
Date of Last EDR Contact: 03131/03
Date of Next Scheduled EDR Contact: 06/30/03
Date of Last EDR Contact: 03/31/03
Date of Next Scheduled EDR Contact: 06/30103
Date of Last EDR Contact: 06/11/03
Date of Next Scheduled EDR Contact: 09/08/03
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GOVERNMENT RECORDS SEARCH-ED / DATA CURRENCY TRACKING
Date of Government Version: 11/27/01
Date of Last EDR Contact: 06/11/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 09/08/03
List of industrial Site Cleanups
Source: Health Care Agency
Telephone: 714 -834 -3446
Petroleum and non- petroleum spills.
Date of Last EDR Contact: 04121/03
Date of Government Version: 10/24/00
Date of Last EDR Contact: 06111/03
Database Release Frequency: Annually
Date of Next Scheduled EDR Contact: 09/08/03
PLACER COUNTY:
Master List of Facilities
Source: Placer County Health and Human Services
Telephone: 530 -889 -7312
List includes aboveground tanks, underground tanks and cleanup sites.
Date of Government Version: 02/03/03 Date of Last EDR Contact: 06/23/03
Database Release Frequency. Semi - Annually Date of Next Scheduled EDR Contact: 09/22/03
RIVERSIDE COUNTY:
Listing of Underground Tank Cleanup Sites
Source: Department of Public Health
Telephone: 909 -358 -5055
Riverside County Underground Storage Tank Cleanup Sites (LUST).
Date of Government Version: 06/03/03
Date of Last EDR Contact: 04121/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 07/21103
Underground Storage Tank Tank List
Source: Health Services Agency
Telephone: 909 - 358 -5055
Date of Government Version: 05/30/03
Date of Last EDR Contact: 04/21/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 07/21/03
SACRAMENTO COUNTY:
CS - Contaminated Sites
Source: Sacramento County Environmental Management
Telephone: 916 -875 -8406
Date of Government Version: 04/02/03 Date of Last EDR Contact: 05/05/03
Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 08104!03
ML - Regutatory Compliance Master List
Source: Sacramento County Environmental Management
Telephone: 916 - 875 -8406
Any business that has hazardous materials on site - hazardous material storage sites, underground storage tanks,
waste generators.
Date of Government Version: 04103103 Date of Last EDR Contact: 05/05/03
Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 08/04103
TC11010443.3p Page GR -12
339 Ct 1��lo
GOVERNMENT RECORDS SEARCHED f DATA CURRENCY TRACKING
SAN BERNARDINO COUNTY:
Hazardous Material Permits
Source: San Bernardino County Fire Department Hazardous Materials Division
Telephone: 909 - 387 -3041
This listing includes underground storage tanks, medical waste handlersfgenerators, hazardous materials handlers,
hazardous waste generators, and waste oil generators/handlers.
Date of Government Version: 04/01/03 Date of Last EDR Contact: 06/09103
Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/08103
SAN DIEGO COUNTY:
Solid Waste Facilities
Source: Department of Health Services
Telephone: 619 -338 -2209
San Diego County Solid Waste Facilities.
Date of Government Version: 08/01/00
Database Release Frequency: Varies
Date of Last EDR Contact 05/27103
Date of Next Scheduled EDR Contact: 08/25/03
Hazardous Materials Management Division Database
Source: Hazardous Materials Management Division
Telephone: 619 - 338 -2268
The database includes: HE58 - This report contains the business name, site address, business phone number, establishment
'H' permit number, type of permit, and the business status, HE17 - In addition to providing the same information
provided in the HE58 listing, HE17 provides inspection dates, violations received by the establishment, hazardous
waste generated, the quantity, method of storage, treatment/disposal of waste and the hauler, and information
on underground storage tanks. Unauthorized Release List - Includes a summary of environmental contamination cases
in San Diego County (underground tank cases, non -tank cases, groundwater contamination, and soil contamination
are included.)
Date of Government Version: 03131/02 Date of Last EDR Contact: 04116/03
Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 07/07/03
SAN FRANCISCO COUNTY:
Local Oversite Facilities
Source: Department Of Public Health San Francisco County
Telephone: 415- 252 -3920
Date of Government Version: 06/20/03
Database Release Frequency: Quarterly
Underground Storage Tank Information
Source: Department of Public Health
Telephone: 415 -252 -3920
Date of Government Version: 03/17/03
Database Release Frequency: Quarterly
SAN MATEO COUNTY:
Fuel Leak List
Source: San Mateo County Environmental Health Services Division
Telephone: 650 -363 -1921
Date of Last EDR Contact: 06/09/03
Date of Next Scheduled EDR Contact: 09/08/03
Date of Last EDR Contact: 06/09/03
Date of Next Scheduled EDR Contact: 09/08/03
TC 11010443.3p Page GR -13
310 D{" �� o
GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 03/13/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 04/28/03
Date of Next Scheduled EDR Contact: 07/28/03
Business Inventory
Source: San Mateo County Environmental Health Services Division
Telephone: 650 -363 -1921 _
List includes Hazardous Materials Business Plan, hazardous waste generators, and underground storage tanks.
Date of Government Version: 06/16/03 Date of Last EDR Contact: 05/07/03
Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 07/14103
SANTA CLARA COUNTY:
Fuel Leak Site Activity Report
Source: Santa Clara Valley Water District
Telephone: 408 - 265 -2600
Date of Government Version: 01108103
Date of Last EDR Contact: 03131/03
Database Release Frequency: Semi - Annually
Date of Next Scheduled EDR Contact: 06/30/03
Hazardous Material Facilities
Source: City of San Jose Fire Department
Telephone: 408- 277AG59
Date of Government Version: 12111/02
Date of Last EDR Contact: 06/09/03
Database Release Frequency: Annually
Dale of Next Scheduled EDR Contact: 09/08/03
SOLANO COUNTY:
Leaking Underground Storage Tanks
Source: Solano County Department of Environmental Management
Telephone: 7071121 -6770
Date of Government Version: 12/20/02
Date of Last EDR Contact: 06/16/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 09/15/03
Underground Storage Tanks
Source: Solano County Department of Environmental Management
Telephone: 707 - 421 -6770
Date of Government Version: 12/18/02
Date of Last EDR Contact: 06/16/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 09/15103
SONOMA COUNTY:
Leaking Underground Storage Tank Sites
Source: Department of Health Services
Telephone: 707 - 565 -6565
Date of Government Version: 04/28/03 Date of Last EDR Contact: 04/28/03
Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 0728/03
SUTTER COUNTY:
Underground Storage Tanks
Source: Sutter County Department of Agriculture
Telephone: 530 - 822 -7500
TC11010443.3p Page GR -14
3�I ofyHo
GOVERNMENT RECORDS SEARCHED l DATA CURRENCY TRACKING
Date of Government Version: 07/01101
Database Release Frequency: Semi- Annually
Date of Last EDR Contact: 04/07/03
Date of Next Scheduled EDR Contact: 07/07/03
VENTURA COUNTY:
Inventory of Illegal Abandoned and Inactive Sites
Source: Environmental Health Division
Telephone: 805 -654 -2813
Ventura County Inventory of Closed, Illegal Abandoned, and Inactive Sites.
Date of Government Version: 09/01/02
Date of Last EDR Contact: 05 /27/03
Database Release Frequency: Annually
Date of Next Scheduled EDR Contact: 08125103
Listing of Underground Tank Cleanup Sites .
Source: Environmental Health Division
Telephone: 805 -654 -2813
Ventura County Underground Storage Tank Cleanup Sites (LUST).
Date of Government Version: 03/10/03
Date of Last EDR Contact: 06/15/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 08 /15/03
Underground Tank Closed Sites List
Source: Environmental Health Division
Telephone: 805 -654 -2813
Ventura County Operating Underground Storage Tank Sites (UST)/Underground Tank Closed Sites List.
Date of Government Version: 12130102
Date of Last EDR Contact: 04115103
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 07114103
Business Plan, Hazardous Waste Producers, and Operating Underground Tanks
Source: Ventura County Environmental Health Division
Telephone: 805 -654 -2813
The BWT list indicates by site address whether the Environmental Health Division has Business Plan (B), Waste
Producer (W), and /or Underground Tank (T) information.
Date of Government Version: 02111/03
Date of Last EDR Contact: 06/16/03
Database Release Frequency: Quarterly
Date of Next Scheduled EDR Contact: 09115t03
YOLO COUNTY:
Underground Storage Tank Comprehensive Facility Report
Source: Yolo County Department of Health
Telephone: 530 - 666 -6646
Date of Government Version: 10/28/02 Date of Last EDR Contact: 04121/03
Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 07/21/03
California Regional Water Quality Control Board (RWQCB) LUST Records
LUST REG 1: Active Toxic Site Investigation
source: California Regional Water Quality Control Board North Coast (1)
Telephone: 707- 576 -2220
Del Norte, Humboldt, Lake, Mendocino, Modoc, Siskiyou, Sonoma, Trinity counties. For more current information,
please refer to the State Water Resources Control Board's LUST database.
Date of Government Version: 02101101 Date of Last EDR Contact: 05/27/03
Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: 08/25/03
TC11010443.3p Page GR -15
GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
LUST REG 2: Fuel Leak List
Source: California Regional Water Quality Control Board San Francisco Bay Region (2)
Telephone: 510 -286 -0457
Date of Government Version: 03 /28/03
Database Release Frequency: Quarterly
LUST REG 3: Leaking Underground Storage Tank Database
Source: California Regional Water Quality Control Board Central Coast Region (3)
Telephone: 805 -549 -3147
Date of Government Version: 05/19/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 04/15/03
Date of Next Scheduled EDR Contact: 07114/03
Date of Last EDR Contact: 05/19103
Date of Next Scheduled EDR Contact: 08/18/03
LUST REG 4: Underground Storage Tank Leak List
Source: California Regional Water Quality Control Board Los Angeles Region (4)
Telephone: 213- 266 -6600
Los Angeles, Ventura counties. For more current information, please refer to the State Water Resources Control
Board's LUST database.
Date of Government Version: OB /09101
Database Release Frequency: No Update Planned
LUST REG 5: Leaking Underground Storage Tank Database
Source: California Regional Water Quality Control Board Central Valley Region (5)
Telephone: 916 -255 -3125 .
Date of Government Version: 04/01/03
Database Release Frequency. Quarterly
Date of Last EDR Contact 03/31/03
Date of Next Scheduled EDR Contact: 06/30103
Date of Last EDR Contact: 04/08/03
Date of Next Scheduled EDR Contact: 07/07/03
LUST REG 6L: Leaking Underground Storage Tank Case Listing
Source: California Regional Water Quality Control Board Lahontan Region (6)
Telephone: 916 -542 -5424
For more current information, please refer to the State Water Resources Control Board's LUST database.
Date of Government Version: 06/09/03 Date of Last EDR Contact: 04107/03
Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact 07/07103
LUST REG 6V: Leaking Underground Storage Tank Case Listing
Source: California Regional Water Quality Control Board Victorville Branch Office (6)
Telephone: 760- 346 -7491
Date of Government Version: 05/29/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 05/14/03
Date of Next Scheduled EDR Contact: 07/07/03
LUST REG 7: Leaking Underground Storage Tank Case Listing
Source: California Regional Water Quality Control Board Colorado River Basin Region (7)
Telephone: 760 - 346 -7491
Date of Government Version: 07/02/02
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 03/31/03
Date of Next Scheduled EDR Contact: 06/30/03
LUST REG 8: Leaking Underground Storage Tanks
Source: California Regional Water Quality Control Board Santa Ana Region (8)
Telephone: 909 -782 -4498
California Regional Water Quality Control Board Santa Ana Region (8). For more current information, please refer
to the State Water Resources Control Board's LUST database.
Date of Government Version: 06/11/03
Database Release Frequency: No Update Planned
Date of Last EDR Contact. 05112103
Date of Next Scheduled EDR Contact: 08/11103
TC11010443.3p Page GR -16
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GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
LUST REG 9: Leaking Underground Storage Tank Report
Source: California Regional Water Quality Control Board San Diego Region (9)
Telephone: 858467 -2980
Orange, Riverside, San Diego counties. For more current information, please refer to the State Water Resources
Control Board's LUST database.
Date of Government Version: 03/01/01
Database Release, Frequency: No Update Planned
Date of Last EDR Contact: 04 /21/03
Date of Next Scheduled EDR Contact: 07/21103
California Regional Water Quality Control Board (RWQCB) SLIC Records
SLIC REG 1: Active Toxic Site Investigations
Source: California Regional Water Quality Control Board, North Coast Region (1)
Telephone: 707 -576 -2220
Date of Government Version: 04 /03/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 05127/03
Date of Next Scheduled EDR Contact: 08/25/03
SLIC REG 2: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: Regional Water Quality Control Board San Francisco Bay Region (2)
Telephone: 510 -2815 -0457
Any contaminated site that impacts groundwater or has the potential to impact groundwater.
Date of Government Version: 03/28/03
Database Release Frequency: Quarterly
Date of last EDR Contact: 04/15/03
Date of Next Scheduled EDR Contact: 07/14103
SLIC REG 3: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: California Regional Water Quality Control Board Central Coast Region (3)
Telephone: 805 - 549 -3147
Any contaminated site that impacts groundwater or has the potential to impact groundwater.
Date of Government Version: 05/19/03
Database Release Frequency: Semi - Annually
Date of Last EDR Contact: 05/19/03
Date of Next Scheduled EDR Contact: 08/18103
SLIC REG 4: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: Region Water Quality Control Board Los Angeles Region (4)
Telephone: 213 -576 -6600
Any contaminated site that impacts groundwater or has the potential to impact groundwater.
Date of Government Version: 04/01/03
Database Release Frequency: Quarterly
Date of Last EDR Contact: 04/28/03
Date of Next Scheduled EDR Contact: 07/28/03
SLIC REG 5: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: Regional Water Quality Control Board Central Valley Region (5)
Telephone: 916 - 855 -3075
Unregulated sites that impact groundwater or have the potential to impact groundwater.
Date of Government Version: 03/01/03
Database Release Frequency: Semi - Annually
SLIC REG 6L: SLIC Sites
Source: California Regional Water Quality Control Board, Lahontan Region
Telephone: 530- 542 -5574
Date of Government Version: 06/09/03
Database Release Frequency: Varies
SLIC REG 6V: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: Regional Water Quality Control Board, Victorville Branch
Telephone: 619- 241 -6583
Date of Last EDR Contact: 04/08103
Date of Next Scheduled EDR Contact: 07/07/03
Date of Last EDR Contact: 06/09/03
Date of Next Scheduled EDR Contact: 09/08103
TC11010443.3p Page GR -17
�Lj t ALA;)
GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 07/19/01
Database Release Frequency: SemFAnnually
SLIC REG 7: SLIC List
Source: California Regional Quality Control Board, Colorado River Basin Region
Telephone: 760 - 346 -7491
Date of Government Version: 05/29/03
Database Release Frequency. Varies
SLIC. REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: California Region Water Quality Control Board Santa Ana Region (8)
Telephone: 909- 782 -3298
Date of Government Version: 04/01/03
Database Release Frequency: Semi - Annually
SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: California Regional Water Quality Control Board San Diego Region (9)
Telephone: 858 -467 -2980
Date of Government Version: 03103/03
Database Release Frequency: Annually
EDR PROPRIETARY HISTORICAL DATABASES
Date of Last EDR Contact: 04/08103
Date of Next Scheduled EDR Contact: 07107103
Date of Last EDR Contact: 05/27/03
Date of Next Scheduled EDR Contact 08/25/03
Date of Last EDR Contact: 04121103
Date of Next Scheduled EDR Contact: 07/07/03
Date of Last EDR Contact: 06 /02/03
Date of Next Scheduled EDR Contact: 09/01/03
EDR Historical Gas Station and Dry Cleaners: EDR has searched select national collections of business directories and has
collected listings of potential dry cleaner and gas stationtfilling station/service station sites that were available to
EDR researchers. EDR's review was limited to those categories of sources that might, In EDI ;'s opinion, include dry cleaning
and gas statibn/frliing stationlservice station establishments. The categories reviewed Included, but were not limited to:
gas, gas station, gasoline station, idling station, auto, automobile repair, auto service station, service station, dry
cleaner, cleaners, laundry, laundromat, cleaning/laundry, wash & dry, etc.
This information is meant to assist and complement environmental professionals in their conduct of environmental site
assessments, and is not meant to be a substitute for a full historical investigation as defined in ASTM Ell 527. The
information provided in this proprietary database may or may not be complete; i.e., the absence of a dry cleaner or gas
station/filling station /service station site does not necessarily mean that such a site did not exist in the area covered
by this- report.
(A note on dry cleaning "sites: it is not possible for EDR to differentiate between establishments that use PERC on -site as
a cleaning solvent and sites that function simply as drop -off and pick -up locations or that are traditional wet cleaningflaundry
facilities. Therefore, it is essential for environmental professionals to incorporate professional judgment in the evaluation of
each site.)
Former Manufactured Gas (Coal Gas) Sites: The existence and location of Coal Gas sites is provided exclusively to
EDR by Real Property Scan, Inc. ®Copyright 1993 Real Property Scan, Inc. For a technical description of the types
of hazards which may be found at such sites, contact your EDR customer service representative.
Disclaimer Provided by Real Property Scan, Inc.
The information contained in this report has predominantly been obtained from publicly available sources produced by entities
other than Real Property Scan. While reasonable steps have been taken to insure the accuracy of this report, Real Property
Scan does not guarantee the accuracy of this report. Any liability on the part of Real Property Scan is strictly limited to a refund
of the amount paid. No claim is made for the actual existence of toxins at any site. This report does not constitute a legal
opinion.
TC11010443.3p Page GR -18
315 � �ILIo
GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING
Date of Government Version: 07/19/01
Database Release Frequency: Semi - Annually
SLIC REG 7: SLIC List
Source: California Regional Quality Control Board, Colorado River Basin Region
Telephone: 760- 346 -7491
Date of Government Version: 05/29/03
Database Release Frequency: Varies
SLIC REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: California Region Water Quality Control Board Santa Ana Region (8)
Telephone: 909- 782 -3298
Date of Government Version: 04/01/03
Database Release Frequency: Semi- Annually
SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing
Source: California Regional Water Quality Control Board San Diego Region (9)
Telephone: 85B -467 -2980
Date of Government Version: 03/03/03
Database Release Frequency: Annually
EDR PROPRIETARY HISTORICAL DATABASES
Date of Last EDR Contact: 04/08/03
Date of Next Scheduled EDR Contact: 07/07/03
Date of Last ERR Contact: 05/27/03
Date of Next Scheduled EDR Contact: 08/25/03
Date of Last EDR Contact: 04/21/03
Date of Next Scheduled EDR Contact: 07/07/03
Date of Last EDR Contact: 06/02/03
Date of Next Scheduled EDR Contact: 09/01103
EDR Historical Gas Station and Dry Cleaners: EDR has searched select national collections of business directories and has
collected listings of potential dry cleaner and gas station/filling statiordservice station sites that were available to
EDR researchers. EDR's review was limited to those categories of sources that might, in EDR's opinion, include dry leaning
and gas station filling station /service station establishments. The categories reviewed included, but were not limited to:
gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, dry
cleaner, cleaners, laundry, laundromat cleaning/laundry, wash & dry, etc.
This information is meant to assist and complement environmental professionals in their conduct of environmental site
assessments, and is not meant to be a substitute for a full historical investigation as defined in ASTM El 527. The
information provided in this proprietary database may or may not be complete; i.e., the absence of a dry cleaner or gas
station/filling station /service station site does not necessarily mean that such a site did not exist in the area covered
by this report.
(A note on "dry cleaning" sites: it is not possible for EDR to differentiate between establishments that use PERC on -site as
a cleaning solvent and sites that function simply as drop -off and pick -up locations or that are traditional wet cleaning/laundry
facilities. Therefore, it is essential for environmental professionals to incorporate professional judgment in the evaluation of
each site.)
Former Manufactured Gas (Coal Gas) Sites: The existence and location of Coal Gas sites is provided exclusively to
EDR by Real Property Scan, Inc. aCopydght 1993 Real Property Scan, Inc. For a technical description of the types
of hazards which may be found at such sites, contact your EDR customer service representative.
Disclaimer Provided by Real Property Scan, Inc.
The information contained in this report has predominantly been obtained from publicly available sources produced by entities
other than Real Property Scan. While reasonable steps have been taken to insure the accuracy of this report, Real Property
Scan does not guarantee the accuracy of this report. Any liability on the part of Real Property Scan is strictly limited to a refund
of the amount paid. No claim is made for the actual existence of toxins at any site. This report does not constitute a legal
opinion.
TC11010443.3p Page GR -18
3y�o
GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
STATE OF CALIFORNIA BROWNFIELDS DATABASES RECORDS
VCP: Voluntary Cleanup Program Properties
Source: Department of Toxic Substances Control
Telephone: 916 - 323 -3400
Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents
have request that DTSC oversee investigation and/ or cleanup activities and have agreed to provide coverage for
DTSC's costs.
Date of Government Version: 04128103 Date of Last EDR Contact: 06102/03
Database Retease Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/01/03
OTHER DATABASES
Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be
complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the
area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily
mean that wetlands do not exist in the area covered by the report.
Oil/Gas Pipelines: This data was obtained by EDR from the USGS in 1994. it is referred to by USGS as GeoData Digital Line Graphs
from 1:100,000 -Scale Maps. It was extracted from the transportation category Including some oil, but primarily
gas pipelines.
Electric Power Transmission Line Data
Source: PennWell Corporation
Telephone: (800) 823 -6277
This map includes information copyrighted by PennWell Corporation. This Information is provided
on a best effort basis and PennWell Corporation does not guarantee its accuracy nor warrant its
fitness for any particular purpose. Such Information has been reprinted with the permission of PennWell.
Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity
to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all
sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers,
and nursing homes - where individuals who are sensitive receptors are likely to be located.
AHA Hospitals:
Source: American Hospital Association, Inc.
Telephone: 312 -280 -5991
The database includes a listing of hospitals based on the American Hospital Association's annual survey of hospitals.
Medical Centers: Provider of Services Listing
Source: Centers for Medicare & Medicaid Services
Telephone: 410 - 786 -3000
A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services,
a federal agency within the U.S. Department of Health and human Services.
Nursing Homes
Source: National Institutes of Health
Telephone: 301 -594 -6248
Information on Medicare and Medicaid certified nursing homes in the United States.
Public Schools
Source: National Center for Education Statistics
Telephone: 202- 502 -7300
The National Center for Education Statistics' primary database on elementary
and secondary public education in the United States. It is a comprehensive, annual, national statistical
database of all public elementary and secondary schools and school districts, which contains data that are
comparable across all states.
Private Schools
Source: National Center for Education Statistics
Telephone: 202 - 502 -7300
The National Center for Education Statistics' primary database on private school locations in the United States.
Daycare Centers. Licensed Facilities
Source: Department of Social Services
Telephone: 916 - 657 -4041
TC11010443.3p Page GR -19
3 t 1�!-lo
GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING
Flood Zone Data: This data, available in select counties across the country, was obtained by EDR In 1999 from the Federal
Emergency Management Agency (FEMA). Data depicts 100 -year and 5D0 -year flood zones as defined by FEMA.
NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR
in 2002 from the U.S. Fish and Wildlife Service.
STREET AND ADDRESS INFORMATION
® 2003 Geographic Data Technology, Inc., Rel. 0712002. This product contains proprietary and confidential property of Geographic
Data Technology, Inc. Unauthorized use, including copying for other than testing and standard backup procedures, of this product is
expressly prohibited.
TC11010443.3p Page GR -20
G €OCHECK ®- PHYSICAL SETTING SOURCE ADDENDUM
TARGET PROPERTY ADDRESS
REDGEWICK PROPERTY
EAST SIDE OF TASSAJARA RD
LIVERMORE, CA 94550
TARGET PROPERTY COORDINATES
Latitude (North):
Longitude (West):
Universal Tranverse Mercator:
UTM X (Meters):
UTM Y (Meters):
Elevation:
37.734638 - 37' 44'4,7"
121.861450 -121' 51'41.2"
Zone 10
640324.9
4176778.5
598 ft. above sea level
3L
EDR's GeoCheck Physical Setting Source Addendum has been developed to assist the environmental professional
with the collection of physical setting source information in accordance with ASTM 1527 -00, Section 7.2.3.
Section 7.2.3 requires that a current USGS 7.5 Minute Topographic Map (or equivalent, such as the USGS Digital
Elevation Model) be reviewed. It also requires that one or more additional physical setting sources be sought
when (1) conditions have been identified in which hazardous substances or petroleum products are likely
to migrate to or from the property, and (2) more information than is provided in the current USGS 7.5 Minute
Topographic Map (or equivalent) is generally obtained, pursuant to local good commercial or customary practice,
to assess the impact of migration of recognized environmental conditions in connection with the property. Such
additional physical setting sources generally include information about the topographic, hydrologic, hydrogeologic,
and geologic characteristics of a site, and wells in the area.
Assessment of the impact of contaminant migration generally has two principle investigative components:
1. Groundwater flow direction, and
2. Groundwater flow velocity.
Groundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics
of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of the geologic strata.
EDR's GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in
forming an opinion about the impact of potential contaminant migration.
TC11010443.3p Page A -1
3LIq
GROUNDWATER FLOW DIRECTION INFORMATION
i Groundwater flow direction for a particular site is best determined by a qualified environmental professional
using site - specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other
sources of information, such as surface topographic information, hydrologic information, hydrogeologic data
collected on nearby properties, and regional groundwater flow information (from deep aquifers).
i
TOPOGRAPHIC INFORMATION
Surface topography may be indicative of the direction of surficial groundwater flow. This Information can be used to
assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or,
should- contamination exist on the target property, what downgradient sites might be impacted.
TARGET PROPERTY TOPOGRAPHY
USGS Topographic Map: 2437121 -F7 LIVERMORE, CA
General Topographic Gradient: General WSW
Source: USGS 7.5 min quad index
SURROUNDING TOPOGRAPHY: ELEVATION PROFILES
a
J
c i
0
W
[IN M-11
O
(� V
N N
e m m a
a N m
r �
m �
a n N O C
South
TP
West I East
TP
0 112 1 Miles
Target Property Elevation: 598 ft.
Source: Topography has been determined from the USGS 7.5' Digital Elevation Model and should be evaluated
on a relative (not an absolute) basis. Relative elevation information between sites of close proximity
should be field verified.
TC11010443.3p Page A -2
J
m
,j
Jo
V
N a
a
West I East
TP
0 112 1 Miles
Target Property Elevation: 598 ft.
Source: Topography has been determined from the USGS 7.5' Digital Elevation Model and should be evaluated
on a relative (not an absolute) basis. Relative elevation information between sites of close proximity
should be field verified.
TC11010443.3p Page A -2
350
GEOCHECe - PHYSICAL SETTING SOURCE SUMMARY
HYDROLOGIC INFORMATION
Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist
the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should
contamination exist on the target property, what downgradient sites might be impacted.
Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways
and bodies of water).
FEMA FLOOD ZONE
Target Property County
ALAMEDA,CA
Flood Plain Panel at Target Property:
Additional Panels in search area:
NATIONAL WETLAND INVENTORY
NWI Quad at Target Property
LIVERMORE
FEMA Flood
Electronic Data
YES - refer to the Overview Map and Detail Map
0600010115B
06002505006
06002504756
0600250625B
06002506008
0600010120A
NWI Electronic
Data Covera e
YES - refer to the Overview Map and Detail Map
HYDROGEOLOGIC INFORMATION
Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator
of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the
environmental professional in forming an opinion about the impact of nearby contaminated properties or, should
contamination exist on the target property, what'downgradient sites might be impacted.
Site - Specific Hydrogeological Data':
Search Radius: 1.25 miles
Status: Not found
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• cow he -ire EnK+ rReapome Carp .. a and LiebBH, kdwn . Syelem (cERCt.157 imestigelbn. .
TC11010443.3p Page A -3
OEOC °HEW PHYSICAL SETTI'N'G SOURCE SUMMARY
GROUNDWATER FLOW VELOCITY INFORMATION
Groundwater Flow velocity information for a particular site is best determined by a qualified environmental professional
using site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessary
to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil
characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes
move more quickly through sandy - gravelly types of soils than silty - ciayey types of soils.
GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY
Geologic information can be used by the environmental professional in forming an opinion about the relative speed
at which contaminant migration may be occurring.
ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION
Era: Cenozoic Category: Continental Deposits
System: Tertiary
Series: Pliocene
Code: Tpc (decoded above as Era, System & Series)
Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology
of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. Beikman
Map, USGS Digital Data Series DDS -11 (1994).
DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY
j The U.S. Department of Agriculture's (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil
Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information
for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns
in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps.
The following information is based on Soil Conservation Service STATSGO data.
Soil Component Name: ALTAMONT
Soil Surface Texture: clay
Hydrologic Group: Class D - Very slow infiltration rates. Soils are clayey, have a high
water table, or are shallow to an impervious layer.
Soil Drainage Class: Well drained. Soils have intermediate water holding capacity. Depth to
water table is more than 6 feet.
Hydric Status: Soil does not meet the requirements for a hydre soil.
Corrosion Potential - Uncoated Steel: HIGH
Depth to Bedrock Min: > 40 inches
Depth to Bedrock Max: > 60 inches
TC11010443.3p Page A-4
GEOCH'ECK® - PHYSICAL SETTING SOURCE SUMMARY
Soil Layer Information
Boundary
Classification
Layer
Upper
Lower
Soil Texture Class
AASHTO Group
Unified Soil
Permeability
Soil Reaction
Rate (In/hr)
(pH)
1
0 inches
28 inches
clay
Slit -Clay
FINE- GRAINED
Max: 0.20
Max: 8.40
Materials (more
SOILS, Silts
Min: 0.06
Min: 6.10
than 35 pct.
and Clays
passing No.
(liquid limit
200), Clayey
50% or more),
Soils.
Fat Clay.
2
28 inches
50 Inches
clay
Silt -Clay
FINE - GRAINED
Max: 0.20
Max: 8.40
Materials (more
SOILS, Silts
Min: 0.06
Min: 7.40
than 35 pct,
and Clays
passing No.
(liquid limit
200), Clayey
50% or more),
Soils.
Fat Clay.
3
50 inches
54 inches
weathered
Not reported
Not reported
Max: 0.00
Max: 0.00
bedrock
I
I
Min: 0.00
Min: 0.00
OTHER SOIL TYPES IN AREA
Based on Soil Conservation Service STATSGO data, the following additional subordinant soil types may
appear within the general area of target property.
1
Soil Surface Textures: silty clay loam
clay loam
loam
loamy sand
sandy loam
Surficial Soil Types: silty clay loam
clay loam
loam
loamy sand
sandy loam
Shallow Soil Types: clay loam
Deeper Soil Types: unweathered bedrock
ADDITIONAL ENVIRONMENTAL RECORD SOURCES
According to ASTM E 1527 -00, Section 7.2.2, "one or more additional state or local sources of environmental
records may. be checked, in the discretion of the environmental professional, to enhance and supplement federal
and state sorces... Factors to consider in determining which local or additional state records, if
any, should be checked include (1) whether they are reasonably ascertainable, (2) whether they are sufficiently
useful, accurate, and complete in light of the objective of the records review (see 7.1.1), and (3) whether they
are obtained, pursuant to local, good commercial or customary practice." One of the record sources listed in Section
7.2.2 is water well information. Water well information can be used to assist the environmental professional in
assessing sources that may impact groundwater flow direction, and in forming an opinion about the impact of
contaminant migration on nearby drinking water wells.
TC11010443.3p PageA -5
GEO`CHECK® - PHYSICAL SETTING SOURCE SUMMARY
WELL SEARCH DISTANCE INFORMATION
DATABASE
SEARCH DISTANCE (miles)
Federal USGS
1.000
Federal FRDS PWS
Nearest PWS within 1 mile
State Database
1.000
FEDERAL USGS WELL INFORMATION
LOCATION
MAP ID WELL ID FROM TP
1 USGS0120433 112 -1 Mile NW
FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION
LOCATION
MAP ID WELL ID FROM TP
No PWS System Found
Note: PWS System location is not always the same as well location.
STATE DATABASE WELL INFORMATION
LOCATION
MAP 1D WELL 1D FROM TP
No Wells Found
353
TC11010443.3p Page A-6
1.4 C)
PHYSICAL SETTING SOURCE MAP - 11010443.3p
it
40
ij
IIH
.����r �� �� � ii !,• (i'; ' j �'I /(!i�; � � ? ,, Iii, /i,; i '>�/ -- ~``- -� ' ', `- �/
/ � \ `` 1�,`'1 1,� i � _ ) I� I'/ 1 �.r`'._; 11 �i! r�l fill 1 j f /' 1 � � �, ''l r��i "• l�,ill 1•� \\ ,
%', t 'r� j �r i i � , t l i ,'r' //. ! .. �' � �) � . l ! � �'•:;.�'\`� o\ • i ,, \ :` % j r. ":' i i
Wily;
/
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•— lit
1 \,`:�. /% ,w^
iJ if
- -.. J _ t 1 � , ,.•:..; ;. :•sue - / � -. -- _ :�```_.,�' /; I
+ /� � %, i a.` t � � � j � / 1.� i ( (�� i �li;! i � `1 \`•Ir I ijl'!� \ / ` ` �,
J \ � •''� \\ � it
)/t
_" %tao'`'
if
A/
County Boundary
CUSTOMER:
N
Major Roads
East Side of Tassajara Rd
CONTACT:
Tim Casey
}
Groundwater Flow Directio n
" '
Contour Lines
G t
Indeterminate Groundwater Flow at Location
,P41
Earthquake Fault Lines
DATE:
July 10, 2003 7 :43 pm '
OEarthquake
epicenter, Richter 5 or greater
G V
Groundwater Flow Varies at Location
®
Hydrogeotogicai Data
(9
®
Water Wells
•
OII, gas or related wells
©
Public Water Supply Wells
•
Cluster of Multiple Icons
TARGET PROPERTY:
Redgewiek Property
CUSTOMER:
Eekland Consultants, Inc.
ADDRESS:
East Side of Tassajara Rd
CONTACT:
Tim Casey
CITY /STATE/ZIP:
Livermore CA 94550
INQUIRY #:
11010443.3p
LAT /LONG:
37.7346/121.8615
DATE:
July 10, 2003 7 :43 pm '
caDWIO`r 4 2o03 EDP, Inc ci 2003 GOT. Inc. B.I. 07!2002. AN PI01ds Racsrved.
-3'55tHgO
GEOCHECK ®- PHYSICAL SETTING SOURCE MAP FINDINGS
Map 1D
Direction
Distance
Elevation Database EDR ID Number
1
NW FED USGS USGS0120433
112 -1 Mile
Lower
Agency:
USGS
Site ID:
374430121521201
Site Name:
0025001 E21P001M
Dec. Latitude:
37.74159
Dec. Longitude:
- 121.87107
Coord Sys:
NAD83
State:
CA
County:
Contra Costa County
Altitude:
490.00
Hydrologic code:
18050004
Topographic:
Pediment
Site Type:
Ground -water other than Spring
Const Date:
19780101
Inven Date:
Not Reported
Well Type:
Single well, other than collector or Ranney type
Primary Aquifer.
Not Reported
Aquifer type:
Not Reported
Well depth:
Not Reported
Hole depth:
Not Reported
Source:
Not Reported
Project no:
Not Reported.
TC11010443.3p Page A-8
354,
GEOCHECK®-PHYSICAL SETTING SOURCE MAP FINDINGS
RAIJOI
AREA RADON INFORMATION
Federal EPA Radon Zone for ALAMEDA County: 2
Note: Zone 1 indoor average level > 4 pCUL.
Zone 2 indoor average level >= 2 pCIIL and <- 4 pCI1L.
Zone 3 indoor average level < 2 pCUL.
Federal Area Radon Information for Zip Code:
94550
Number of sites tested: 6
Area
Average Activity
% <4 pCi /L
% 4 -20 pCUL
% >20 pCi /L
Living Area -1st Floor
0.567 pCUL
100%
0%
0%
Living Area - 2nd Floor
Not Reported
Not Reported
Not Reported
Not Reported
Basement
Not Reported
Not Reported
Not Reported
Not Reported
TC11010443.3p Page A -9
35� �f-y y 0
PHYSICAL SETTING SOURCE RECORDS SEARCHED
TOPOGRAPHIC INFORMATION
USGS 7.5 Digital Elevation Model (DEM)
Source: United States Geologic Survey
EDR acquired the USGS 7.5' Digital Elevation Model in 2002 7.5- Minute DEMs correspond to the USGS
1:24,000- and 1:25,000 -scale topographic quadrangle maps.
HYDROLOGIC INFORMATION
Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 1999 from the Federal
Emergency Management Agency (FEMA). Data depicts 100 -year and 500 -year flood zones as defined by FEMA.
NN: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR
in 2002 from the U.S. Fish and Wildlife Service.
HYDROGEOLOGIC INFORMATION
AQUIFLOWR Information System
Source: EDR proprietary database of groundwater flow information
EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater
flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has
extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table
information.
GEOLOGIC INFORMATION
Geologic Age and Rock Stratigraphic Unit
Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 12,500,000 Scale - A digital
representation of the 1974 P.B. King and H.M. Belkman Map, USGS Digital Data Series DDS -11 (1994).
STATSGO: State Sol Geographic Database
The U.S. Department of Agriculture's (USDA) Soil Conservation Service (SCS) leads the national Cooperative
Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey
information for privately owned lands in the United States. A soil map in a soil survey is a representation of
soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) son
survey maps.
ADDITIONAL ENVIRONMENTAL RECORD SOURCES
FEDERAL WATER WELLS
PWS: Public Water Systems
Source: EPA/Office of Drinking Water
Telephone: 202 -564 -3750
Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at
least 25 people for at least 60 days annually. PWSs provide water from wells, rivers. and other sources.
PWS ENF: Public Water Systems Violation and Enforcement Data
Source: EPA/Office of Drinking Water
Telephone: 202 -564 -3750
Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after
August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).
USGS Water Wells: USGS National Water Inventory System (NWIS)
This database c retains descriptive information on sites where the USGS collects or has collected data on surface
water and /or groundwater. The groundwater data includes Information on wells, springs, and other sources of groundwater.
TC11010443.3p Page A -10
35� �yyo
PHYSICAL SETTING SOURCE RECORDS SEARCHED
STATE RECORDS
California Drinking Water Quality Database
Source: Department of Health Services
Telephone: 916- 324 -2319
The database includes all drinking water compliance and special studies monitoring for the state of California
since 1984. It consists of over 3,200,000 individual analyses along with well and water system information.
California Oil and Gas Well Locations for District 2, 3, 5 and 6
Source: Departrnent of Conservation
Telephone: 916- 323 -1779
RADON
Area Radon Information
Source: USGS
Telephone: 703- 356AO20
The National Radon Database has been developed by the U.S. Environmental Protection Agency
(USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey.
The study covers the years 1986 -1992. Where necessary data has been supplemented by information collected at
private sources such as universities and research institutions.
EPA Radon Zones
Source: EPA
Telephone: 703 - 356 -4020
Sections 307 & 309 of IRAA directed EPA to Fist and identify areas of U.S. with the potential for elevated indoor
radon levels.
A .1;x 7
Airport Landing Facilities: Private and public use landing facilities
Source: Federal Aviation Administration, 800 -457 -6656
Epicenters: World earthquake epicenters, Richter 5 or greater
Source: Department of Commerce, National Oceanic and Atmospheric Administration
California Earthquake Fault Lines: The fault lines displayed on EDR's Topographic map are digitized quaternary fault fines,
prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault
lines comes from California's Preliminary Fault Activity Map prepared by the California Division of Mines and .Geology.
TC11010443.3p Page A -11
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DETAILED ORPHAN LISTING
EDR ID Number
Site Databases) EPA ID Number
PG &E GAS PLANT LIVERMORE
CERC -NFRAP 1003878884
200 TO 375 FT W OF N ST @RR
CAD981415102
LIVERMORE, CA 94550
Operator Phone: Not reported
CERCLIS -NFRAP Classification Data:
Owner: Calif Dept Of Water Resources
Site Incident Categorkiot reported
Federal Facility:
Not a Federal Facility
Non NPL Code: NFRAP
Sacramento, CA
95816
Ownership Status: Unknown
NPL Status:
Not on the NPL
CERCLIS -NFRAP Assessment History:
Regulation Status: To Be Determined
Assessment: DISCOVERY
Completed:
06101/1986
Assessment: PRELIMINARY ASSESSMENT
Completed:
12101/1987
Assessment: ARCHIVE SITE
Completed:
12/01/1987
DEL VALLE RESERVOIR DS SWFILF S105678083
ARROYO RD, 114 Ml NW OF DEL VALLE DAM NIA
LIVERMORE, CA
LF:
Facility ID: 01-CR -0032
Operator. Not reported
Operator Phone: Not reported
Operator Addr.
Owner: Calif Dept Of Water Resources
Owner Address: Not reported
3251 S Street
Sacramento, CA
95816
Owner Telephone: (916) 227 -7567
Activity: Solid Waste Disposal Site
Operators Status: Closed
Regulation Status: To Be Determined
Region: STATE
Lat/Long: 381 -122
Permit Date: Not reported
Accepted Waste:
Restrictions:
Status :
Not reported
Swisnumber :
Not reported
Site Type:
Not reported
Ake:
Not reported
Type Of Waste:
Not reported
Disposal Area:
Not reported
SWFP Date:
Not reported
WDR Number:
Not reported
Dates Of Operation :
Not reported
Closure Approved :
Not reported
Date Of Field Units :
Not reported
Surface Condition:
Not reported
Landfill Gas:
Not reported
Leachate :
Not reported
Emergency Response:
Not reported
Other Recommendation :
Not reported
Reassess Site :
Not reported
Priority For Site Assessment:
Not reported
Lea Date:
Not reported
Explanation:
Not Reported
No Further Action:
Not Reported
Permitted Throughput with Units:
0
Permitted Throughput with Units:
0
Permitted Throughput with Units:
0
Actual Throughput with Units:
Not reported
TC11010443.3p Page 8
DETAILED ORPHAN LISTING
Site
DEL VALLE RESERVOIR DS (Continued)
Actual Capacity with Units:
0
Permitted Capacity with Units:
0
Remaining Capacity with Units:
Not reported
Permitted Total Acreage:
0
Inspection Frequency:
Quarterly
Landuse Name:
Not reported
GIS Source:
Map
Permit Status:
Not reported
Category:
Disposal
Unit Number:
01
Last Waste Tire Inspectiori Count:
0
Last Waste sire Inspection Date:
0
Original Waste Tire Count:
Not reported
Original Waste Tire Count Date:
Not reported
Closure Date:
12/31/57
Closure Type:
Estimated
Disposal Acreage:
0
Remaining Capacity:
0
DITCH+CULVERT PROPERTY OWNER
DrrCH +CULVERT PROPERTY OWNER
LIVERMORE, CA
Site ID:
8856827
Site Location:
DITCH +CULVERT PROPERTY OWNER
LIVERMORE, CA
ALAMEDA County
Report No:
Not reported
EPA Region:
09
Spill Date:
01110/1988
Spill Time:
16:00
Medium Desc:
Water
Damage/Amt:
Yes J $0.00
Evacuation:
No injured:
Fatalities:
None Disch Org:
Notes:
UNNNAMED CREEK
Disch Add:
6410 N FRONT
LIVERMORE, CA
2t"57� t��D
FOR ID Number
Database(s) EPA ID Number
5105678083
ERNS 8856827
NIA
None
HK GRADING + CONST INC
Duch County: ALAMEDA C.G. Unit: Not reported
Cause: UNKNOWN
Spilled Material Total Qty in Water Undot Cas Qty
OIL
Description:
Resp Action:
Misc. Info:
Location:
0.00 lbs. 0.00 UN1270 Not reported Not reported
CONTAMINATED EMBANKMENT+ UNNAMED CREEK/CAUSE= SOURCE =UNK CONTAMINATED
EMBANKMENT +UNNAMED CREEK/CAUSE= SOURCE =UNK
REFERRED TO CA -F &G AND RWQCB FOR ACTION
OES CONTROL NUMBER 88 -0065 CO /PUBLIC REPORTER =MR. MARSH
DITCH +CULVERT PROPERTY OWNER
MARCIEL RANCH LANDSPREADiNG
JESS RANCH ROAD
LIVERMORE, CA
LF:
Facility ID: 01 -AA -0273
Operator. Not reported
Operator Phone: Not reported
Operator Addr.
SWFILF S102359662
N/A
TC1 101 0443.3p Page 9
0 0
DETAILED ORPHAN LISTING
EDR ID Number
Site Database(s) EPA ID Number
MARCIEL RANCH LANDSPREADING (Continued) S102359662
Owner. Waste Management Of The Inland Valley
Owner Address: Not reported
800 Temescal Street
Corona, CA 91719
Owner Telephone: (909) 817 -2400
Activity: Solid Waste Landfill
Operator's Status: Planned
Regulation Status: Exempt
Region: STATE
Lat/Long: 381-122
Permit Date: 9129/93
Accepted Waste:.
Restrictions:
Status :
Not reported
Swisnumber :
Not reported
Site Type :
Not reported
Aka:
Not reported
Type Of Waste:
Not reported
Disposal Area:
Not reported
SWFP Date:
Not reported
WDR Number:
Not reported
Dates Of Operation :
Not reported
Closure Approved:
Not reported
Date Of Field Units :
Not reported
Surface Condition :
Not reported
Landfill Gas:
Not reported
Leachate :
Not reported
Emergency Response:
Not reported
Other Recommendation:
Not reported
Reassess Site:
Not reported
Priority For Site Assessment:
Not reported
Lea Date:
Not reported
Explanation:
Not Reported
No Further Action:
Not Reported
Permitted Throughput with Units:
0
Permitted Throughput with Units:
0
Permitted Throughput with Units:
0
Actual Throughput with Units:
Not reported
Actual Capacity with Units:
0
Permitted Capacity with Units:
0
Remaining Capacity with Units:
Not reported
Permitted Total Acreage:
0
Inspection Frequency:
None
Landuse Name:
Not reported
GIS Source:
Place
Permit Status:
Exempted
Category:
Disposal
Unit Number.
01
Last Waste Tire Inspection Count:
0
Last Waste Tire Inspection Date:
0
Original Waste Tire Count:
Not reported
Original Waste Tire Count Date:
Not reported
Closure Date:
/ /
Closure Type:
Not reported
Disposal Acreage:
0
Remaining Capacity:
0
TC11010443.3p Page 10
DETAILED ORPHAN LISTING
Site
CALIFORNIA WATER SERV WELL #10-01
RICHEN AVE & SUNSET DRIVE
LIVERMORE, CA 94550
CERCLIS - NFRAP Classification Data:
Site Incident CategorNot reported
Non NPL Code: NFRAP
Ownership Status: Private
CERCLIS - NFRAP Assessment History:
Assessment: DISCOVERY
Assessment: PRELIMINARY ASSESSMENT
Assessment ARCHIVE SITE
CERCLIS - NFRAP Alias Name(s):
CALIFORNIA WATER SERVICES WELL #10 -01
CWS WELL #10 -01
CITY OF LIVERMORE (OPERATOR)
EDR ID Number
Database(s) EPA ID Number
CERC - NFRAP 1003879288
CAD982400236
Federal Facility. Not a Federal Facility
NPL Status: Not on the NPL
Completed: 06/01/1988
Completed: 1010111988
Completed: 10/01/1988
TC11010443.3p Page 11
DUBLIN
SAN RAMON
SERVICES
DISTRICT
3bL{ t y �o
7051 Dublin Boulevard
Dublin, California 94568
Phone: 925 828 0515
FAX: 925 829 1180
www.dsrsd.com
October 26, 2009 RECEIVED
City of Dublin - City Manager's Office OCT 2 7 zoo
Martha Aja - Environmental Specialist
8� ��,��
100 Civic Plaza
Dublin, CA 94568
Subject: Dublin Ranch North Annexation Area - Notice of Availability of Nitigated Negative
Declaration and Intent to Adopt Mitigated Negative Declaration
Dear Ms. Aja:
Thank you for the opportunity to review and comment on the Notice of Intent to Adopt a Mitigated
Negative Declaration for the Dublin Ranch North Annexation Area. As noted in your study, this area is
157.7 acres in extent and is currently outside the City of Dublin's city limits but within the sphere of
influence. Likewise, the property is within the Dublin San Ramon Services District (DSRSD) sphere of
influence and must be annexed to the DSRSD service area for the District to provide services. DSRSD
has identified this property for future District services effective with the Eastern Dublin Specific Plan of
1993. DSRSD has found no impacts or necessary mitigations beyond those identified in the Notice of
Intent to Adopt a Mitigated Negative Declaration.
As noted in the study, the current Specific Plan/General Plan Amendment provides for development of
16.8 acres with Low Density Residential units and 143.2 acres of Rural Density /Agricultural units. Thus,
the current Specific Plan provides for development of up to 68 units on this property. The District noted
that this revision provides for only four Estate Residential units with the rest of the property designated as
Open Space. Thus, this revision will require a lower volume of potable water services and a similar lower
volume of sanitary sewer services from DSRSD. DSRSD would be capable of providing the necessary
services at the higher volumes permitted under the current Specific Plan and will be able to provide
needed services at the revised development levels.
As the area is currently outside the DSRSD service area, annexation fees will be required to bring the
annexation area into our service area. As part of the permitting process, Water Annexation fees of $11.74
per acre and Sewer Annexation fees of $28.58 per acre will be charged for the area being annexed.
Thank you for the opportunity to comment. Should you have any questions concerning the above, please
contact Stan Kolodzie at (925) 875 -2253.
SK: st
Sincere
J
STANLEY LODZ .E.
Associate Engineer
Dublin San Ramon Sendces District is a Public Entity
H:\ENGDEPnCOA\DUBLINTA 08 -045 NOI to Adopt Mit Neg Dec - Dublin Ranch North (Redgewick) Annexation Area.doc
EXHIBIT B TO
ATTACHMENT 9
LAFCO
3(195 +
ALAMEDA LOCAL AGENCY FORMATION COMMISSION
1221 OAK STREET, SUITE 555 " OAKLAND, CA 94612
(510) 271 -5142 FAX (510) 272 -3784
WWW.ACGOV.ORG/LAFCO
Members
Katy Foulkes, Chair Gail Steele
Marshall Kamena
Sblend Sblendorio
Special District Member County Member
City Member
Public Member
Ayn Wieskamp Nate Miley, Vice Chair
Jennifer Hosterman
Special District Member County Member
City Member
Alternates
Louis Andrade Scott Haggerty
Anthony B. Santos
David Haubert
Special District Member County Member
City Member
Public Member
Executive Officer
Mona Palacios
RECENED
November 9, 2009
CITY OF DUSUN
City of Dublin — City Manager's Office Nov 10 2009
Attn: Martha Aja — Environmental Specialist
100 Civic Plaza CRY KWGER'S OFACE
Dublin CA 94568
Subject: Response to Initial Study/Mitigated Negative Declaration for the Dublin Ranch North
Annexation Area
Dear Ms. Aja:
Thank you for the opportunity to comment on the Initial Study and Mitigated Negative Declaration
(MND) for the Dublin Ranch North Annexation area. The Alameda Local Agency Formation
Commission (LAFCo), as a responsible agency, needs to ensure that potential impacts relating to the
proposed reorganization are evaluated to enable an informed decision by the Commission. To that end,
we offer the following comments:
1. Please include properly labeled annexation proposal maps. There should be one for the City of
Dublin proposed annexation, and one for the proposed annexation to the Dublin San Ramon Services
District (DSRSD).
2. The 17 year old Eastern Dublin Environmental Impact Report (EIR) is dated and, therefore, may be
less effective in the evaluation of potential agricultural impacts, especially cumulative and growth -
inducing impacts due to substantial changes in land use throughout the project vicinity and changes
in laws. Please provide a summary table highlighting the areas of re- analysis or new analysis
(affordable housing, greenhouse gas emissions, storm water regulations, etc.) that the City has done.
3. Please provide a complete table showing the existing and proposed service providers in the project
description.
4. Section XII on Population and Housing, p. 70 relies on the 1993/4 Eastern Dublin Specific Plan and
General Plan, and does not address the City's current affordable housing plan. These documents may
be too dated for effective use in this evaluation.
5. In general, potential impacts, conflicts and inconsistencies should be evaluated based on the change
from the existing General Plan designations (Alameda County's East County Area Plan), as opposed
to the City of Dublin's General and Specific Plans.
6. LAFCo's comprehensive agricultural, service, and annexation policies are not reviewed and
considered in the current IS/MND. Please address this information in your Response to Comments.
EXHIBIT C TO
ATTACHMENT 9
City of Dublin
November 9, 2009
Page 2
Should you have questions about the information above, please contact me 510- 272 -3894.
Sincerely,
Mona Palacios
Executive Officer
VALAF\Dublin\Dublin Ranch NorthVesponse to MND.doc
cc: Each Alameda LAFCo Commissioner
Brian Washington, LAFCo Legal Counsel
Ineda Adesanya, LAFCo Planner
Letter 2: Alameda County Local Agency Formation Commission
• Comment 2.1: Please include properly labeled annexation maps. There should be
one for the City of Dublin proposed annexation and one for the proposed
annexation to the City of Dublin San Ramon Services District (DSRSD).
Response: See attached labeled annexation map.
• Comment 2.2: The 17 year old Eastern Dublin Impact Report (EIR) is dated and,
therefore, may be less effective in evaluation of potential agricultural impacts,
especially cumulative and growth inducing impacts due to substantial changes in
land use throughout the project vicinity and changes in law. Please provide a
summary table highlighting the areas of re- analysis or new analysis (affordable
housing, greenhouse gas emissions, storm water regulations, etc.) that the City has
done.
Response:
2a. The Eastern Dublin EIR was certified in 1993 and its purpose was to analyze
the long term impacts of urbanizing Eastern Dublin over a 20 — 30 year period.
The Eastern Dublin EIR analyzed the change from the existing physical condition
(which includes the existing soils and agricultural uses). At the time that the EIR
was certified, most of Eastern Dublin was undeveloped and grazing was a
prevalent use. The Eastern Dublin EIR addressed the cumulative effects of
developing agricultural and open space areas and the basic policy considerations
accompanying the change in character from undeveloped lands to developed
lands.
The project proposes a limited development area with the majority of the project
site remaining in open space uses. It is expected that under the terms of the
conservation easement grazing would continue to be a primary use of the open
space portion of the property, which comprises approximately 127 acres of the
157 acre project site.
As provided by CEQA, the Mitigated Negative Declaration (MND) prepared for
the project updated the prior EIR through the completion of an Initial Study
checklist. Since the project proposes an annexation request, the MND examined
the LAFCo definition of prime agricultural soil. The Initial Study /MND
determined that no prime agricultural soils exist on the project site as defined by
LAFCo; therefore, as indicated in the MND there are no significant agricultural
impacts beyond those that were previously identified in the Eastern Dublin EIR.
The commenter refers to the substantial changes in land use throughout the
project vicinity. The commenter is correct in that substantial changes have
occurred in Eastern Dublin; however, development has occurred as anticipated
and in the 1993 Eastern Dublin EIR. Development of the Eastern Dublin area has
proceeded based on the approved Eastern Dublin General Plan Amendment and
EXHIBIT D TO
A TT A &' TTJL Him n
Specific Plan. Development has occurred where it was anticipated and analyzed in
the EIR and generally areas planned for Open Space remain in Open Space.
2b. Affordable Housing. The City of Dublin has adopted an Inclusionary
Ordinance to increase affordable housing opportunities in the City. All new
residential development projects of 20 units or more are required to construct
12.5% of the total number of dwelling units within the development as affordable
units. The project, due to its small size (4 lots) is exempt from this Ordinance.
2c. Storm Water Regulations. Water quality and drainage issues are addressed
on pages 64 — 67 of the MND. As noted in the MND, the National Pollution
Discharge Elimination System (NPDES) controls the discharge of pollutants to
water bodies from point and non -point sources. In the San Francisco Bay Area,
this program is administered by the Bay Area Regional Water Quality Control
Board. The City of Dublin is a co- permittee of the Alameda County Clean Water
Program, which is a coordinated effort by bay area governments in Alameda
County to improve the water quality of the San Francisco Bay.
Prior to the issuance of grading permits, the project will be reviewed to ensure
that no water quality standards or waste discharge requirements will be violated.
As a standard condition of approval and consistent with the Eastern Dublin EIR
mitigations, the Applicant shall be required to prepare a Storm Water Pollution
Prevention Plan which lists Best Management Practices to reduce drainage and
related water quality impacts from construction and post- construction activities to
a less than significant level. Construction of the project is anticipated to lead to an
increase in impervious surfaces on the site; however, due to the small size of the
project (4 lots) and the design of the stormdrain system on the Preliminary
Grading Plan and Vesting Tentative Map, run -off from the site will not exceed the
capacity of the existing drainage system. An on -site bioswale will be constructed
on the project site to treat surface runoff from portions of the project site.
Operation of the bioswale will ensure that the project doesn't add substantial
amounts of polluted run -off to the drainage system. Additionally, water quality
treatments will be a standard Condition of Approval on the Vesting Tentative
Map.
2d. Greenhouse gas emissions. GHG emissions are addressed on p. 46 of the
MND. No further analysis is required; however, in response to the comment, the
City provides the following additional information. The applicant proposes only
4 residential lots, and based on the small size of the project, any potential impact
would be a less than significant contribution to cumulative GHG emissions.
Furthermore, the project minimizes both construction and operational emissions
generally and as to GHG in that the four future homes will be located within
limited building and grading envelopes within the proposed lots. The building
areas are located close to the private driveway, which is close to the approved
development to the west, thereby minimizing the length of accessways to the
project and limiting the amount of grading (and resulting emissions) for creation
3(9 O-y�o
of the driveway and building sites. The project would also be subject to any
regulatory conservation ordinances, e.g., DSRSD's water conservation ordinance.
• Comment 2.3: Please provide a complete table showing the existing and proposed
service providers in the project description.
Response: The existing and proposed service providers are discussed in Section
XIII, Public Services (pgs. 70 — 72) and Section XVI, Utilities and Service
Systems (pgs. 76 — 78). Staff does not feel that it is necessary to include this
information in the project description. The project site is currently vacant with the
exception of the DSRSD water tank and access road; therefore, it currently does
not receive any services. The existing services providers listed in the table below
indicate the service providers if the property were to develop in the County.
Per the commenter's request, the table below shows the existing and proposed
service providers.
*City of Dublin contracts with Alameda County for fire protection
* *City of Dublin contracts with Alameda County Sheriff Department for police
protection
• Comment 2.4: Section XII on Population and Housing, p. 70 relies on the 1993/94
Eastern Dublin Specific Plan and General Plan, and does not address the City's
current affordable housing plan. These documents may be too dated for effective
use in this evaluation.
Response: The comment references the population and housing discussion on
page 70 of the MND. The MND updates population and housing information
based on the Department of Finance's 2008 figure.
As noted in the Initial Study, the project would not displace any housing or
people. As previously noted, the project reflects development proposed in a
limited area and is a substantial decrease in the number of units assumed in the
Existing Service Providers
Proposed Service
Providers
Fire Protection
Alameda County Fire
Alameda County Fire
Department
Department*
Police Protection
Alameda County Sheriff
Alameda County Sheriff
Department
Department* *
Schools
Dublin Unified School
Dublin Unified School
District
District
Parks
Alameda County/East Bay
City of Dublin/East Bay
Regional Park District
Regional Park District
Water /Sewer
Alameda County Water
Dublin San Ramon Services
District
District
Solid Waste
Waste Management
Amador Valley Industries
*City of Dublin contracts with Alameda County for fire protection
* *City of Dublin contracts with Alameda County Sheriff Department for police
protection
• Comment 2.4: Section XII on Population and Housing, p. 70 relies on the 1993/94
Eastern Dublin Specific Plan and General Plan, and does not address the City's
current affordable housing plan. These documents may be too dated for effective
use in this evaluation.
Response: The comment references the population and housing discussion on
page 70 of the MND. The MND updates population and housing information
based on the Department of Finance's 2008 figure.
As noted in the Initial Study, the project would not displace any housing or
people. As previously noted, the project reflects development proposed in a
limited area and is a substantial decrease in the number of units assumed in the
Eastern Dublin EIR (decrease of 64 units) and therefore would not have any
growth inducing impacts beyond those impacts identified in the EIR.
The provision of affordable housing is not a CEQA issue. The City of Dublin
does have an Inclusionary Ordinance and this project is not subject to it due to its
small size. Pursuant to Section 8.68.0.30 of the Dublin Zoning Ordinance,
residential development projects with 20 units or more are required to construct
12.5% of the total number of dwelling units as affordable units. The Eastern
Dublin EIR supplemented by the project MND adequately analyzes population
and housing issues under CEQA.
• Comment 2.5: In general, potential impacts, conflicts and inconsistencies should
be evaluated based on the change from the existing General Plan designations
(Alameda County's East County Area Plan), as opposed to the City of Dublin's
General and Specific Plans.
Response: The project site has been included in the City's General Plan and
Eastern Dublin Specific Plan since 1993. The Eastern Dublin EIR analyzed the
transition from rural residential and agricultural uses to residential uses. The
proposed project includes a request to change the existing land use designations
from Low Density Residential and Rural Residential /Agricultural to Estate
Residential and Open Space. The companion rezone will further reduce the
density on the site from the 68 units studied in the Eastern Dublin EIR to 4 units.
The lower density is compatible with the intent of the General Plan and Specific
Plan and allows for a project which will preserve open space and will cluster units
in less constrained areas of the project site.
• Comment 2.6: LAFCo's comprehensive agricultural, service, and annexation
policies are not reviewed and considered in the current IS/MND. Please address
this information in your Response to Comments.
Response: The commenter does not specifically identify or cite to the referenced
policies. As informational documents under CEQA, the EDEIR and the MND
identified and analyzed the potential for significant impacts related to conversion
of agricultural lands and provision of urban services to the Eastern Dublin
planning area. To the extent that the LAFCo factors and policies address
environmental issues, information on potential impacts and mitigations is
contained in the EDEIR and MND for LAFCo consideration. For example, the
Knox- Cortese- Hertzberg Act and LAFCo polices evince a strong interest in
preserving prime agricultural lands. The EIR and MND directly address and
analyze this issue, and based on the analyses, conclude that no prime agricultural
lands exist on the project site.
In response to the commenter's request and absent more specificity about the
applicable policies, the City provides the following listing and discussion of
31I + yt�o
LAFCo policies relating to agricultural and service policies regarding the
proposed project.
1.01 Agriculture and Open Space
1.0102. Agricultural land shall be determined to be prime based on soil
characteristics, potential for prime agriculture land designation if irrigated or
productivity
Discussion: Refer to Section II of the MND, which includes a recent site -
specific analysis of agricultural suitability of the Dublin Ranch North site
prepared by Berlogar Geotechnical Consultants. The Berlogar report and the
MND determined that the Dublin Ranch North site does not qualify as prime
agricultural land based on criteria included in the Knox- Cortese- Hertzberg
Act. Therefore, the proposed project would be consistent with this policy.
1.0103. LAFCO shall discourage proposals that encourage or support
urbanization outside of cities unless adverse public health and safety would
occur and there is no feasible proposal alternative.
Discussion: As identified in the above discussion section, the MND notes that
the Dublin Ranch North site does not qualify as prime agricultural land. This
property has been identified for future urban development in the Dublin
General Plan since 1993. This property is now being considered for
urbanization since properties surrounding three sides of the project area are
already in the City of Dublin and have already developed, are in process of
developing or have been approved for development. The Dublin Ranch North
project site includes the last two remaining parcels that are located with the
City's Sphere of Influence, but outside of the City Limits and represents a
logical extension of City boundaries. Therefore, the proposed project would
be consistent with this policy.
1.0104. LAFCo shall discourage city annexations of prime agricultural or
important open space areas if such areas are not needed for urbanization
within five years.
Discussion: The HIND notes that the Dublin Ranch North site does not qualify
as prime agricultural land and thus this policy does not apply to this
application.
1.0106. LAFCo will work to preserve agricultural and open space land
resources by considering the proposal's effect on important open space and
agricultural lands and by guiding development away from agricultural and
open space lands not planned or needed for development.
3l-� qo
Discussion: Portions of the Dublin Ranch North property have been
designated for residential land use since 1993 in the City of Dublin General
Plan. This is the portion requested for development. The majority of the
project site, 126.8 acres, is proposed to be placed in a permanent conservation
easement for the protection of wildlife. Therefore, the proposed project would
be consistent with this policy.
1.0107. Development or use of land for other than open space uses shall be
guided away from existing prime agricultural lands in open space towards
areas containing non -prime agricultural lands unless that action undermines
adopted county or city land use plans that include open space and agricultural
land conservation policies and plans.
Discussion: The Dublin Ranch North property does not contain prime'
agricultural lands as identified in the MND and portions of the property have
been designed for Low Density Residential land use n the Dublin General
Plan. The application to the City of Dublin requests that a portion of the
Dublin Ranch North property be re- designated to Estate Residential with the
balance of the site in Open Space. This Eastern Dublin Specific Plan, adopted
by the City in 1993 provides for Resource Management policies and programs
for open space preservation (Chapter 3.5). Therefore, the proposed project
would be consistent with this policy.
1.0108. Urbanization or nonagricultural use of existing vacant lots or prime
agricultural land areas within the jurisdiction of SOI of a local agency shall be
encouraged before any proposal is approved which would allow for or lead to
the development of prime agricultural or open space lands outside the
jurisdiction or SOI of any local agency.
Discussion: The project does not include prime agricultural lands, and is
already within the Sphere of Influence for both the City and DSRSD.
Additionally, the majority of the project site (126.8 acres) is proposed to be
placed in a permanent conservation easement and no development will occur
on this portion of the project site. Therefore, the proposed project is consistent
with this policy.
1.0109. LAFCO shall require that applications with prezones or SO proposals
identify areas set aside for agricultural or open space preserves and include
protections for adjacent agricultural land.
Discussion: The Applicant's Stage 1 and Stage 2 Development Plan and
Vesting Tentative Tract Map, indicates that 126.8 acres of the project site will
be designated as a permanent conservation easement. For the proposed Dublin
Ranch North project, the terms of the conservation easement would prohibit
construction of dwelling units within the easement area. Therefore, the
proposed Project would be consistent with this policy.
313 - Llgo
5.0 General City Annexation and Detachment Policies and Standards
5.14. The Commission shall seek to approve changes of organization that
encourage and provide well ordered, efficient development patterns that
include the appropriate preservation and conservation of open space and prime
agricultural lands within and around developed areas, and contribute to the
orderly formation and development of local agencies based upon local
circumstances and conditions.
Discussion: The City of Dublin believes the proposed Dublin Ranch North
Project is a well- designed project that is consistent with the Dublin General
Plan and Eastern Dublin Specific Plan. Adequate protection is provided for
the drainage that traverses the Project site through the Stage 1 and Stage 2
Development Plan and Vesting Tentative Tract Map, which maintains the
sensitive areas of the site in a permanent conservation easement.
5.15. The Commission shall consider existing zoning and prezones, general
plans and other land use plans, interests and plans of unincorporated
communities, SOIs and master service plans of neighboring governmental
entities and recommendations and determinations from related service review
agencies.
Discussion: The City of Dublin believes the proposed annexation is consistent
with this policy, inasmuch as the Dublin Ranch North property has been
included in the City's General Plan for Low Density Residential development
since 1993, is within both Dublin's and DSRSD's Sphere of Influence and
represents a logical extension of Dublin boundaries. There are no other
proximate governmental agencies that can provide the requested range of level
of service other than the City of Dublin.
5.17. LAFCo discourages the annexation of vacant land or the extension of
urban services unless there is a demonstrated near term (within five years)
need for services.
Discussion: As indicated above, other properties in the City of Dublin that
were recently annexed to the community are in the process of developing.
The City of Dublin therefore believes hat there is a need to annex the Dublin
Ranch North property at this time, as requested by the property owner and
consistent with the Dublin General Plan.
5.18. Prior to annexation to a city or special district, the petitioners shall
provide information demonstrating that the need for governmental services
exist, the annexation agency is capable of providing service, that a plan for
services exist and that the annexation is the best alternative to provide service.
1q HL!o
Discussion: As required by this policy, the City of Dublin's application for
annexation to LAFCo will be accompanied by a Plan for Services. The four
proposed building sites are in the western portion of the site, proximate to
approved residential development to the west. The location of the building
sites minimize the distance that utilities would be extended from the adjacent
development. The Project is therefore consistent with this Policy.
5.111. A proposed annexation shall be a logical and reasonable expansion to
the annexing district.
Discussion: The proposed action would compete the City of Dublin boundary
to the east, where the easterly annexation boundary would extend to the
Sphere of Influence. Also, the proposed annexation area lies within both the
City of Dublin and DSRSD approved Sphere of Influence, which recognizes
that the properties should be a part of Dublin. For these reasons, the proposed
Project is consistent with this policy.
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31� of 440
11 i 10 ' • W b I
(0) Z JFAJ Oj
General Plan /Eastern Dublin Specific Plan Amendments,
Stage 1 Planned Development Rezone,
Stage 2 Planned Development Rezone
Vesting Tentative Map
Prepared fora
Hong Yao Lin
Hong Lien Lin
Prepared by:
MacKay & Somps
RECEIVED
November 2009 DUBLIN PLANNING
Attachment 10
DUBLINRANCHNORTH
ANNEXATIONAREA
Table of Contents
Application Forms/Project Reference
Planning Application Form
Initial Study - Environmental Information Form, Part I
Project Reference
Vicinity Map
Aerial Photograph, Photo Key and Site Photographs
General Plan/Eastern Dublin Specific Plan Amendment
Project Description
Existing and Proposed Land Use Comparison
General Plan Amendment
Eastern Dublin Specific Plan Amendment
Stage 1 Planned Development & Stage 2 Planned Development
Project Description
Findings Statement
Stage 1 Development Plan
Stage 2 Development Plan
Preliminary Landscape Plan /Street Sections
Ownership and Maintenance Plan
Land Use and Design Standards
Permitted and Conditional Land Uses
Site Development Standards
Landscape and Open Space Standards
Architectural Design Standards
Vesting Tentative Map
Project Description
Title, Notes, Sheet Index, Details
Site and Utility Plan
Grading Plan
31- t qHh
Table of Contents
318 O� qL�o
CITY OF DUBLIN PLANNING APPLICATION FORM
NOTE: Please discuss your proposal with Planning Staff prior to completing this form. All items on this form related to your specific
type of application must be completed. Some of the items listed might not apply to your specific application. Please print or type
legibly. Attach additional sheets, if necessary.
If you are currently working with a Planner on a pre- application project, please schedule an appointment prior to submitting your
application.
I. TYPE OF APPLICATION:
Pre - application Review [Any type]
Sign/Site Development Review [SIGN /SDR]
Conditional Use Permit [CUP]
Master Sign Program [MSP /SDR]
Site Development Review [SDR] X
Planned Development Rezone [PD REZ]
Variance [VAR]
Rezone [REZ]
X Tentative Subdivision Map [T MAP] X
General/Specific Plan Amendment [GPA]
II. GENERAL DATA
A. Address/Location of Property: Fallon Road, approximately
1.5 miles north of I -580
B. Assessor Parcel Number(s): 985- 0028 - 003-02
C. Site Area 158 acres D. Zoning: Alameda County Zoning: Agriculture E. General Plan Designation:
Rural Residential/Agriculture, Low Density Residential
F. Existing/Proposed Use of Property: Cattle Grazing/Estate Residential and Open Space with
Conservation Easement, Water Agency Tank Facility
G. Existing Uses of Surrounding Properties: Medium and Low Density Residential, Open Space, Rural
Residential/Agriculture.
H. Within 1,000 feet of a military installation (Camp Parks)?
No I. Military Notification Required?)? No
III. AUTHORIZATION OF PROPERTY OWNER AND APPLICANT
A. PROPERTY OWNER: In signing this application, 1, as Property Owner, certify that 1 have full legal capacity to, and
hereby do, authorize the filing of this application. I understand that conditions of approval are binding. 1 agree to be
bound by those conditions, subject only to the right to object at the hearings or during the appeal period. I further
certify that the information and exhibits submitted are true and correct.
(Note: All Property Owners must sign if property is jointly owned)
W
Company:
Capacity:
Phone:( )
Email: Fax:( )
Address:
Date:
B. APPLICANT (OTHER THAN PROPERTY OWNER): In signing this application, I, as Applicant, certify that 1 have
obtained written authorization from the property owner and have attached separate documentation showing my full legal
capacity to file this application. 1 agree to be bound by the conditions of approval, subject only to the right to object at
the hearings or during the appeal period. I further certify that the information and exhibits submitted are true and
correct.
Name: Mr. James Tong Title: Authorized Representative
Company:
Email:
(925) 463 -1666
Fax: (925) 463 -9330
Address: 4690 Chabot Drive, Suite 100, Pleasanton, CA 94588
P: \19317 -0 \office \Submittals \PD 1 \PAF -2.doc
Name: Title: Authorized Representative
Company: Dublin San Ramon Services District(DSRSD) Phone: (925) 828 -0515
Email: Fax:
Address: 7051 Dublin Blvd. Dublin, CA 94568
Signature: Date:
P: \19317 -0 \office \Submittals \PD 1 \PAF -2.doc
-�Yo t yqo
Application Name: Dublin Ranch North — Request for Annexation/Attachment,
General Plan/Eastern Dublin Specific Plan Amendment, Stage 1
Planned Development Rezone, Stage 2 Planned Development
Rezone, Vesting Tentative Map, and Development Agreement
Initial Study
(ENVIRONMENTAL INFORMATION FORM - PART 1)
(To be completed by Applicant pursuant to City of Dublin
Environmental Guidelines Section 1.6)
Date Filed: rev. April 2009
GENERAL INFORMATION:
1. Name and address of authorized representative of property owner:
Mr. James Tong, 4690 Chabot Drive, Suite 100, Pleasanton, CA 94588
DSRSD, 7051 Dublin Blvd. Dublin,CA 94568
2. Address of Project: 6582 Tassaiara Road, approximately 1.5 miles north of
I -580
3. Name, address and telephone number of person to be contacted concerning this
proj ect:
Marty Inderbitzen Lisa Vilhauer
Attorney at Law MacKay & Somps
P.O. Box 1537 5142 Franklin Dr., Suite B
Pleasanton, CA 94566 Pleasanton, CA 94588
(925) 485 -1060 (925) 225 -0690
4. List and describe any other related permits and other public approvals
required for this project, including those required by city, regional, state and
federal agencies: Site Development Review, Regional Water Quality
Control Board NPDES Permit and Section 401- (Clean Water
Certification
5. Existing Zoning District: Alameda County Zoning: Agriculture
PA19317 -0 \office \Subm ittals \PD 1 \EIF -1.doc
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6. Description of Project: (Include site area, uses, size and number of buildings,
parking, number of dwelling units, scheduling, and any other information
necessary or helpful to understand project. This attached description must be
complete and accurate. Exhibits or photographs should be identified and
attached.)
Dublin Ranch North Annexation Area is an approximately 158 acre residential
and open space project. Four estate residential lots, totaling approximately 30
acres, will be surrounded by about 128 acres of open space that will be placed
into a permanent conservation easement for the protection of wildlife. The
Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin
Ranch North property. The Applicant is proposing to cluster development of 4
units in the northwestern portion of the project site, which results in the
reduction of 64 units on the site. The applicant has proposed that the unused 64
units be available for use in other portions of Dublin Ranch. Once an
appropriate site for the location of these 64 units has been identified, an analysis
of the site will determine what, if any, additional amendments and studies will
be required before the units may be approved for final location.
7. Are the following items applicable to the project or its effects? Discuss below
all items checked (attach additional sheets as necessary).
Yes No
X 1. Change in existing features of any bays, tidelands, beaches, lakes or
hills, or substantial alteration of ground contours.
_X 2. Change in scenic views or vistas from existing residential areas
or public lands or roads.
X 3. Change in pattern, scale or character of general area of project.
X 4. Significant amounts of solid waste or litter.
_X_ 5. Change in dust, ash, smoke, fumes or odors in vicinity.
_X_ 6. Change in ocean, bay, lake, stream or ground water quality or
quantity, or alteration of existing drainage patterns.
_X 7. Substantial change in existing noise or vibration levels in the vicinity.
_X_ 8. Site on filled land or on slope of 10 percent (10 %) or more.
X 9. Use or disposal of potentially hazardous materials, such as toxic
substances, flammables or explosives.
_X_ 10. Substantial change in demand for municipal services (police, fire,
water, sewage, etc.).
X 11. Substantial increase in fossil fuel consumption (electricity, oil,
natural gas, etc.).
X 12. Relationship to larger project or series of projects.
PM 9317 -0 \office \Subm ittals \PD 1 \EI F -1.doc
'�Z d, t � �(D
ENVIRONMENTAL SETTING:
8. Briefly describe the project site as it exists before the project, including
information on topography, soil stability, plants and animals, and any cultural,
historical or scenic aspects. Describe any existing structures on the site, and
the use of the structures. If necessary, attach photographs of the site.
See DEIR for Eastern Dublin GPA/Svecific Plan, pages 2 -2 and 2 -3 and
Eastern Dublin Specific Plan, pages 5 and 6. Also refer to attached
Photographs of affected land areas for data regarding existing site
conditions.
9. Briefly describe the surrounding properties, including information on plants
and animals, any cultural, historical or scenic aspects and the type of land use.
Refer to the Eastern Dublin Specific Plan, pages 5 through 7, DEIR for
Eastern Dublin GPA/Speciflc Plan, pages 2 -2.
CERTIFICATION: I hereby certify that the statements furnished above and in the
attached exhibits present the data and information required for this initial evaluation to
the best of my ability, and that the facts, statements and information presented are true
and correct to the best of my knowledge and belief.
Dated:
Signature
James Tong
Print Name
Authorized Representative
Title /Company
Signature
Print Name
DSRSD Representative
Title /Company
PA19317 -0 \office \Submitta1s \PD 1 \EIF -1.doc
383 t +0
Discussion of applicable items relevant to the project as identified in Item 7.
1. Change in existing features of any bays, tidelands, beaches, lakes or hills, or substantial
alteration of ground contours.
Portions of the residential area will be graded to allow the provision of vehicular access and
development envelopes. Approximately 10 acres of the 157.7 acre project site will be
disturbed by grading. This includes approximately 7 acres to create the access road and the
building pads and an additional 3 acres for remedial grading as recommended by the
geotechnical engineer.
2. Change in scenic views or vistas from existing residential areas or public lands or roads.
Four estates and an access road will be placed upon a hillside.
6 Change in ocean, bay, lake, stream or ground water quality or quantity, or alteration of
existing drainage patterns.
Portions of the residential area will be graded to allow the provision of vehicular access and
development envelopes, thus changing water quality and existing drainage patterns.
8. Site on filled land or on slope of 10 percent (10016) or more.
Site grading will create areas of fill and occur on slopes greater than 10% gradient.
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Dublin Ranch North Annexation Area • November
2009
Dublin Ranch North Annexation Area
Written Statement
for a General Plan /Eastern Dublin Specific Plan Amendment
Introduction
The Dublin Ranch North Annexation Area is an estate residential and open space
project comprised of two properties totaling approximately 157.7 acres within the
Eastern Dublin General Plan Amendment area. The first property, the Dublin Ranch
North Lin Property (formally known as the Redgewick Property) is 157.2 acres. The
second property is a .5 acre parcel owned by DSRSD and consists of a Zone 3 DSRSD
water tank and access road. There is no further development proposed on the DSRSD
parcel. The property is currently within Alameda County, and is the last remaining
development parcel within the Eastern Dublin Specific Plan area to be annexed into the
City. The amendments are being requested to redesignate the uses from Low Density
Residential and Rural Residential /Agriculture to Estate Residential and Open Space to
reflect the placement of a conservation easement on the majority of the Dublin Ranch
North property and the resulting residential densities. The Eastern Dublin Specific Plan
assumed the development of 68 units on the Dublin Ranch North property. The
Applicant is proposing to cluster development of 4 units in the northwestern portion of
the project site, which results in the reduction of 64 units on the site. The applicant has
proposed that the unused 64 units be available for use in other portions of Dublin
Ranch. Once an appropriate site for the location of these 64 units has been identified,
an analysis of the site will determine what, if any, additional amendments and studies
will be required before the units may be approved for final location.
This General Plan and Eastern Dublin Specific Plan amendment submittal is being
processed concurrently with a Stage 1 Planned Development Rezone, Stage 2 Planned
Development Rezone, and Vesting Tentative Map applications; request for Annexation
to the City of Dublin and DSRSD, a Development Agreement and a Pre - Annexation
Agreement.
The project site is located near the northerly end of Fallon Road, and is bisected by a
tributary to Tassajara Creek referred to as the Northern Drainage and sits north of
Dublin Ranch Area A. The site abuts Phase 4 of Silvera Ranch and Tassajara
Crossings to the west, Casamira Valley to the north, and Alameda County (Doolan
Canyon) to the east.
Specific amendments to the General Plan and Eastern Dublin Specific Plan are
included with this submittal and can be found in the following documentation.
Pagel • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
LA a
2009
a. List the proposed changes to General Plan /Specific Plan designations and
policies, as needed.
Following are the primary reasons for the map and text changes. Please refer to the
attached sheets for greater details of the changes to be made.
1. Redesignate and rezone the Rural Residential /Agriculture use to PD -Open Space.
2. Amend the Eastern Dublin Specific Plan to include Estate Residential, a designation
permitted under the Dublin General Plan.
3. Redesignate and rezone Single Family Residential to PD- Estate Residential.
b. Reasons for proposing General Plan /Specific Plan Amendment.
The General Plan and Eastern Dublin Specific Plan currently designate the majority
of the site to be Rural Residential /Agriculture (143.2 acres). This designation could
affect the existing natural conditions on the property by not adequately protecting
the sensitive environmental features on the site. The current development plan
proposes to redesignate this land use to PD -Open Space. This would allow for the
protection, management, and health of the environmental systems currently in place
on the site and those to be added, while eliminating the one rural residential unit
from the site. A conservation easement will be placed upon the Dublin North
Property Open Space Parcel and will remain in perpetuity.
2. The Eastern Dublin Specific Plan residential land use categories experience a gap
of densities between the different designations. Specifically, Rural
Residential /Agriculture's density is only listed as 0.01 du /ac and then the density
jumps to Single Family with a density range of 0.9 to 6.0 du /ac. This creates a
density gap between 0.01 and 0.9 units per acre, which is where this project density
proposal falls. The specific plan states that "In situations where policies or
standards relating to a particular subject have not been provided in the Specific
Plan, the existing policies and standards of the City's General Plan and Zoning
Ordinance will continue to apply." This permits all use designations and policies
under the General Plan to be applied, of which the designation Estate Residential,
with a density range of 0.01 -0.8, is appropriate. The zoning for the residential
component of this Project is proposed to be PD- Estate Residential. The Eastern
Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch
North property. The Applicant is proposing to cluster development of 4 units in the
northwestern portion of the project site, which results in the reduction of 64 units on
the site. The applicant has proposed that the unused 64 units be available for use in
other portions of Dublin Ranch. Once an appropriate site for the location of these 64
units has been identified, an analysis of the site will determine what, if any,
additional amendments and studies will be required before the units may be
approved for final location.
Page 2 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
Dublin Ranch North Annexation Area • November
2009
c. How will the General Plan /Specific Plan Amendment benefit the City of
Dublin?
1. The proposed land use revisions will create a project that is compatible with existing
site conditions. These amendments will enhance the natural environment by
preserving sensitive environments and tributary corridors, and protecting certain
animal species by providing natural areas that are placed under a conservation
easement.
2. Land uses are arranged in a more appropriate pattern to relate to existing site
conditions, environmental and infrastructure constraints, and City goals and
policies. The proposed plan is more sensitive and functional because of this.
3. By adjusting the development area and densities on these properties, the resulting
land plan will provide a physical and visual continuation of the open space and
rolling hills in the East Dublin area. The lands upon which the transferred
residential units are placed will be more suitable for development in terms of
physical constraints and location.
4. The proposed project improves upon the current land use designations by
considering more accurate and current topographic maps, surveys, and
environmental concerns to determine the actual limits of development.
d. Address each element of the General Plan and policy of an applicable Specific
Plan of the City of Dublin and describe how each element/policy will be affected
by the proposed amendment.
Applicable General Plan Elements:
Land Use Element
• Revises and adjusts land use designations on project area.
• Exchanges Rural Residential /Agriculture to Open Space on project site.
• Reduces the number of residential units of this project and relocates to more
appropriate sites.
Parks and Open Space Element
• Continues preservation of open space and natural resource policies.
• Provides permanent open space area.
• Preserves rolling hills.
Environmental Resources Management - Conservation Element
• Protects and creates riparian vegetation within tributary corridors.
• Preserves and increases habitat values.
• Preserves and enhances aesthetic resources.
Page 3 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
Dublin Ranch North Annexation Area • November
2009
Eastern Dublin Specific Plan Policies: L1�
Policy 4 -1: Maintain a reasonable balance in residential and employment - generating
land uses by adhering to the distribution of land uses depicted in Figure 4 -1, Land Use
Map.
Proposed land uses are generally those depicted in Figure 4 -1. The proposed project
creates an environmentally superior alternative to the Specific Plan. The Eastern
Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North
property. The Applicant is proposing to cluster development of 4 units in the
northwestern portion of the project site, which results in the reduction of 64 units on the
site. The applicant has proposed that the unused 64 units be available for use in other
portions of Dublin Ranch. Once an appropriate site for the location of these 64 units
has been identified, an analysis of the site will determine what, if any, additional
amendments and studies will be required before the units may be approved for final
location.
Policy 4 -5: Concentrate residential development in the less environmentally constrained
portions of the plan area, and encourage cluster development as a method of reducing
or avoiding impact to constrained or environmental sensitive area. Also consider the
use of Transfer of Development Rights (TDR's) in areas designated as Rural
Residential /Agriculture or Open Space.
This plan proposes the relocation and concentration of residential development from an
environmentally constrained site to ones less environmentally constrained. Lands
where the units are transferred from, and not reserved for proposed residential uses,
will be rezoned to Open Space. Proposed units are limited to the west facing hill on the
project in the northwestern corner.
Policy 4 -26: Maintain sufficient land for housing in reasonable relationship to jobs
(employment generating uses) in the eastern Dublin area.
Although the residential density and units designated for this site will be reduced, these
units are not lost. Rather, they will be transferred to a more compatible site for
development. Alternative sites within Dublin Ranch are closer to employment
generating uses, services, and retail uses than the originally designated site on Dublin
Ranch North Annexation Area.
Policy 6 -1: Establish a continuous open space network that integrates large natural
open space areas, stream corridors, and developed parks and recreation areas.
The elimination of Rural Residential /Agriculture and the subsequent use of PD -Open
Space ensures the provision, preservation and management of a permanent open
space area and corridor that links to other eastern Dublin open space areas and to the
City as a whole.
Policy 6 -2: Locate development so that large, continuous open space areas /corridors
are preserved. Avoid creating open space islands. Encourage single loaded streets in
areas adjacent to open space, rural residential, and agricultural lands.
See above comments to Policy 6 -1.
Page 4 - General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
Dublin Ranch North Annexation Area • November
2009
Policy 6 -9: Natural stream corridors, ponds, springs, seeps, and wetland area f, as
shown in Figure 6. 2, shall be preserved wherever possible...
See above comments to Policy 6 -1.
Policy 6 -10: Riparian and wetland areas shall be incorporated into greenbelt and open
space areas as a means of preserving their hydrologic and habitat value...
See above comments to Policy 6 -1.
e. Describe how the proposal will be compatible with surrounding land uses,
enhance the development of the general area, and create an attractive and
safe environment.
The Proejct is surrounded by a range of uses extending from urban to rural. To the
south, Dublin Ranch Area A, Golf Course and Phase 1 are developed with low density
residential, recreational, and open space uses. To the west are Silvera Ranch, a
residential project under construction and partially occupied and Standard Pacific, an
approved PD residential project. These projects at completion will be comprised of
varying low and medium residential densities and open space uses. To the north is the
Casamira Valley, an approved PD1 residential project, designated for residential and
open space uses. To the east, Alameda County lands are currently being used for
grazing and rural residential. The proposed project will continue and enhance these
existing and future uses.
Development of the project area will be harmonious with existing and future
development. The site plan for the Dublin Ranch North Annexation Area adheres to the
intent of the General Plan and the Eastern Dublin Specific Plan's goals and policies.
This will ensure that the project will be compatible, both in terms of land use and
physical design, with adjacent development. The proposed mix of estate residential
development and preserved open space will naturally blend with the neighboring
residential developments and open space areas to create a livable and cohesive
project. Additionally, units will be removed from the ridgeline, preserving this important
open space feature and view shed element.
The following chart indicates the proposed land uses and densities for the project as
compared to the currently designated land uses in the General Plan and Eastern
Dublin Specific Plan.
Dublin Ranch North
Existing General Plan/
Eastern Dublin Specific
Plan Land Use
Proposed General Plan/
Eastern Dublin Specific
Plan Land Use
Gross
Acres
Units
Gross
Density
Acres
Units
Gross
Density
Estate Residential
- - - - --
- - - - --
- - - - --
30.4
4
.13
Low Density Residential
16.8
67
4
- - - - --
- - - - --
- - - - --
Rural Residential/Agriculture
143.2
1
.01
- - - - --
- - - - --
I - - - - --
Page 5 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
Dublin Ranch North Annexation Area • November
2009 J l t ! 1D
Open Space - - - - -- - - - - -- - - - - -- 127.3 - - - - -- I - - - - --
TOTAL 160.0 68 - - - - -- 157.7 4 1 - - - - --
The residential portion of the project is proposed as estate residential lots. These units
will be designed to take full advantage of the natural features of the site while creating
minimal impacts to these features. This will be evident in the juxtaposition of units to
open space and topography, and site grading which will strive to follow the natural
contours of the existing landscape.
Dublin Ranch North properties are the last development parcels in the eastern portion
of the City's Sphere of Influence and Eastern Dublin Specific Plan area that has not
been annexed into Dublin. By undergoing this process, the project will complete the
vision of the Eastern Dublin Specific Plan and Dublin General Plan.
f. Discuss the physical suitability of the site for the type and intensity of the land
uses proposed.
The project site is physically suitable for the type and intensity of land use designations
being proposed. The vast majority of the project area will be Open Space. This use
takes advantage of the natural features of the site and will preserve and maintain them.
A portion of the site is designated for Estate Residential. This development will be
clustered on the west facing slope on the site, making use of existing, approved and
logical infrastructure and vehicular access. With the reduced intensity of development,
greater sensitivity can occur in siting and grading.
Berlogar Geotechnical Consultants prepared a Feasibility Level Geotechnical
Investigation report for the property. Based on their research, the document states that
the proposed development is feasible if grading recommendations proposed in the
report are followed. Further research by Berlogar found that no earthquake faults are
mapped on the property. A Phase I Environmental Site Assessment prepared by
Eckland Consultants in 2003 found that no hazardous materials exist on site or within
the applicable radius for study.
g. The potential of the property where the project is proposed located to contain
a hazardous waste and substances site (pursuant to Government Code Section
65962.5).
A Phase 1 Environmental Site Assessment has been conducted on the subject property
by Eckland Consultants. According to the Assessment completed, no registered
hazardous waste or substance sites are known to exist on the property, nor have any
hazardous materials been discovered within or near the project site. A copy of this
report has been submitted to the City and is incorporated in the Mitigated Negative
Declaration prepared for the project. .
Page 6 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement
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Dublin Ranch North Annexation Area
Dublin General Plan Amendment
The following are proposed amendments to the Dublin General Plan:
CHAPTER 1: BACKGROUND
Section 1.8.1 Land Use Classifications, Eastern Extended Planning Area (page
9).
Add to the Residential category:
Residential: Estate (0.01 -0.8 units per -gross residential acre).
Typically ranchettes and estate homes are within this density range. Assumed
household size is 3.2 persons per unit.
Figure 1 -1a
Update Figure to change Dublin Ranch North Property from Rural
Residential /Agriculture and Single Family to Estate Residential and Open Space.
Figure 1 -2
Remove portion of Rural Residential /Agricultural lands within proposed Project
Area.
CHAPTER 2: LAND USE AND CIRCULATION: LAND USE ELEMENT
Update in EASTERN DUBLIN EXTENDED PLANNING AREA:
Table 2 -1: Amend Table 2 -1 by:
Add Estate Residential use with 30.4 acres and 4 units.
Add 127.3 acres to Open Space.
Remove 16.8 acres and 3 units from single family.
Remove 143.2 acres and 1 unit from Rural Residential /Agricultural.
Appendix A
Add this project to list of Amendments and Approvals:
Dublin Ranch North, Resolution No., Date Adopted, and GP updated.
PA 19317 -0 \office \Submittals \GP - SPA \GPA- DRNo -1- REV- 20080912.doc
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Dublin Ranch North Annexation Area
Eastern Dublin Specific Plan Amendment
The following are proposed amendments to the Eastern Dublin Specific Plan:
CHAPTER 2: PLANNING AREA DESCRIPTION
Figure 2.4 Owner
Update to reflect current owner of Dublin Ranch North Property from Redgewick to Lin.
Add DSRSD as owner.
Update acreage of Dublin Ranch North Property to 157.2 acres.
Update acreage of DSRSD Parcel to 0.5 acres.
CHAPTER 3: SUMMARY
3.3.3 Land Use Categories
Residential
Change language to read:
The Residential land use category has six classifications: High Density (HDR), Medium -
High Density (MHDR), Medium Density (MDR), Single Family (SF), Estate
Residential(ER), and Rural Residential /Agricultural (RRA).
CHAPTER 4: LAND USE
Table 4.1: LAND USES
Amend table 4.1 by:
Add Estate Residential use with 30.4 acres and 4 units.
Add 127.3 acres to Open Space.
Remove 16.8 acres and 3 units from Single Family.
Remove 143.2 acres and 1 unit from Rural Residential /Agricultural.
Table 4.2- POPULATION AND EMPLOYMENT SUMMARY
Amend Table 4.2 by:
Add Estate Residential Use with 4 units.
Remove 3 Units from Single Family and 1 Unit from Rural Residential /Agricultural
4.8.1 Residential
Add:
Estate Residential (0.01 -0.8 units per -gross residential acre).
Typically ranchettes and estate homes are within this density range. Assumed household
size is 3.2 persons per unit.
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Table 4.10: Amend Table 4.10 by:
Add Estate Residential use with 30.4 acres and 4 units.
Add 127.3 acres to Open Space.
Remove 16.8 acres and 4 units from Single Family.
Remove 143.2 acres and 1 unit from Rural Residential /Agricultural.
Figure 4.1— Update figure to change Dublin Ranch North from Single Family and Rural
Residential to Estate Residential and Open Space.
CHAPTER 5: TRAFFIC AND CIRCULATION
5.1.1 Existing Roads
Figure 6.1 — Update figure to show Project's change to Estate Residential and Open
Space uses.
Figures 6.2 and 6.3 — Update to show current environmental information on the Project
site.
APPENDIX 3: Foothill Residential Table
Add Estate Residential use with 30.4 acres and 4 units.
Add 127.3 acres to Open Space.
Remove 16.8 acres and 3 units from Single Family.
Remove 143.2 acres and 1 unit from Rural Residential /Agricultural.
APPENDIX 4
Change Owner name to Lin from Redgewick.
Add Estate Residential with 30.4 acres and 4 units.
Add Open Space with 126.8 acres.
Remove Single Family Residential and Rural Residential /Agri cultural.
Add DSRSD to Owner list:
Add Open Space with .5 acres.
P: \19317- 0 \ollice \Submittals \GP - SPA \EDSPA- DRNo- I- REV20080912.doc 2
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Dublin Ranch North Annexation Area - November 2009
Dublin Ranch North Annexation Area
Rio l 0� 1-1 qa
Stage 1 and Stage 2 Planned Development Rezones
Written Statement and Findings
Introduction
The Dublin Ranch North Annexation Area consists of approximately 157.7 acres within
the Eastern Dublin General Plan Amendment/Specific Plan area. The Project Area is
comprised of two properties, the 157.2 acre Dublin Ranch North Lin parcel (formally the
Redgewick property) and the .5 acre DSRSD parcel. At this time, the project site is a
part of Alameda County, and is outside the current boundary for the City of Dublin. The
proposed project includes a request for a General Plan /Eastern Dublin Specific Plan
Amendments, Planned Development Rezones (Stage 1 and 2), Vesting Tentative Map,
Development Agreement, request for annexation to the City of Dublin and DSRSD and
a Pre - Annexation Agreement. Dublin Ranch North is located just north of Dublin Ranch
Areas A and D, east of the Standard Pacific and Silvera Ranch properties, south of the
Richey & Hunter (Casamira Valley) property, and west of the Doolan Ranch West
property. Except for Dublin Ranch and the Silvera Ranch projects (which are
developed or under construction), these lands are currently used for cattle grazing and
rural residences. However, both the Ritchey and Hunter and Standard Pacific
properties are currently undergoing or recently underwent processes to rezone, annex,
and develop the properties for residential neighborhoods.
Annexation of the Dublin Ranch North parcels will bring the last of the unincorporated
lands of the Eastern Dublin Specific Plan area into the City. Planned land uses include
estate residential density uses on the northwestern corner, and open space on the
remaining 127.3 acres. The Eastern Dublin Specific Plan assumed the development of
68 units on the Dublin Ranch North property. The Applicant is proposing to cluster
development of 4 units in the northwestern portion of the project site, which results in
the reduction of 64 units on the site. The applicant has proposed that the unused 64
units be available for use in other portions of Dublin Ranch. Once an appropriate site
for the location of these 64 units has been identified, an analysis of the site will
determine what, if any, additional amendments and studies will be required before the
units may be approved for final location.
Existing Site Conditions and Land Uses
The Dublin Ranch North Lin property is currently vacant and is used for cattle grazing
and as environmental mitigation sites for earlier phases of Dublin Ranch. The 0.5 acre
DSRSD parcel has a Zone 3 DSRSD water tank and access road built on it. No further
Page 1 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
IF
Dublin Ranch North Annexation Area • November 2009
L40o� 0� OqD
development is proposed on the DSRSD parcel. The properties are not under a
Williamson Act contract. The majority of the Dublin Ranch North – Lin property has
been designated as biological mitigation lands for earlier portions of Dublin Ranch, and
a conservation easement is being placed upon these lands. No residence or other
structures occur on the property.
The property has a number of unique physical features. The western portion of the site
consists of a fairly large ridge that runs in a north -south direction separating the 30.4
acre site proposed for development of the 4 lots from the 127.3 acre site designated for
mitigation purposes and the DSRSD parcel. East of the ridge, the landform drops
gradually into a valley with an unnamed tributary referred to as the "Northern Drainage"
that flows to Tassajara Creek. This tributary flows through the center of the project in a
southwest direction. A large stock pond sits midway along the drainage. The width and
depth of the tributary varies along its length. A few eucalyptus and other trees grow
along the edge of the tributary. The hillsides and valley lands are covered primarily with
non - native grassland vegetation. The lowest elevation of the project area is
approximately 560 feet above sea level, while the highest elevation is at approximately
890 feet. Much of the Dublin Ranch North property is comprised of rolling foothills, with
slopes of less than 30 %. Slopes greater than 30% do, however, appear along the
central valley's hillsides.
Approximately 126.8 acres of the property will be placed in a conservation easement as
part of the Northern Drainage Conservation Area. The .5 acre DSRSD parcel is
proposed to remain unchanged. The remaining approximate 30.4 acres of the Project
drains away from the Northern Drainage and is not within the protected area —this is
the area designated for development.
A Feasibility Level Geotechnical Investigation was completed for the Development
portion of the Dublin Ranch North property by Berlogar Geotechnical Consultants on
May 18, 2009 as well as a follow -up study on October 1, 2009. A Biological Resources
Assessment was prepared by WRA on June 2, 2009 to evaluate the development area
of the site for biological resources. Please refer to these reports for additional
information on the Property.
Federal Emergency Management Agency (FEMA) FIRM map Community Panel
Number 060001 C0326G, dated revised August 3, 2009 for Alameda County
(unincorporated areas), indicates that the properties do not lie in the 100 -year flood
zone.
Eckland Consultants conducted a Phase 1 environmental site assessment of the Dublin
Ranch North – Lin Property to investigate the potential for on -site hazardous wastes or
substances. Eckland's assessment indicates that the property is not known to contain
hazardous wastes or substances. The study concluded that the property has a low
likelihood that any hazardous or toxic substances exist on the site. Eckland
recommends no additional investigation at this time.
Page 2 Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
VW
Dublin Ranch North Annexation Area • November 2009
LAOSt+)
Except for the proposed lots, most of the property is hidden from view from adjacent
properties and arterial streets. Ridgelines along the boundary of Dublin Ranch Areas
D and A to the south, and along the Richey and Hunter parcel to the north conceal
most views of and into Dublin Ranch North Annexation Area. It is only from certain
vantage points along Fallon and Tassajara Roads that limited views into the central
valley or onto the first range of western facing hills are available.
Proposed Land Uses and Development Concept
The Dublin General Plan and Eastern Dublin Specific Plan propose that the entire site
be rural residential /agriculture with the exception of a low density neighborhood that
starts on the western edge and arcs upward into the site along the westernmost
ridgeline. The proposed PD Rezones modify the General Plan and Eastern Dublin
Specific Plan by refining the land plan to respect the introduction of the mitigation
lands, utility service requirements, and create a project unlike any other in the City.
The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin
Ranch North property. The Applicant is proposing to cluster development of 4 units in
the northwestern portion of the project site, which results in the reduction of 64 units on
the site. The applicant has proposed that the unused 64 units be available for use in
other portions of Dublin Ranch. Once an appropriate site for the location of these 64
units has been identified, an analysis of the site will determine what, if any, additional
amendments and studies will be required before the units may be approved for final
location.
Due to the resulting density, the residential area will be rezoned from Low Density to
Estate Density Residential. Approximately 80% of the Project will remain undeveloped
and will remain as natural open space.
The following chart indicates the proposed Stage 1 and Stage 2 PD Rezone land uses
and densities for the project, and as currently represented in the General Plan and
Eastern Dublin Specific Plan.
Dublin Ranch North
Proposed PD Rezone
Land Use Plan
(Net and Gross Acreage
Calculations are the same)
Existing General Plan/
Eastern Dublin Specific
Plan Land Use Plan
Acres
Units
Density
(du /ac)
Acres
Units
Density
(du /ac)
Estate Residential
30.4
4
.13
-
-
-
Low Density Residential
-
-
-
16.8
67
4
Rural Residential / Agriculture
-
-
-
143.2
1
.01
Open Space
127.3
-
-
-
-
-
TOTAL
157.7
4
1 N/A
160.0
68
N/A
The four units are intended to provide a county estate character of homes on lots
ranging from approximately 4.5 acres to approximately 13 acres, with designated
Page 3 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
W
Dublin Ranch North Annexation Area - November 2009
t. q q 13
building envelopes. Development will be designed to take full advantage of the natural
features of the sites and to avoid impacts on environmental resources. Residential
dwelling units are a compatible use adjacent to a managed environmental area and
development areas will be located away from the Northern Drainage. Additionally, the
configuration and boundary of the residential parcel has been modified to not extend
into the conservation easement area, plus keep all development below the Eastern
Extended Planning Area development elevation cap (770') and within DSRSD's service
area (up to 770').
The majority of the site that is designated as open space will be a permanently
managed environmental area. These lands will be placed in a conservation easement
and will be managed consistent with a Mitigation and Monitoring Plan approved by
environmental agencies.
Access and Circulation
Access into the property will be provided from a public street, Cydonia Ct. in the Silvera
Ranch property, which has access from both Fallon Road and Tassajara Road. From
this cul -de -sac, a single residential driveway will serve the four Dublin Ranch North
units. The site design and street lengths illustrated on the PD Rezone site plans and
Vesting Tentative Map have been reviewed and approved by the Alameda County Fire
Department, who provides service to the City of Dublin.
Proposed Phasing Approach
The Project will be developed in one phase. Timing for the phasing of this project will
depend on market demand and the provision of access and utilities from adjacent
properties. All necessary site grading, storm drainage, sewer, and water improvements
will be provided in a timely manner and concurrent with development.
Utility Services
Dublin San Ramon Services District (DSRSD) will provide water and wastewater to the
Project. No recycled water service is required of the project. The properties are not
currently within DSRSD's service area, but is in DSRSD's Sphere of Influence and will
be annexed into DSRSD's service area concurrently with the annexation of the
properties to the City of Dublin. These services are planned in accordance with the
DSRSD Eastern Dublin Facilities Master Plan (and /or subsequent revisions) that
includes the proposed project area. Existing on- and off -site water storage reservoirs
and pumping stations will provide water service for the Project through buildout. Water
mains will be located in streets. The Master Infrastructure Map included as part of this
submittal is based on the most current study provided by DSRSD and differs only
slightly from what was shown in the Eastern Dublin Specific Plan's conceptual
backbone and facilities system plans. Final locations and sizing of these facilities will
be in accordance with the standards and recommendations of DSRSD. Utility
connections will be made to adjoining downstream properties which have had utilities
Page 4 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
rh.4
Dublin Ranch North Annexation Area • November 2009
X105 b LI�ID
sized to handle this project. Tassajara Road and Fallon Road are the main utility
corridors for the area.
Sewer service for the Project Area will require connection to DSRSD's existing sewer
system and sewer treatment will occur at DSRSD's treatment plant. Final sizing and
location of sewer facilities will be determined in conjunction with DSRSD.
An on -site bio -swale will collect storm runoff, treat it and will direct these flows to the
existing main lines of adjacent development. The actual sizes and locations of
proposed storm drain facilities will be determined with each incremental project's
improvement plans. As the Project Area is within the Zone 7 Drainage Study Area, its
expected flows are anticipated and planned for by Zone 7 and the City of Dublin and
the project's facilities will be sized appropriately.
A strategy for maintaining the quality of storm water runoff for the Project, once
development occurs, will be determined in conjunction with the City of Dublin. In
accordance with the Regional Water Quality Control Board's Alameda County
Municipal NPDES permit for stormwater, a series of best management practices
(BMPs) will be designed to mitigate the introduction of pollutants associated with
development into downstream watercourses. The primary focus of water quality design
is to direct "first flush" runoff, typically containing the highest pollutant load, into surface
treatment facilities.
In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar
determined that there are no landslides within the development area. Development in
hillside areas is carefully regulated under the Eastern Dublin Specific Plan to insure
that hazardous hillside conditions are avoided or remedied. The Federal Emergency
Management Agency (FEMA) FIRM community panel map 06001 C0326G, dated
revised August 3, 2009 for Alameda County does not indicate flooding or flood zones
on the property.
Inclusionary Zoning Ordinance
Dublin's Inclusionary Zoning Ordinance requires new residential projects that provide
20 units or more include 12.5% affordable product to those of very low, low, and
moderate income or pay an in -lieu fee which would allow the City to facilitate
construction of such housing. As this project provides only four (4) units, this project is
exempted from complying with the Inclusionary Zoning Ordinance.
Benefits and Costs
This project will allow for the construction of residential units as anticipated by the
Eastern Dublin Specific Plan and General Plan, increasing the assessed value of the
City. Future residents will strengthen the market for adjacent commercial uses
projected to occur in accordance with the Eastern Dublin Specific Plan. This, in turn,
will increase sales tax revenue for the City of Dublin.
Page 5 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
w
Dublin Ranch North Annexation Area • November 2009
L1 D(a o f LA i 0
The provision of a large extent of permanent open space and habitat will contribute to
the rural character of the City and provide a visual amenity to residents and visitors,
while also preserving the natural environment. This project would preserve local
ridgelines and the natural character of the area, providing a psychological and
emotional respite from the adjacent neighborhoods.
All infrastructure required for development of the proposed project and all capital facility
costs will be paid for by the project proponents as development proceeds. As is typical
of development requirements in Dublin, project proponents will dedicate land required
for roads, construct roads, and contribute funds as required through the City's Traffic
Impact Fee program. School fee and park in -lieu fee programs will, likewise, be
complied with. Furthermore, normal expenditures for City services (fire, police,
recreation, general administration, etc.) will be compensated by the development
through required fees and property tax revenues. It is anticipated that property tax
revenues, along with increased local sales tax attributed to the Project, will cover the
public service costs.
Page 6 - Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
W
Dublin Ranch North Annexation Area • November 2009
Findings
*1 '+ qqo
A. The proposal will be harmonious and compatible with existing and future
development in the surrounding area.
The project will be harmonious and compatible with existing and future
development and open space plans. The site plan for the Dublin Ranch North
Annexation Area Project adheres to the General Plan's and the Eastern Dublin
Specific Plan's goals and policies. This will ensure that the project will be
compatible, both in terms of land use and physical design, with adjacent
development.
B. The site is physically suitable for the type and intensity of zoninq districts being
proposed.
The site is physically suitable for the type and intensity of zoning districts being
proposed. The vast majority of the project area will be undeveloped to recognize
the natural features of the site and to preserve and maintain them. A small
portion of the site, approximately 20 %, will be developed as estate residential.
This development is isolated to the northwestern west facing hill on the site, and
will make use of adjacent logical vehicular access point from Cydonia Ct. This
development pattern is similar to that designated in the General Plan and
Eastern Dublin Specific Plan (EDSP), but has been refined to respect the
environment and infrastructure requirements, while reducing the density of
development.
A tributary to Tassajara Creek, referred to as the "Northern Drainage" runs
through the central portion of the site. Avoiding this corridor and the lands
designated as conservation lands will ensure that the project will not adversely
affect the environment and will provide prolonged stability for wildlife and their
habitats.
In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar
determined that there are no landslides within the development area. Berlogar
Geotechnical has determined that there are no faults located on the site per
available record surveys. No portions of the site are within the 100 year flood
area per FEMA's Firm Map No. 06001 C0326G, dated August 3, 2009. No
hazardous materials exist on the property.
C. The proposal will not adversely affect the health or safetv of persons residing or
working in the vicinity, or be detrimental to the public health safety, and welfare
The proposed project is consistent with the General Plan and Eastern Dublin
Specific Plan's ordinances for public health, safety, and welfare. The project is
not anticipated to produce noxious odors, hazardous materials, or excessive
Page 7 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
Dublin Ranch North Annexation Area • November 2009
CADV + MD
noises. There are no landslides present within the development area. According
to FEMA firm map panel No. 06001 C0326G, dated revised August 3, 2009, the
property does not lie within the 100 -year flood zone.
The proposed development project is not anticipated to adversely affect the
health or safety of persons residing or working in the vicinity, nor is it detrimental
to public health, safety or welfare. Development in hillside areas is carefully
regulated under the Specific Plan to insure that hazardous hillside conditions are
avoided or remedied. Additionally, no hazardous materials have been found to
exist on the property.
D. The proposed uses for the site are consistent with the elements of the City of
Dublin General Plan and the Eastern Dublin Specific Plan.
This Planned Development Rezone is consistent with the intent of the General
Plan Amendment and the Eastern Dublin Specific Plan Land Use Plans, and the
minor differences will be amended in the General Plan and Eastern Dublin
Specific Plan for consistency.
E. The oroiect satisfies the purpose and intent of a "Planned Development" as
outlined in Chapter 8.32 of the Municipal Code.
• The site will be planned as a comprehensive and distinct project and will
have development and design standards tailored to the specific needs of the
site.
• The proposed project's design will incorporate flexibility and diversity in the
development of the property by providing a combination of residential and
open space uses.
• The project proposes a mix of uses which, when compared to the General
Plan and the Eastern Dublin Specific Plan, is consistent with the intent of
those documents.
• The project protects the integrity of the residential and non - residential areas
of the City of Dublin. Approximately 80% of the project area has been
retained as open space, and will be maintained in perpetuity in a
conservation easement protecting the sensitive and environmentally
attractive features of the site. Residential uses are clustered in the west
facing hill on the site so as to minimize site grading and maintain the
character of the area.
• The proposed project will be designed to blend with the natural features
unique to the site through the use of site design and planning. This will
Page 8 • Stage 1 and Stage 2 Development Plan Rezones - Written Statement and Findings
Dublin Ranch North Annexation Area •November 2009
identify the site as a project whose offerings exceed what is available from
conventional development.
• This project will enhance the existing environment, offer coordinated and
coherent housing opportunities, and create desirability beyond what currently
exists on the property. The proposed project will become an asset to the City
of Dublin.
Page 9 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings
T
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DUBLIN RANCH NORTH
LAND USE AND DESIGN STANDARDS
The Dublin Ranch North Land Use and Design Standards are designed to provide guidance for
the homeowner and their architect and landscape designer. The Dublin Ranch North Property
is designed as a unique neighborhood for Eastern Dublin as four estate lots on 30.4 acres. The
development is designed to allow for custom estate homes in a rural atmosphere. These design
guidelines are created to preserve the character of the site, but also allow creativity and quality
of design in architecture. The project is designed to be a small community conforming to the
existing site as well as the surrounding area. The overall theme will continue and enhance the rural
character of the site as well as the adjacent area.
The Standards are not designed to be overly restrictive or limiting, but instead to enable a livable
and diverse environment that is enjoyable and interesting.
Each lot of the Dublin Ranch North Project will individually obtain Site Development Review
approval from the City of Dublin's Planning Commission for the architectural and landscape
design of each lot. The City of Dublin will use these guidelines to determine if the architecture and
landscaping is consistent with the Planned Development.
Page 1 • Land Use and Design Standards
14 � 15 6� °-� L-�o
DUBLIN RANCID NORTH
PERMITTED AND CONDITIONAL LAND USES
PD ESTATE RESIDENTIAL
Animal Keeping including horses and other large animals
Community care facility /small (permitted if required by law, otherwise as conditional use)
Emergency Vehicle Access Roads
Garage/ Yard Sale
Home occupation in accordance with Chapter 8.64 of the Dublin Ordinance
Private recreation facilities such as tennis courts, pools, etc.
Single Family dwelling
Small family home day care per Chapter 8.08 of the Dublin Zoning Ordinance
Open Space
Water Quality and retention facilities
Similar and related uses as determined by the Community Development Director
Family Day Care Home /Large (up to 14 children)
Horse Stable / Riding Instruction
Animal Board & Care
Second dwelling units not in coformance with Section 8.80 of Dublin Zoning Ordinance
Accessory Structures and Uses are permitted as long as they follow the Design Standards as set
forth in this document (Page 19 - Accessory Structure) (Page 4 - Setbacks). Any issue not covered
by these guidelines will follow Section 8.40 of the Dublin Zoning Ordinance.
Second units are permitted as long as they follow the Design Standards set forth in this document.
Any issue not covered by the PD standards will follow Section 8.80 of the Dublin Zoning Ordinance.
Temporary construction trailer
Tract and sales office /model home complex
Page 2 • Permitted and Conditional Uses
DUBLIN RANCH NORTH
PERMITTED AND CONDITIONAL LAND USES
PD OPEN SPACE
Conservation Areas:
Agriculture and grazing
Streams and drainage protection corridors
Wildlife habitat preservation areas
Public Water Tank Facilities and associated facilities
Paving or otherwise covering of the Conservation easement with concrete, asphalt, or any other
impervious paving material.
Grading, filling, dumping, excavating, draining, dredging, mining, drilling, removing or exploring for
or extraction of minerals, loam, sands, gravel or other material on or below the surface, altering the
surface or general topography, including building of roads, or construction of permanent structures
except as provided in the Conservation Area Management Plan or the Conservation Easement or
as approved by the Service, Regional Board, or Department.
Page 3 • Permitted and Conditional Uses
DUBLIN RANCH NORTH
SITE DEVELOPMENT STANDARDS
Estate Residential
Maximum Lot Coverage (')
10%
Maximum Building Height (6)(7)(8)
38'
Maximum Stories (Z)
3
Minimum Front Setbacks (A)(B)(D)(a)(5)
Living Space
20'
Porch or Balcony
15,
Front Facing Garage
25'
Swing -in Garage
20'
Minimum Side Setbacks (A) (B) (c) (o) (a) (5)
10,
Minimum Rear Setbacks (A) (B) (c) (o) (3) (4) (5)
20'
Other Requirements
Accessory Structures Setbacks
(c)(o)
Parking Spaces Required Per Lot
2 Covered and 1 guest
Notes for Site Development Standards
(A) Front Setbacks are measured from the edge of pavement of the Private Driveway.
Rear and Side Setbacks are measured from the property line. Main Residential Buildings to be located within
the primary building envelope.
(B) Encroachments include items such as, but not limited to, roof overhangs, air conditioning condensers, entry
stairs, exterior building stairs, porches, chimneys, bay windows and media centers may encroach up to two
feet or more into the required setback provided there is a minimum of 36 inches of unrestricted access on one
side of the building. Air conditioning units cannot be placed in the front yard. All utilities are to be screened
from public view via walls, enclosures, roof placement, etc.
(C) Setbacks for accessory structures shall be in accordance with the building code in effect at the time of
construction /installation. Noise generating uses such as pool and spa equipment shall be acoustically
screened or located outside the setback area.
(D) Accessory Structures shall be built within the building envelope and follow the same setbacks as the principal
strucutre.
Maximum lot coverage regulations are intended to establish maximum lot area that may be covered with
buildings and structures. Building and structures include all land covered by principal buildings, garages and
carports, permitted accessory structures, second units, covered decks and gazebos, and other enclosed and
covered areas; but not standard roof overhangs, cornices, eaves, uncovered decks, swimming pools, tennis
courts and paved areas such as walkways, driveways, patios, exterior stairs, uncovered parking areas or
roads.
Page 4 • Site Development Standards
Dublin Ranch North • October 2009
q i? o� �qo
2. Subject to Building Code requirements for access.
External retaining walls up to four feet high may be used to create a level usable area. Walls over 30 inches in
height are subject to safety criteria as determined by the Building Official.
4. Setbacks subject to review and approval of Building Official for Building Code and Fire Code issues.
5. On grade stairs and approaches can be located within setbacks.
6. Building Height for a flat pad is measured as the distance from the adjacent ground surface to the
perpendicular point of the roof edge. Building Height for a split pad and sloped lot is measured as the distance
from the finished grade to the perpindicular point of the roof edge.
- - -- - --
FINNED GRADE
FATED GRADE
7. Buildings may not project over the north -south ridgeline running along the eastern portion of the estate
residential parcels.
Accessory Structures shall be a maximum of 15' unless it is a barn, which can be 2 stories, if the upper level is
storage of hay and agricultural materials, or if it is a detached garage with a living unit above. These structures
shall be a maximum of 38'.
TYPICAL SETBACKS /BUILDING ENVELOPE
Page 5 • Site Development Standards
DUBLIN RANCH NORTH
LANDSCAPE AND OPEN SPACE DESIGN STANDARDS
• Continue the natural atmosphere of the existing and surrounding properties. While natural
landscaping is encouraged at the peripheries of the lots, residents are permitted to blend the
natural with more ornamental planting surrounding the home.
• Provide an entry to the project.
• Create a distinct character to the neighborhood.
• The open space areas within the project will provide a smooth transition between the residential
lots and the surrounding properties.
Page 6 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2009
Ritchey & Hunter
Page 7 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2009
ENTRY
SILVERA
RANNC H
LO
SILVERA
RANNT H
MAILBOXES/
GATE ENTRY
GATE
�- PRIVATE DRIVE LANDSCAPING
SECTION A -A
The entry to the Dublin Ranch North neighborhood is located off of Cydonia Court in the Silvera
Ranch Residential Development. The intent of the entry is to provide a private access to the
estate homes. The entry area is defined as the area that is within the Silvera Ranch Property.
The entry may have a gate that will provide access to the private driveway for residents, their
guests and service providers.
ENTRY
• The entry will be a driveway entrance off of Cydonia Ct. at 20' in width. S of
landscaping will be provided on either side of the entry driveway.
GATE
• Agate may span across the 20' Private Driveway.
• A minimum 6' fence will extend from the gate to the property line in the same material
and height as the gate.
• The gate will be 6' in height and a metal material.
• Visitor access will be provided by a Gate Call Box located to the North side of the
driveway.
• The gate will include a knox box for Fire and Police Access.
• Gate design shall allow 20' clear across access drive for vehicle passage.
MAILBOXES
• The mailboxes should match in style and color to the Gate Call Box.
ENTRY MONUMENTATION
• If provided Entry monumentation /signage shall be placed within the F on either side
of the drive.
• Entry monumentation shall blend with the gate and mailboxes to create a distinct
character for the Project.
Page 8 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2009
LANDSCAPING t �q
• 5' of Landscaping will be provided on either side of the Private Driveway entrance.
• The landscape strip will be planted with a hydroseed mix or with low water plantings.
PRIVATE DRIVEWAY
The private driveway will provide access from Cydonia Ct. to the four lots of the Dublin Ranch
North Neighborhood. The landscaping along the Private Driveway will be planted to form natural
groves and will blend with the existing and surrounding properties.
• The Private Driveway will be 20' in width.
• A bioswale will be provided on the eastern side of the driveway to treat storm water
runoff from the site, as grades permit.
• Large Canopy Trees will be planted in informal clusters on the eastern side of the
driveway at the time of the main residence construction.
• Provision of landscaping other than the large canopy trees and the bioswale will be the
responsibility of the homeowner.
• Three parking bays with 5 parking spaces total will be provided along the eastern side
of the private driveway. The parking bays will be built with gravel and overlaid on the
area that the bioswale runs. The bioswale will terminate at an inlet, and flow through a
pipe in these locations before being released on the other side of the parking bay. A 1'
Swale behind the parking bay will be provided for storm water collection, and will flow
into the bioswale.
iI. I MM�TE DRIVE
ETMCK
BKXYWALE
a
SECTION B -B
i1JR I t 0__, 00 e _ ia
7N1 KBYRI E
SECTION CI -C
Page 9 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2009
The bioswale is designed to collect and treat storm water on site. The bioswale is located to the
east side of the private driveway. The private driveway will be sloped to drain into the bioswale, as
well as some drainage from unit roofs and yards where feasible. The storm water will be treated
through the bioswale and then enter the storm drain line through catch basins at each property
line. The Project storm drain line will then connect to the storm drain stub provided in Cydonia Ct.
Landscaping within the bioswale shall be native or other adaptable plants that can take high water
intensity, as well as be drought tolerant in the warmer months.
Private Lot landscaping should complement the natural environment of Dublin Ranch North. Some
portions of the lot may be too steep to alter or have existing vegetation that would be desired to
be maintained and preserved. These areas should be kept in their natural condition if possible.
Garden design elements such as arbors, decks, paving, fences and walls should complement the
environment and architecture.
LANDSCAPE DESIGN:
The landscape design surrounding the home is permitted to be more ornamentally intense. The
landscaping should blend from ornamental to more natural as one moves away from the building
envelope.
• All paving materials for walks, patios, courtyards and decks shall complement the
architectural style of the home.
• Required street trees must be planted, irrigated, retained and maintained in good health
by the homeowner.
• A maximum of 40' along the lot frontage can be a paved surface; this can be used for a
driveway, entry walk, etc. Asphalt driveways and entry walks are not permitted.
• A maximum of 30% of the front yard landscape area may be planted in lawn. Shrubs and
ground covers are encouraged.
• Plantings must follow the City of Dublin Wildfire Management plan in spacing and plant
types as appropriate.
• Ornamental plantings shall have an automatic irrigation system installed and maintained
by the homeowner.
• Drought tolerant and native plants should be considered for planting design.
Page 10 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2009
FENCES AND WALLS: + +10
Fences and walls should enhance the overall character of the Project.
Fences on the lower portions of the lots (west of the Private Drive) are intended to
be transparent and blend into the environment. Acceptable fences include but are not
limited to rail fences, view fences, and wire fences. Fences such as a privacy fence
and walls are acceptable when located between structures on adjacent lots to provide
privacy.
Fences on the upper portions of the lots (east of the Private Drive) are intended to be
transparent and blend into the environment. Acceptable fences include but are not lim-
ited to rail fences, view fences, and wire fences.
PRIVACY FENCE /WALL:
A minimum of 15 feet shall be provided behind the front facade before this fence/
wall occurs. The fence /wall will not exceed 15 feet beyond the rear elevation of
the primary residence.
The fence will be a maximum of 8 feet tall.
• Materials shall include wood, synthetic wood (resin based), and masonry.
I
VIEW FENCE:
• The fence will be a maximum of 6 feet tall.
m
Fence shall be made of metal and black in color.
If provided along the side property line, the fence will be a minimum of 15' behind
the front facade of the home.
Page 11 • Landscape and Open Space Design Standards
RAIL FENCE:
Dublin Ranch North • October 2009
5 + L L
• The fence shall be 4 feet from the finish grade to the top of the rail.
• If the fence is provided for animals such as horses the fence can be increased in
height to 5 feet.
• The Rail Fence can be used in the front yards and along side yards of homes as
a landscape element.
• Pilasters can be used as an additional element with the rail fence.
• Rail fences shall be white or a natural wood color.
AGRICULTURAL FENCE (BARBED WIRE FENCE):
• Agricultural Fences shall be used along the edge of the lots and the open space.
• Steel posts shall be 6 feet in height and placed with 1 feet 6 inches in the
ground and 4 feet 6 inches above grade. The fence shall have four lines of wire,
3 barbed and one smooth.
The barbed wire shall be 12- gauge, with the barbs spaced evenly at 6" apart.
The smooth wire shall be 12 -gauge and shall be the bottom wire.
I"
NORMAL SPACING BMVEE T POSTS
RBED AND SMOOTH
TIRE TO BE 12 - IT
GAUGE
M
Page 12 • Landscape and Open Space Design Standards
RETAINING WALLS.
Dublin Ranch North • October 2009
L-W.? t +Io
• Retaining Walls can be used to help with grading and retaining the natural
landform.
• Retaining wall height shall be minimized with 30 inches being the preferred
height.
• Retaining walls shall have a maximum height of four feet.
• If retaining more than six feet the retaining walls shall be placed five feet apart
and shall not exceed four feet in height.
• All retaining walls shall be made with high quality design and materials.
• Retaining walls shall be designed to match the architectural style of the
residence with similar colors and materials or blend into the environment if
located away from the building.
• Finishes on walls must continue down to within 4" of finish grade or 2" of
adjacent paved surface.
UNDEVELOPED LAND:
Land within the residential parcels that is not developed or landscaped and has been graded
shall be hydro seeded to control erosion and provide cover.
FIRE MANAGEMENT:
Because the residential lots will be adjacent to permanent Open Space, fire buffers and
structures adjacent to the open spaces shall be designed in accordance with the City of Dublin
Approximately 126 acres of the Dublin Ranch North Property is designated as Open Space and
will be placed into a permanent Conservation Easement. The Open Space will surround the
residential lots to the South and East and will provide a connection with the natural environment.
This Open Space will be retained in its natural state, providing a habitat for the wildlife and
plant communities that are present on the site now. This area also provides a conservation
area designed to enhance the natural environment for various wildlife species. Mitigation
measures undertaken within the Northern Drainage Conservation Area consist of construction
of seasonal ponds, several small riparian revegetation sites, construction of in- stream pools and
natural revetments for stabilization, eagle nesting platforms, and enhancement of wetland and
upland conditions by implementation of a grazing management plan. Mitigation in this area was
completed in January 2004, and H. T. Harvey & Associates has been monitoring the success of
restoration efforts on an annual basis.
Grading for development will not occur within the Open Space parcel.
If planting occurs within the Open Space areas it will be native plants as practical and as
accepted by the various environmental agencies.
No trails or other development will occur on the Open Space parcel.
Page 13 • Landscape and Open Space Design Standards
Dtuhlin Rannh AinrFh . ne -fnhnr 9nna
Lighting for the Dublin Ranch North property will be through individual house lighting.
Utility boxes shall be screened with iandscaping as allowed by the utility companies.
Underground facilities should be used where practical.
Maintenance of the Dublin Ranch North Property will be the responsibility of four separate entities,
DSRSD, the Open Space Conservation entity, a joint maintenance agreement amongst the
homeowners and the individual homeowners. See Ownership and Maintenance Exhibit on the next
sheet.
• DSRSD will own and maintain their parcel.
• The Open Space maintenance will be the sole responsibility of the Open Space
Conservation Easement entity.
• A Joint Maintenance Agreement shall be formed amongst the project homeowners to
govern the shared costs of the bioswale, the driveway, gate and mailboxes.
• The Individual Homeowner is responsible for maintaining all landscaping and irrigation
on their property including all private driveway trees, fences, walls, slopes and lot
landscaping.
Page 14 • Landscape and Open Space Design Standards
Dublin Ranch North • October 2nn9
Owned and maintained by Land Trust
or similar entity.
®Homeowner owned with Joint Access and
Maintenance Agreement between 4
homeowners.
Owned and maintained by Homeowner
Owned and maintained by DSRSD
Page 15 • Landscape and Open Space Design Standards
64
INS
SqW
IS
MIN
n,x
Owned and maintained by Land Trust
or similar entity.
®Homeowner owned with Joint Access and
Maintenance Agreement between 4
homeowners.
Owned and maintained by Homeowner
Owned and maintained by DSRSD
Page 15 • Landscape and Open Space Design Standards
DUBLIN RANCH NORTH
ARCHITECTURAL DESIGN STANDARDS
• Provide high quality architecture that is built utilizing authentic architecture styles and elements
• Allow the flexibility of architectural design and style for each homeowner.
• Require that the appropriate scale and proportion of architectural elements and the selection of
details are used to provide authenticity of style.
• Roof forms, materials and building massing shall be used to establish a recognizable style.
• Detail elements should be provided to enhance the character of the style.
• Materials shall be of high quality.
Page 16 • Architectural Design Standards
Dublin Ranch North • October 2009
H30 ° L l -
The Dublin Ranch North Project is designed to work with the existing topography and provide a
hillside estate home community.
When placing the home within the primary building envelope care should be given to ensure that
the home fits with the surrounding environment. The home should be oriented to views, solar
orientation and relate to the open space with courts, balconies and /or decks. Thought should also
be given to the surrounding homes of the development to ensure that privacy is maintained.
A conceptual grading plan has been prepared for the Dublin Ranch North property. Flat building
pads are provided for each of the four lots in this grading plan. The builder or owner may retain
the flat pads or re- design the grading plan to incorporate split pad homes. If additional structures
are to be built such as barns, tennis courts and pools they are encouraged to be placed within the
flat building pad or terraced on the slopes, but are permitted to occur elsewhere as well. However
these structures shall not extend above the ridgeline. Additionally the following criteria shall apply:
• Grading within the building envelope shall not exceed 2:1.
• Retaining walls can be used to help with grading, terracing and retaining the natural
landform. See the Landscape Guidelines for specific retaining wall guidelines.
Housing materials, designs and placement should be carefully considered and shall follow the City
of Dublin's Wildfire Management Plan. Materials should be non - combustible when possible, and
size treatments and coatings as well as sizes of wood elements should be considered.
BUILDING MASS AND FORM:
The general form of the building should follow the architectural style of the home. Visual interest
should be provided by articulations of the wall planes to provide interest and scale.
• One and two story elements and forms should be combined to break up massing.
• Box forms should be avoided and the second story shall not completely overlay the first
floor.
• When authentic to the architectural style variable facade setbacks should be provided.
• Facades of homes that are visible from Fallon Road or Tasssajara Road shall incorporate
a horizontal or vertical massing break.
• If a stepped pad is used, varying heights of the stories of the home shall be used.
Page 17 • Architectural Design Standards
Dublin Ranch North • October 2009
FACADE DETAIL ELEMENTS: `1 � of gilt`
All facade elements shall be appropriate to the architectural style of the home. To enhance the
building facade and increase interest elements such as covered porches, entry alcoves, windows,
entry and other details should be used.
• The entry shall be articulated as the focal element of the front facade.
• Alcoves or project overhangs as well as different articulations can be used to cast
shadows.
• If a stepped pad is used the downslope wall shall be articulated and include facade
elements that the rest of the home incorporates. This can include windows, balconies,
wall articulations and other elements.
• Enhanced trim and details shall be used to emphasize doors and windows.
• Window treatments such as shutters, awnings, louvered vents, horizontal banding,
and false shuttered windows should be used to enhance the exterior of the building if
appropriate to the building style.
• Facade elements shall be provided on all sides of the home.
ROOF LINES /ROOF FORMS:
Roof forms shall be consistent with the architectural style of the home. Hip, gable, shed roof forms,
or a combination thereof, may be utilized. Dormers and similar elements are encouraged to be
used to provide interest.
• Dual pitch roof forms such as Gambrel or Mansard shall not be used.
• If asphalt composite shingles are used they shall be 50 year architectural grade.
• Principal roof forms shall have a minimum roof pitch of 3 1/2:12.
• Extended overhangs are allowed if designed properly and are authentic to the
architectural style.
• If covered porches are provided, roof pitch can vary. Material shall be consistent with the
roof material, or house materials.
• A variety and balance of hip and gable forms shall be provided to avoid repetitious
elements within the community.
GARAGE DESIGN:
The landscaping, entries and overall residential structure shall be the primary emphasis of the
street view. Garages shall be concealed or be de- emphasized. This can be accomplished by
utilizing swing in garages, adding windows and other architectural treatments to garage doors,
detached and setback garages, recessing garage doors and adding porte cocheres or trellis'
forward of the garage door. Deeper front yard setbacks than the required 20' are preferred. No
more than two car garage doors shall be on the same plane. An additional door if provided shall be
offset by a minimum of two feet. A maximum of three car doors may be front facing onto the private
driveway. A maximum of four garage doors are permitted if in swing in garages.
Garage Door materials should reflect the architectural style of the home. Roll up doors shall be
used. Windows within the garage door are encouraged. Colors should complement the color
Page 18 • Architectural Design Standards
Dublin Ranch North • October 2009
UA3a +qL-h
palette. Garage doors that face the front shall be recessed a minimum of 6" to decrease the
visibility of the door if appropriate to style.
MATERIALS /COLORS:
The materials and colors for the Dublin Ranch North property are encouraged to blend with the
natural setting, and to complement the surrounding environment rather than stand out from it. The
materials shall be of high quality and compatibility with the other homes within the development.
Materials and colors shall be applied to all four sides of the home, and match that of the front
elevation of the home. Material changes shall occur at an inside corner or other logical transition
point such as chimneys, projections or recesses.
ENCOURAGED MATERIALS:
Stone in natural hues, naturalistic finishes and patterns are preferred
All materials shall comply with the City of Dublin's Wildfire Management Plan as
appropriate.
Colors should be natural earth tones and are encouraged to mimic and blend with the
surrounding colors of the site.
PROHIBITED:
Bright metals that do not patina or are not matte finished.
Colors that are bright or occur in non - traditional tones such as pink, bright yellows,
purple, or blue.
WINDOWS /DOORS /OTHER DETAILED ELEMENTS:
Windows, doors and other elements shall follow the architectural style of the home as well as be
made with high quality design and materials. Four sided architecture shall be used, and windows,
doors and other elements shall be used on all facades of the home. These elements should be of at
the appropriate scale for the home.
• Windows shall have a minimum width of four inches of foam trim, a minimum four -by
nominal lumber dimension of wood trim, or be recessed by a minimum of four inches.
• The entire door assembly should be treated as a single design element including casing,
trim, moulding and glass sidelights if provided.
• Door colors shall complement the rest of the house either through contrast of the trim
color or matching; it should be a different color than the wall color.
• Skylights and other roof windows are allowed as long as they are designed to be an
integral part of the roof with clear or bronzed glazing and framework that matches the
roof or trim color of the house.
LIGHTING:
The intent is to make each home site a subtle environment from the street and neighbors rather
than the focal point. Lighting is encouraged to enhance the architectural and landscape features
and provide safety.
• No on -site pole lights shall be allowed on lots.
Page 19 • Architectural Design Standards
LAM o� H'q
Dublin Ranch North • October 2009
Flood lights are not allowed unless they are shielded from the neighbor and private drive
and is provided with a motion detecting sensor.
The number of exterior lighting fixtures shall be limited to lighting landscaping and for
safety.
All lighting shall be installed to not intrude on the neighboring property or project into the
night sky.
Secondary units shall match in architectural style, color and design of the principle residence.
Additional standards are below:
• Secondary units shall be within the lot setbacks.
• The Second Unit shall not exceed more than 35% of the total area of the primary residence.
• One second dwelling will be allowed per lot.
• One additional off - street parking space will be required. This space can be tandem or
uncovered, in a driveway or elsewhere.
• The Secondary Unit will be included in the Lot Coverage referred to in the Development
Standards of this document.
• Minimum and maximum square footages will be in accordance with Section 8.80 of the Dublin
Municipal Code.
• Secondary units not in conformance with Section 8.80 of the Dublin Municipal Code shall be
subject to a Conditional Use Permit.
Any accessory structures shall be located per City of Dublin Zoning Ordinance Section 8.40. All
such structures shall complement in style of the primary residence or shall be screened from public
view with landscaping or other techniques. In addition the following guidelines apply:
• Accessory Structures shall be a maximum of a 1000 SF ground floor footprint unless approved
by a Site Development Review by the Zoning Administrator.
• 15 feet maximum height unless the structure is a barn which can be 2 stories if the upper level
is used for storage of hay or agricultural equipment, or a garage with a second unit on top in
which case the maximum height will be 38 feet.
• Agricultural Accessory Structures including but not limited to, stable barns, pens, corrals,
greenhouses or coops are permitted with a Site Development Review.
• Accessory Structures, with the exception of driveway gates, will be placed within the setbacks
provided in the Site Development Standards.
All on -site utilities shall be screened either via walls, roof placement, enclosures, etc. as practical.
Mechanical equipment such as air conditioners, heaters, etc. shall not be placed on the roof or in
the front yard of the home.
Page 20 • Architectural Design Standards
Dublin Ranch North Annexation Area • November 2009
W3� t 040
Dublin Ranch North
Written Statement for a Vesting Tentative Tract Map
The following findings relate directly to the lettered questions listed under the
Written Statement section of the application submittal requirements for a
Tentative Subdivision Map.
A. How will the proposed subdivision benefit the City of Dublin?
This project will allow the construction of four units and the transfer of 64
other units to less environmentally constrained sites. These dwelling units
are already anticipated for by the City of Dublin, and will increase the
assessed value of the City. The ability to maintain this overall unit count will
maintain a City -wide balance between jobs and housing. Future residents
will strengthen the market for nearby commercial uses projected to occur in
accordance with the Eastern Dublin Specific Plan.
B. Describe how the proposed subdivision will be compatible with surrounding
land uses, enhance the development of the -general area, and create an
attractive and safe environment.
The project will be harmonious and compatible with existing and future
development and open space plans. The site plan for the Dublin Ranch
North property adheres to the General Plan's and the Eastern Dublin
Specific Plan's goals and policies. This will ensure that the project will be
compatible, both in terms of land use and physical design, with adjacent
development.
The Project modifies the General Plan and Eastern Dublin Specific Plan by
refining the land plan to reflect the introduction of the mitigation lands,
respect utility service requirements, and create a project unlike any other in
the City. Approximately 80% of the property will be undeveloped and will
remain as natural open space, and additional lands within the development
parcel will remain primarily undeveloped due to building restrictions.
The four units are intended to provide a county estate character of homes
on lots ranging from approximately 4.5 - 13 acres each, with designated
building envelopes to limit the impact of development on the hillside.
Development will be designed to take full advantage of the natural features
of the sites and to limit impacts on environmental resources. Residential
dwelling units are a compatible use adjacent to a managed environmental
area and development areas will be located away from the Northern
Drainage and out of the viewshed of the golden eagle.
Vesting Tentative Tract Map Written Statement
Dublin Ranch North • March 2008
w35 + X10
The majority of the site that is designated as open space (126.8) will be a
permanently managed environmental area. These lands will be placed in a
conservation easement and will be managed consistent with a Mitigation
and Monitoring Plan approved by various environmental agencies.
C. Will the proposed subdivision be consistent with all elements of the General
Plan and any applicable Specific Plans of the City of Dublin?
This project is consistent with the Planned Development Rezone and the
General Plan/ Eastern Dublin Specific Plan as amended, along with all
applicable City of Dublin policies and guidelines. The proposed subdivision
plan is consistent with the type, location and size of land use designations
found in the approved Planned Development Rezones and the General
Plan/ Eastern Dublin Specific Plan Amendment.
D. Is the site physically suitable for the type and intensity of development being
proposed?
The site is physically suitable for the type and intensity of zoning districts
being proposed. The vast majority of the project area will be undeveloped
to recognize the natural features of the site and to preserve and maintain
them. A small portion of the site, approximately 20 %, will be developed as
estate residential. This development is isolated to the northwestern west
facing hill on the site, and will make use of adjacent logical vehicular
access points from Cydonia Court. This development pattern is similar to
that designated in the General Plan and Eastern Dublin Specific Plan
(EDSP), but has been refined to respect the environment and
infrastructure requirements, while reducing the density of development.
A tributary to Tassajara Creek, referred to as the "Northern Drainage"
runs through the central portion of the site. Avoiding this corridor and the
lands designated as conservation lands will insure that the project will not
adversely affect the environment and will provide prolonged stability for
wildlife and their habitats.
In the follow up survey by Berlogar Geotechnical on October 1, 2009,
Berlogar determined that there are no landslides within the development
area. Berlogar Geotechnical has determined that there are no faults
located on the site per available record surveys. No portions of the site
are within the 100 year flood area per FEMA's Firm Map No. 06001
C0326G 115C, dated August 3, 2009. No hazardous materials exist on
the property.
E. Is the design of the subdivision or proposed improvements likelv to cause
substantial environmental damage or substantially injure fish or wildlife or
their habitat?
Page 2 • Vesting Tentative Tract Map Written Statement
Dublin Ranch North • March, 2008
q 3 0 Q
The design of this project is not expected to substantially impact the
environment or injure wildlife or their habitat. This project proposes the
concentration of residential development in areas of few environmental
constraints. Any environmental impacts caused by this project will be
mitigated either on -site or off -site.
F. Will the design of the subdivision or type of improvements adversely affect
the health or safety of persons residing or working in the vicinity, or be
detrimental to the public health, safety and welfare?
The proposed project is consistent with the Eastern Dublin Specific Plan's
ordinances for public health, safety, and welfare. The proposed
development project will not adversely affect the health or safety of persons
residing or working in the vicinity, nor will it be detrimental to public health,
safety or welfare. The project will produce no noxious odors, hazardous
materials, or excessive noises.
In the follow up survey by Berlogar Geotechnical on October 1, 2009,
Berlogar determined that there are no landslides within the development
area. Development in hillside areas is carefully regulated under the Specific
Plan to insure that hazardous hillside conditions are avoided or remedied.
In addition, none of the residential lots in the project will have direct
driveway access onto a major arterial.
The proposed development project is not anticipated to adversely affect the
health or safety of persons residing or working in the vicinity, nor is
detrimental to public health, safety or welfare. Development in hillside
areas is carefully regulated under the Specific Plan to insure that
hazardous hillside conditions are avoided or remedied. Additionally, no
hazardous materials have been found to exist on the property.
G. Will the design of the subdivision or type of improvements conflict with
easements, acquired by the public at large, for access through or use, of
property within the proposed subdivision.
The design of this project will not conflict with easements acquired by the
public at large for access through or use of property within the proposed
Project Area.
H. Is the site where the subdivision is proposed located on a hazardous waste
and substances site (pursuant to Government Code Section 2.65962.5).
Eckland Consultants conducted a Phase 1 environmental site assessment
of the project area to investigate the potential for on -site hazardous wastes
or substances. Eckland's assessment indicates that the property is not
known to contain hazardous wastes or substances. The study concluded
that the property has a low likelihood that any hazardous or toxic
Page 3 • Vesting Tentative Tract Map Written Statement
Dublin Ranch North • March, 2008
q3I + qqD
substances exist on the site. Eckland recommends no additional
investigation at this time.
Page 4 • Vesting Tentative Tract Map Written Statement
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