_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-7 Table 2.1
SUMMARY OF POTENTIALLY SIGNIFICANT IMPACTS AND RECOMMENDED MITIGATION MEASURES
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
AESTHETICS
Impact 4-1: Project Effects on Scenic
Vistas
LS N/A N/A N/A
Impact 4-2: Project Impacts on Existing
Visual Character and Quality
LS N/A N/A N/A
Impact 4-3: Project Light and Glare Effects LS N/A N/A N/A
AIR QUALITY
Impact 5-1: Conflict with 2017 Clean Air
Plan
LS N/A N/A N/A
Impact 5-2: Result in a Cumulatively
Considerable Net Increase in Criteria
Pollutants for which the Region is Non-
Attainment. Implementation of the Patrick
Henry Drive Specific Plan could result in
growth in the Plan Area that exceeds the level
of growth accounted for in the City’s General
Plan and, therefore, could generate a
cumulatively considerable net increase in
criteria air pollutants for which the region is in
non-attainment. This represents a potentially
significant impact.
S Mitigation Measure 5-2A: Implement
BAAQMD Basic Construction Mitigation
Measures. The City shall require new
development projects occurring under
implementation of the Patrick Henry Drive
Specific Plan to implement the BAAQMD’s
Basic Control Mitigation Measures to address
fugitive dust emissions that would occur during
earthmoving activities associated with project
construction. These measures include:
1. All exposed surfaces (e.g., parking
areas, staging areas, soil piles, graded
areas, and unpaved access roads)
shall be watered two times per day.
City; Individual
project
applicants
SU
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
2. All haul trucks transporting soil, sand,
or other loose material off-site shall be
covered.
3. All visible mud or dirt track-out onto
adjacent public roads shall be removed
using wet power vacuum street
sweepers at least once per day. The
use of dry power sweeping is
prohibited.
4. All vehicle speeds on unpaved roads
shall be limited to 15 mph.
5. All roadways, driveways, and
sidewalks to be paved shall be
completed as soon as possible.
Building pads shall be laid as soon as
possible after grading unless seeding
or soil binders are used.
6. I dling times shall be minimized either
by shutting equipment off when not in
use or reducing the maximum idling
time to 5 minutes (as required by the
California airborne toxics control
measure Title 13, Section 2485 of
California Code of Regulations [CCR]).
Clear signage shall be provided for
construction workers at all access
points.
7. All construction equipment shall be
maintained and properly tuned in
accordance with manufacturer’s
specifications. All equipment shall be
checked by a certified mechanic and
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
determined to be running in proper
condition prior to operation.
8. Post a publicly visible sign with the
telephone number and person to
contact at the City regarding dust
complaints. This person shall respond
and take corrective action within 48
hours. The Air District’s phone number
shall also be visible to ensure
compliance with applicable regulations.
Mitigation Measure 5-2B: Require a Project-
level Construction Assessment for New
Development Proposed Under
Implementation of the Patrick Henry Drive
Specific Plan. The City shall require applicants
to submit a quantitative project-level
construction criteria air pollutant and toxic air
contaminant emissions analysis for future
development proposed under implementation
of the Patrick Henry Drive Specific Plan. The
estimated construction criteria air pollutant and
toxic air contaminant emissions shall be
compared against the thresholds of
significance maintained by the Bay Area Air
Quality Management District (BAAQMD) and, if
emissions are shown to be above BAAQMD
thresholds, the City shall require the
implementation of mitigation to reduce
emissions below BAAQMD thresholds or to the
maximum extent feasible. Mitigation measures
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-10
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
to reduce emissions could include, but are not
limited to:
Selection of specific construction
equipment (e.g., specialized pieces of
equipment with smaller engines or
equipment that will be more efficient and
reduce engine runtime);
Requiring equipment to use alternative fuel
sources (e.g., electric-powered and
liquefied or compressed natural gas), meet
cleaner emission standards (e.g., U.S.
EPA Tier IV Final emissions standards for
equipment greater than 50-horsepower),
and/or utilizing added exhaust devices
(e.g., Level 3 Diesel Particular Filter);
Minimizing the idling time of diesel-
powered construction equipment to two
minutes;
Requiring that all construction equipment,
diesel trucks, and generators be equipped
with Best Available Control Technology for
emission reductions of NOx and PM;
Requiring all contractors use equipment
that meets CARB’s most recent
certification standard for off-road heavy-
duty diesel engines; and
Application of Low-VOC paints to interior
and/or exterior surfaces (e.g., paints that
meet SCAQMD Rule 1113 “Low-VOC” or
“Super-Compliant” requirements).
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-11
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
Mitigation Measure 5-2C: Use Low- and
Super Compliant VOC Architectural
Coatings. The City shall require the use of
Low- and Super-Compliant VOC Architectural
Coatings in maintaining buildings in the Patrick
Henry Drive Specific Plan Area through
Covenants Conditions and Restrictions
(CC&Rs) and Ground Lease. Developed
parcels shall require within their CC&Rs and/or
ground leases requirements for all future
interior spaces to be repainted with
architectural coatings that meet the “Low-VOC”
or “Super-Compliant” requirements. “Low-VOC”
refers to paints that meet the more stringent
regulatory limits of South Coast Air Quality
Management District AQMD Rule 1113.
“Super-Compliant” refers to paints that have
been reformulated to levels well below the
“Low-VOC” limits.
Mitigation Measure 5-2D: Implement TDM
Program. Proposed residential, retail,
commercial, and office land uses within the
Patrick Henry Drive Specific Plan Area shall
prepare and implement Transportation
Demand Management (TDM) programs
consistent with the requirements outlined
Section 7.3 of the Patrick Henry Drive Specific
Plan. Projects shall achieve a minimum
reduction in vehicle miles traveled (VMT) of 20
percent compared to baseline conditions (i.e.,
without internal or external reductions
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-12
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
accounted for, such as geographic location,
land use interconnectivity, etc.), with at least 10
percent of the reduction coming through
project-specific TDM measures (e.g., transit
subsidies, telecommuting options, etc.).
Even with implementation of Mitigation
Measures 5-2A through 5-2D, this impact
would remain significant and unavoidable.
Impact 5-3: Generate Toxic Air
Contaminant Emissions that Expose
Sensitive Receptors to Substantial Pollutant
Concentrations During Construction.
Implementation of the Patrick Henry Drive
Specific Plan would result in construction
activities over the next approximately 20 years
that generate toxic air contaminant emissions
and could expose sensitive receptors to
substantial pollutant concentrations. These
activities represent a potentially significant
impact.
S Mitigation Measure 5-3A: Implement
Mitigation Measure 5-2B.
Even with implementation of Mitigation
Measure 5-3, this impact would remain
significant and unavoidable.
City; Individual
project
applicants
SU
Impact 5-4: Expose Sensitive Receptors to
Substantial Operational Pollutant
Concentrations
LS N/A N/A N/A
Impact 5-5: Odors LS N/A N/A N/A
BIOLOGICAL RESOURCES
Impact 6-1: Impacts on Riparian Habitat,
Sensitive Natural Communities, Wetlands,
LS N/A N/A N/A
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-13
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
Fish and Wildlife Corridors, and Fish and
Wildlife Nursery Sites
Impact 6-2: Potential Impacts on
Threatened and Endangered Habitat.
Development facilitated by the Patrick Henry
Specific Plan could degrade the habitat of rare,
threatened, or endangered species1 (also
referred to as “special-status”) potentially
present on a project site, and conflict with
Policy 5.10.1‐P1 of the Santa Clara General
Plan (see “Regulatory Setting” above). The
absence of City evaluation of the need for
further biological resource surveys would be in
violation of City policy and is therefore
considered a potentially significant impact.
S Mitigation 6-2. In order to keep current the
biological resource evaluation prepared for the
Patrick Henry Drive Specific Plan EIR, upon
receiving applications for site-specific projects
within the Specific Plan Area, the City shall
evaluate the need for a specific biological
resource survey of the project site and adjacent
area that may be indirectly impacted by project
work. If no biological resources are determined
to be at risk as determined by a qualified
biologist, no further survey shall be required.
However, if the City determines that biological
resources within the project area require further
analysis, the project proponent shall be
required to conduct a biological resource
survey of the habitat and special-status species
that may be impacted by project activities,
either directly or indirectly. A report shall be
provided to the City detailing survey methods,
results, and avoidance and minimization
measures required to protect any special-
status species with potential to be impacted, in
accordance with the regulatory protocols of the
responsible jurisdictional agencies for the
resource in question, including, but not limited
to: USFWS, CDFW, and USACE. If no further
surveys/investigation is requested by a
City; Individual
project
applicants
LS
1Special-status species with potential to occur within the Specific Plan Area include: Congdon’s tarplant, arcuate bush mallow, burrowing owl, white-tailed kite, pallid bat, and Townsend’s big-eared bat; as well as nesting birds and roosting bats protected by the MBTA and CFGC.
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-14
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
permitting or other regulatory agency upon
receipt of biological survey report, work may
proceed as planned. Implementation of this
measure would reduce the impact to a less-
than-significant level.
Impact 6-3: Potential Impacts on Special-
Status Plants. There is a low potential for
Congdon’s tarplant (Centromadia parryi ssp.
congdonii; California Rare Plant Rank 1B.2)
and arcuate bush mallow (Malacothamnus
arcuatus; California Rare Plant Rank 1B.2) to
occur within the Specific Plan Area, especially
if the area is left undisturbed for a long period
of time (i.e., a year or longer). Without a
proactive mitigation procedure in place, Plan
implementation could inadvertently result in the
removal of special-status plants. This is
considered a potentially significant impact.
S Mitigation 6-3. Before any project work within
the Specific Plan Area, a qualified botanist
shall conduct site-specific, focused surveys
according to CDFW guidelines to determine
presence or absence of special-status plant
species on the individual project site and any
adjacent potential area of disturbance. A
comprehensive, site-wide survey should be
conducted within May to September before
project work begins, to encompass the
Congdon’s tarplant and arcuate bush mallow’s
blooming periods. Following the completion of
the surveys, a survey results report shall be
prepared and provided to the City. This report
should include, but should not be limited to, the
following: (1) a description of the survey
methodology; (2) a discussion of the survey
results; and (3) a map showing the survey area
and the location of any special-status plants
encountered. If no rare plants are found, then
no further mitigation would be required.
If rare plants are found during the survey, the
number of individuals present shall be
documented and the limits of population shall
be marked with flagging. The flagged border of
the population shall be avoided by construction
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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July 27, 2021 Page 2-15
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
personnel for the duration of the project. If the
species cannot be avoided or may be indirectly
impacted, the applicant shall notify CDFW to
discuss avoidance, minimization, and
mitigation measures as appropriate for each
species population, including measures to be
taken and protocols to be followed if special-
status plants are inadvertently disturbed during
construction activities.
CDFW may require the preparation and
implementation of a mitigation plan that details
avoidance, preservation, and/or compensation
for the loss of individual special-status plant
species. Mitigation may include the purchase
of mitigation bank credits, preserving and
enhancing existing on-site populations,
creation of off-site populations through seed
collection and/or transplantation and monitoring
these populations to ensure their successful
establishment, and/or preserving occupied
habitat off-site in perpetuity. Specific amounts
and methods of mitigation and/or credits shall
be determined in formal consultation with
CDFW and USFWS.
Implementation of this measure would reduce
the impact to a less-than-significant level.
Impact 6-4: Potential Impacts on Nesting
Birds or Roosting Bats. The Federal
Migratory Bird Treaty Act and California Fish
and Game Code sections 3503, 3503.5, 3513,
S Mitigation 6-4. The demolition of any
buildings, disturbance of gravel substrate,
and/or removal of trees, shrubs, or weedy
vegetation shall be avoided during the
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-16
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
3800, and 4150 protect migratory and nesting
birds, as well as roosting bats. Although the
Patrick Henry Drive Specific Plan does not
specify which trees or buildings might be
removed under individual projects facilitated by
the Plan, trees (potential nesting and roosting
habitat) or buildings could be disturbed or
removed by Plan implementation. The
possibility of removing trees and/or buildings
that contain nests or roosting bats is identified
here as a potentially significant impact. Any
direct removal of trees or indirect disturbance
by construction or operational activities during
the nesting season that causes nest
abandonment and/or loss of reproductive effort
(killing or abandonment of eggs or young) is
considered a "take."
There is a low potential for burrowing owl
(Athene cunicularia; California species of
special concern), white-tailed kite (Elanus
leucurus; California Fully-Protected Species),
pallid bat (Antrozous pallidus), and
Townsend’s big-eared bat (Corynorhinus
townsendii; California species of special
concern) to utilize the landscaped habitat
within the Specific Plan Area for roosting
and/or nesting, especially if the area is left
undisturbed for a long period of time. In
addition, many common bird species without a
special status, though protected by the MBTA,
MBPA, and California Fish and Game Code
February 1 through August 31 bird nesting
period to the extent possible. If no demolition,
gravel disturbance, vegetation, or tree removal
is proposed during the nesting period, no
further action is required. If it is not feasible to
avoid the nesting period, the project applicant
shall retain a qualified wildlife biologist to
conduct a survey for nesting birds at most 14
days prior to the start of removal of trees,
shrubs, grassland vegetation, or buildings,
including prior to grading or other construction
activity. If demolition of buildings, disturbance
of gravel substrate, or vegetation removal
efforts do not begin within the 14 days following
the nesting bird survey, another survey shall be
required. The area surveyed shall include all
construction sites, access roads, and staging
areas, as well as reasonably accessible areas
within 150 feet outside the boundaries of the
areas to be cleared or as otherwise determined
by the biologist and dependent on species’ life
history requirements.
If an active nest is discovered in the areas to
be directly physically disturbed, or in other
habitats within the vicinity of construction
boundaries and may be disturbed by
construction activities (as determined by the
qualified biologist), clearing and construction
shall be postponed until the qualified biologist
has determined that the young have fledged
(left the nest), the nest fails, or the nest is
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-17
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
(CFGC), may utilize buildings, gravel
substrates, and the landscaped vegetation
within the Plan Area for nesting, foraging, and
roosting. Common bat species protected by
the CFGC may also rarely utilize vegetation
within the Specific Plan Area for individual
roosting. Without a proactive mitigation
procedure in place, Plan implementation could
inadvertently result in the removal of existing
trees containing nests or eggs of migratory
birds, raptors, or bird species during the
nesting season, or roosting bats, which would
be considered unlawful take under the MBTA
and the CFGC (see Regulatory Setting above).
This is considered a potentially significant
impact.
otherwise determined to be inactive by the
biologist (i.e. predation).
To avoid impacts to roosting bats that may
rarely utilize the Specific Plan Area vegetation
and/or vacant buildings for day roosting, the
project applicant shall retain a qualified wildlife
biologist to conduct a survey for roosting bats
at most 14 days prior to the start of demolition
of any vacant buildings left with entry and
egress points accessible to bats or removal of
suitable bat roosting vegetation. If roosting bats
are detected, the biologist shall enact a
minimum of a 150-foot no-work buffer and
confer with CDFW to determine potential roost
protection or roost eviction practices. After
conferring with CDFW, the protective buffer
may be adjusted based on specific roost
needs. Once bats have been suitably protected
by a buffer and/or safely evicted from roosting
sites (as approved by CDFW), construction
may resume outside the buffered area.
A nesting bird and roosting bat survey report
prepared with the methods and results of the
pre-project survey will be submitted to the City
for review and approval prior to
commencement of construction activities. Any
additional construction monitoring, as
determined through any necessary
coordination/discretionary approvals with the
resource agencies, will be documented per
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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City of Santa Clara 2. Summary
July 27, 2021 Page 2-18
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
requirements set forth in an approved
mitigation monitoring and reporting program.
Implementation of this measure would reduce
the impact to a less-than-significant level.
Impact 6-5: Impacts on Protected Trees,
Plants, and Shrubs
LS N/A N/A N/A
CULTURAL AND HISTORIC RESOURCES
Impact 7-1: Destruction/Degradation of
Historic Resources. There may be one or
more properties or features within the Specific
Plan Area, now or in the future, that meets the
CEQA definition of a historic resource,
including properties or features eligible for
listing in a local, State, or Federal register of
historic resources. Future development
projects that are otherwise consistent with the
proposed Patrick Henry Drive Specific Plan
may cause substantial adverse changes in the
significance of one or more such historic
resources. Substantial adverse changes that
may occur include physical demolition,
destruction, relocation, or alteration of one or
more historic resources or its immediate
surroundings such that the resource is
"materially impaired." The significance of a
historic resource would be considered
S Mitigation 7-1. For any individual project
within the Patrick Henry Drive Specific Plan
Area that the City determines may involve a
property that contains a potentially significant
historic resource, the resource shall be
assessed by a professional who meets the
Secretary of the Interior's Professional
Qualifications Standards to determine whether
the property is a significant historic resource
and whether or not the project may have a
potentially significant adverse effect on the
historic resource. If, based on the
recommendation of the qualified professional,
the City determines that the project may have a
potentially significant effect, the City shall
require the applicant to implement the following
mitigation measures:
(a) Adhere to at least one of the following
Secretary of the Interior’s Standards:1
City; Individual
project
applicants
SU
1Under the CEQA Guidelines (section 15064.5[b][3]), a project's adverse impact on a historic resource generally can be mitigated to a less- than-significant level by following either of these standards.
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
potentially "materially impaired" when and if an
individual future development project proposes
to demolish or materially alter the physical
characteristics that justify the determination of
its significance (CEQA Guidelines section
15064.5[b]). Such adverse changes in the
significance of a CEQA-defined historic
resource would be a significant impact.
S ecretary of Interior's Standards for the
Treatment of Historic Properties with
Guidelines for Preserving,
Rehabilitating, Restoring, and
Reconstructing Historic Buildings; or
Secretary of Interior's Standards for
Rehabilitation and Guidelines for
Rehabilitating Historic Buildings.
The qualified professional shall make a
recommendation to the City as to whether the
project fully adheres to the Secretary of the
Interior’s Standards, and any specific
modifications necessary to do so. The final
determination as to a project's adherence to
the Standards shall be made by the City body
with final decision-making authority over the
project. Such a determination of individual
project adherence to the Secretary of the
Interior’s Standards will constitute mitigation of
the project historic resource impacts to a less-
than-significant level (CEQA Guidelines
section 15064.5).
(b) If measure (a) is not feasible, the historic
resource shall be moved to a new location
compatible with the original character and use
of the historic resource, and its historic features
and compatibility in orientation, setting, and
general environment shall be retained, such
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
that a substantial adverse change in the
significance of the historic resource is
avoided.1 Implementation of measure (b)
would reduce the impact to a less-than-
significant level.
If neither measure (a) nor measure (b) is
feasible, then the City shall, as applicable and
to the extent feasible, implement the following
measures in the following order:
(c) Document the historic resource before any
changes that would cause a loss of integrity
and loss of continued eligibility. The
documentation shall adhere to the Secretary of
the Interior's Standards for Architectural and
Engineering Documentation. The level of
documentation shall be proportionate with the
level of significance of the resource. The
documentation shall be made available for
inclusion in the Historic American Building
Survey (HABS) or the Historic American
Engineering Record (HAER) Collections in the
1One example of a substantial adverse change would be the loss of eligibility for listing on the California Register. The State Historical Resources Code encourages the retention of historic resources on-site and discourages the non-historic grouping of historic buildings into parks or districts. However, it is recognized that moving a historic building, structure, or object is sometimes necessary to prevent its destruction.
Therefore, a moved building, structure, or object that is otherwise eligible may be listed in the California Register if it was moved to prevent its demolition at its former location and if the new location is compatible with the original character and use of the historic resource. A historic resource should retain its historic features and compatibility in orientation, setting, and general environment. (California Office of Historic Preservation, California Register and National Register: A Comparison, Technical Assistance Series 6; Sacramento, CA: California Department of Parks and Recreation, 2001)
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
Library of Congress, the California Historical
Resources Information System (CHRIS), and
the Bancroft Library, as well as local libraries
and historical societies.
(d) Retain and reuse the historic resource to
the maximum feasible extent and continue to
apply the Secretary of the Interior’s Standards
to the maximum feasible extent in all
alterations, additions, and new construction.
(e) Through careful methods of planned
deconstruction to avoid damage and loss,
salvage character-defining features and
materials for educational and interpretive use
on-site, or for reuse in new construction on the
site in a way that commemorates their original
use and significance.
(f) Interpret the historical significance of the
resource through a permanent exhibit or
program in a publicly accessible location on the
site or elsewhere within the Specific Plan Area.
Implementation of measures (b), (c), (d), (e),
and/or (f) would reduce a significant impact on
historic resources, but not to a less-than-
significant level. Without knowing the
characteristics of the potentially affected
historic resource or of the future individual
development proposal, the City cannot
determine with certainty that measure (a) or (b)
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
above would be considered feasible.
Consequently, this impact is currently
considered significant and unavoidable.
Impact 7-2: Potential for Disturbance of
Buried Archaeological Resources, Including
Human Remains, and Tribal Cultural
Resources. Development facilitated by the
Patrick Henry Drive Specific Plan could disturb
unrecorded sensitive archaeological resources
or tribal cultural resources in the Plan Area.
This possibility represents a potentially
significant impact.
S Mitigation 7-2. During the City’s standard
project-specific review process for all future,
discretionary, public improvement and private
development projects in the Patrick Henry
Drive Specific Plan Area, the City shall
determine the possible presence of, and the
potential for new or substantially more severe
impacts of the action on, archaeological
resources and tribal cultural resources. The
City shall require individual project applicants
or environmental consultants to contact the
California Historical Resources Information
System (CHRIS) to determine whether the
particular project is located in a sensitive area.
Future discretionary development projects that
CHRIS determines may be located in a
sensitive area - i.e., on or adjoining an
identified archaeological site - shall proceed
only after the project applicant contracts with
an archaeologist who meets the Secretary of
the Interior’s Professional Qualifications
Standards, to conduct a determination in
regard to cultural values remaining on the site
and warranted mitigation measures, as
described directly below.
In general, to make an adequate determination
in these instances, the archaeologist shall
conduct a preliminary field inspection to (1)
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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assess the amount and location of visible
ground surface, (2) determine the nature and
extent of previous impacts, and (3) assess the
nature and extent of potential impacts. Such
field inspection may demonstrate the need for
some form of additional subsurface testing
(e.g., excavation by auger, shovel, or backhoe
unit) or, alternatively, the need for on-site
monitoring of subsurface activities (i.e., during
grading or trenching).
In addition, the City shall continue to notify the
Native American tribes traditionally and
culturally affiliated with the Specific Plan Area
of the discretionary, public improvement and
private development projects if those proposed
improvements or projects are subject to a
CEQA Negative Declaration (including
Mitigated Negative Declaration) or
Environmental Impact Report (EIR), in
accordance with California Assembly Bill 52,
and if a Native American tribe requests
consultation, conduct a good faith consultation.
Following field inspection and completion of all
necessary phases of study as determined by
the archaeologist and the City, damage to any
identified archaeological resources shall be
avoided or mitigated to the maximum extent
possible. Preservation in place to maintain the
relationship between the artifact(s) and the
archaeological context is the preferred manner
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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of mitigating impacts on an archaeological site.
Preservation may be accomplished by:
Planning construction to avoid the
archaeological or tribal cultural site;
Incorporating the site within a park,
green space, or other open space
element;
Covering the site with a layer of
chemically stable soil; or
Deeding the site into a permanent
conservation easement.
When in-place mitigation is determined by the
City to be infeasible, a data recovery plan,
which makes provisions for adequate recovery
of culturally or historically consequential
information about the site (including artifacts
discovered on the site), subject to review and
approval by the City, shall be prepared and
adopted prior to any excavation being
undertaken. Such studies shall be submitted to
the CHRIS Northwest Information Center. If
Native American artifacts are indicated, the
studies shall also be submitted to the Native
American Heritage Commission (NAHC).
CHRIS and NAHC are recognized as experts in
their respective disciplines.
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Identified cultural resources shall be recorded
on form DPR 422 (archaeological sites).
Mitigation measures recommended by these
two groups (CHRIS and NAHC), as reviewed
and approved by the City, shall be undertaken
prior to and during construction activities.
Although the precise details of the mitigation
measures would be specific to the particular
project site, the measures shall be consistent
with the avoidance and mitigation strategies
described above in this programmatic
mitigation measure.
A data recovery plan and data recovery for a
historic resource shall not be required if the
City determines that testing or studies already
completed have adequately recovered the
necessary data, provided that the data have
already been documented in an EIR or are
available for review at the CHRIS Northwest
Information Center (CEQA Guidelines section
15126.4[b]).
Resource identification training procedures
shall be implemented for construction
personnel, conducted by an archaeologist who
meets the Secretary of the Interior’s
Professional Qualifications Standards. In the
event that subsurface cultural resources are
otherwise encountered during approved
ground-disturbing activities for a Plan Area
construction activity, work within 50 feet shall
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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be stopped and a qualified archaeologist
retained to evaluate the finds following the
procedures described above. Project
personnel shall not collect cultural resources.
Although work may continue beyond 50 feet,
the archaeologist shall be empowered to
temporarily halt or redirect construction
activities to ensure avoidance of adverse
impacts to archaeological resources.
If human remains are found, the rules set forth
in State Health and Safety Code section
7050.5 and CEQA Guidelines section
15126.4(b) apply and shall be followed.
Implementation of this measure would reduce
the impact to a less-than-significant level.
GEOLOGY AND SOILS
Impact 8-1: Effects of Strong Seismic
Ground Shaking
LS N/A N/A N/A
Impact 8-2: Potential Soil Erosion and Loss
of Topsoil
LS N/A N/A N/A
Impact 8-3: Potential Ground Instability
Impacts. The potential for ground instability
can depend on specific, highly localized
underlying soil conditions. Determination of
differential settlement, liquefaction, lateral
spreading, and subsidence potential in the
Specific Plan Area would require site-specific
geotechnical studies for future individual
S Mitigation 8-3. Subject to City review and
approval, complete and implement the
geotechnical mitigation recommendations
identified in the required individual project- and
site-specific geotechnical investigations and
engineering studies for site-specific proposals,
in coordination with City grading permit and
building permit performance standards. Such
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Mitigation
development proposals. Possible ground
instability conditions, if not properly engineered
for, could result in associated significant
damage to project buildings, other
improvements, and adjacent property, with
direct or indirect risks to life or property,
representing a potentially significant impact.
recommendations shall address design- and
construction-level details regarding engineering
issues and solutions such as the type of
building foundation, the extent of subsurface
excavation, the details of retaining structures,
and any need for subsurface water extraction.
Incorporation of this mitigation requirement
would reduce this impact to a less-than-
significant level.
Impact 8-4: Potential for Disturbance of
Paleontological Resources. Development
facilitated by the Patrick Henry Drive Specific
Plan could disturb unrecorded paleontological
resources in the Plan Area. This possibility
represents a potentially significant impact.
S Mitigation 8-4. For all public improvement and
private development projects in the Patrick
Henry Drive Specific Plan Area, the following
measures shall be implemented:
(1) Education Program. Project applicants
shall implement a program that includes the
following elements:
Resource identification training
procedures for construction personnel,
conducted by a paleontologist who
meets the Secretary of the Interior’s
Professional Qualifications Standards;
Spot-checks and monitoring by a
qualified paleontologist of all excavations
deeper than seven feet below ground
surface; and
Procedures for reporting discoveries and
their geologic context.
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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(2) Procedures for Resources Encountered. If
subsurface paleontological resources are
encountered, excavation shall halt within a
buffer area of at least 50 feet around the find,
where construction activities will not be allowed
to continue until the project paleontologist
evaluates the resource and its stratigraphic
context. Work shall be allowed to continue
outside the buffer area; however, the
paleontologist shall be empowered to
temporarily halt or redirect construction
activities to ensure avoidance of adverse
impacts to paleontological resources. During
monitoring, if potentially significant
paleontological resources are found, “standard”
samples shall be collected and processed by a
qualified paleontologist to recover micro
vertebrate fossils. If significant fossils are
found and collected, they shall be prepared to
a reasonable point of identification. Excess
sediment or matrix shall be removed from the
specimens to reduce the bulk and cost of
storage.
Itemized catalogs of material collected and
identified shall be provided to a local museum
repository with the specimens. Significant
fossils collected during this work, along with the
itemized inventory of these specimens, shall be
deposited in a local museum repository for
permanent curatorship and storage. A report
documenting the results of the monitoring and
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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salvage activities, and the significance of the
fossils, if any, shall be prepared. The report
and inventory, when submitted to the City, shall
signify the completion of the program to
mitigate impacts on paleontological resources.
Implementation of this measure would reduce
the impact to a less-than-significant level.
GREENHOUSE GAS EMISSIONS AND
ENERGY
Impact 9-1: GHG Emissions and Plan
Consistency
LS N/A N/A N/A
Impact 9-2. Wasteful, Inefficient, or
Unnecessary Consumption of Energy
Resources
LS N/A N/A N/A
Impact 9-3. Conflict with or Obstruct a
State or Local Plan for Renewable Energy
or Energy Efficiency
LS N/A N/A N/A
HAZARDS AND HAZARDOUS MATERIALS
Impact 10-1: Project-Related Potential
Impacts Due to Hazardous Materials
Transport, Use, Storage, and Disposal
LS N/A N/A N/A
Impact 10-2: Potential Exposure to Existing
Hazardous Materials Contamination
LS N/A N/A N/A
Impact 10-3: Project-Related Potential
Asbestos and PCB Exposure
LS N/A N/A N/A
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Impact 10-4: Project-Related Potential
Lead-Based Paint Exposure
LS N/A N/A N/A
Impact 10-5: Potential for Hazardous
Materials Near Schools
LS N/A N/A N/A
Impact 10-6: Protocols for Government
Code Section 65962.5 Sites
LS N/A N/A N/A
Impact 10-7: Consistency With San Jose
Airport Comprehensive Land Use Plan
LS N/A N/A N/A
HYDROLOGY AND WATER QUALITY
Impact 11-1: Construction Period and Post-
Construction Water Quality Impacts
LS N/A N/A N/A
Impact 11-2: Long-Term Water Quality
Impacts from Project Operation
LS N/A N/A N/A
Impact 11-3: Effects on Groundwater
Recharge and Groundwater Management
LS N/A N/A N/A
Impact 11-4: Drainage Patterns and Risk of
Flooding
LS N/A N/A N/A
LAND USE AND PLANNING
Impact 12-1: Project Effects on the Physical
Arrangement of the Community
LS N/A N/A N/A
Impact 12-2: Project Consistency with Land
Use Plans, Policies, and Regulations
Adopted for the Purpose of Avoiding or
Mitigating Environmental Effects
LS N/A N/A N/A
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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NOISE
Impact 13-1: Plan-Related Temporary
Construction Noise Levels. The
implementation of the Patrick Henry Drive
Specific Plan could result in construction and
development activities in the Plan Area that
generate noise levels above City standards
and/or otherwise result in a substantial,
temporary increase in ambient noise levels in
the vicinity of the Plan Area. This represents a
potentially significant impact.
S Mitigation 13-1: Reduce Construction Noise
Levels. To reduce potential noise levels from
Specific Plan related construction activities, the
City shall ensure future development projects
within the Plan Area:
1) Notify Residential and Commercial Land
Uses of Planned Construction Activities. This
notice shall be provided at least one week prior
to the start of any construction activities,
describe the noise control measures to be
implemented by the Project, and include the
name and phone number of the designated
contact for the Applicant/project representative
and the City of Santa Clara responsible for
handling construction-related noise complaints
(per Section 8). This notice shall be provided
to: A) The owner/occupants of residential
dwelling units within 500 feet of construction
work areas; B) The owner/occupants of
commercial buildings (including Mission
College) within 200 feet of construction work
areas or within 400 feet of construction work
areas if pile driving equipment will be used; and
C) Mission College when construction work
areas are within 500 feet of College athletic
fields.
2) Notify Calaveras Creek Trail Users of
Construction Activities. Prior to the start of
construction activities within 500 feet of
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Calaveras Creek Trail, signs shall be posted
along the trail warning of potential temporary
elevated noise levels during construction.
Signs shall be posted within 250 feet of
impacted trail segments (i.e., portions of the
trail within 500 feet of a work area) and shall
remain posted throughout the duration of all
substantial noise generating construction
activities (typically demolition, grading, and
initial foundation installation activities).
3) Restrict Work Hours. All construction-
related work activities, including material
deliveries, shall be subject to the requirements
of City Municipal Code Section 9.10.230.
Construction activities, including deliveries,
shall occur only during the hours of 7:00 AM to
6:00 PM, Monday through Friday, and 9 AM to
6 PM on Saturday, unless otherwise authorized
by City permit. The applicant/project
representative and/or its contractor shall post a
sign at all entrances to the construction site
informing contractors, subcontractors,
construction workers, etc. of this requirement.
4) Control Construction Traffic and Site
Access. Construction traffic, including soil and
debris hauling, shall follow City-designated
truck routes and shall avoid routes (including
local roads in the Plan Area) that contain
residential dwelling units to the maximum
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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extent feasible given specific project location
and access needs.
5) Construction Equipment Selection, Use,
and Noise Control Measures. The following
measures shall apply to construction
equipment used in the Plan Area: A) To the
extent feasible, contractors shall use the
smallest size equipment capable of safely
completing work activities; B) Construction
staging shall occur as far away from residential
and commercial land uses as possible; C) All
stationary noise-generating equipment such as
pumps, compressors, and welding machines
shall be shielded and located as far from
sensitive receptor locations as practical.
Shielding may consist of existing vacant
structures or a three- or four-sided enclosure
provide the structure/barrier breaks the line of
sight between the equipment and the receptor
and provides for proper ventilation and
equipment operations; D) Heavy equipment
engines shall be equipped with standard noise
suppression devices such as mufflers, engine
covers, and engine/mechanical isolators,
mounts, etc. These devices shall be
maintained in accordance with manufacturer’s
recommendations during active construction
activities; E) Pneumatic tools shall include a
noise suppression device on the compressed
air exhaust; F) The applicant/project
representative and/or their contractor shall
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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connect to existing electrical service at the site
to avoid the use of stationary power
generators; G) No radios or other amplified
sound devices shall be audible beyond the
property line of the construction site.
6) Implement Construction Activity Noise
Control Measures: The following measures
shall apply to construction activities in the Plan
Area: A) Demolition: Activities shall be
sequenced to take advantage of existing
shielding/noise reduction provided by existing
buildings or parts of buildings and methods that
minimize noise and vibration, such as sawing
concrete blocks, prohibiting on-site hydraulic
breakers, crushing, or other pulverization
activities, shall be employed to the maximum
extent feasible; B) Demolition Site Preparation,
Grading, and Foundation Work: During all
demolition, site preparation, grading, and
structure foundation work activities within 500
feet of a residential dwelling unit or 250 feet of
a commercial building (including Mission
College), a physical noise barrier capable of
achieving a minimum 10 dB reduction in
construction noise levels shall be installed and
maintained around the site perimeter to the
maximum extent feasible given site constraints
and access requirements. Potential barrier
options capable of achieving a 10 dB reduction
in construction noise levels could include, but
are not limited to: i) A six-foot-high concrete,
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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wood, or other barrier installed at-grade (or
mounted to structures located at-grade, such
as a K-Rail), and consisting of a solid material
(i.e., free of openings or gaps other than weep
holes) that has a minimum rated transmission
loss value of 20 dB; ii) Commercially available
acoustic panels or other products such as
acoustic barrier blankets that have a minimum
sound transmission class (STC) or
transmission loss value of 20 dB; iii) any
combination of noise barriers and commercial
products capable of achieving a 10 dBA
reduction in construction noise levels during
demolition, site preparation, grading, and
structure foundation work activities; iv) The
noise barrier may be removed following the
completion of building foundation work (i.e., it is
not necessary once framing and typical vertical
building construction begins provided no other
grading, foundation, etc. work is still occurring
on-site); and C) Pile Driving: If pile driving
activities are required within 500 feet of a
residential dwelling unit or 400 feet of a
commercial building (including Mission
College), the piles shall be pre-drilled with an
auger to minimize pile driving equipment run
times.
7) Prepare Project-Specific Construction
Noise Evaluation. Prior to the start of any
specific construction project lasting 12 months
or more, the City shall review and approve a
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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project-specific construction noise evaluation
prepared by a qualified acoustical consultant
that: A) Identifies the planned project
construction sequence and equipment usage;
B) Identifies typical hourly average construction
noise levels for project construction equipment;
C) Compares hourly average construction
noise levels to ambient noise levels at
residential and commercial land uses near
work areas (ambient noise levels may be newly
measured or presumed to be consistent with
those levels shown in Table 13-2 and 13-3 of
the Patrick Henry Drive Specific Plan Draft
Environmental Impact Report (EIR); and D)
Identifies construction noise control measures
incorporated into the project that ensure: i)
activities do not generate noise levels that are
above 60 dBA Leq at a residential dwelling unit
and exceed the ambient noise environment by
at least 5 dBA Leq for more than one year; and
ii) activities do not generate noise levels that
are above 70 dBA Leq at a commercial building
(including Mission College) and exceed the
ambient noise environment by at least 5 dBA
Leq for more than one year. Such measures
may include, but are limited to: a) The
requirements of Sections 4, 5, 6, and 8; B)
Additional project and/or equipment-specific
enclosures, barriers, shrouds, or other noise
suppression methods. The use of noise control
blankets on building facades shall be
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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considered only if noise complaints are not
resolvable with other means or methods.
8) Prepare a Construction Noise Complaint
Plan. The Construction Noise Complaint Plan
shall: A) Identify the name and/or title and
contact information (including phone number
and email) for a designated project and City
representative responsible for addressing
construction-related noise issues; B) Includes
procedures describing how the designated
project representative will receive, respond,
and resolve construction noise complaints; C)
At a minimum, upon receipt of a noise
complaint, the project representative shall
notify the City contact, identify the noise source
generating the complaint, determine the cause
of the complaint, and take steps to resolve the
complaint; D) The elements of the Construction
Noise Complaint Plan may be included in the
project-specific noise evaluation prepared to
satisfy Section 7 or as a separate document.
9) Owner/Occupant Disclosure: The City
shall require future occupants/tenants in the
Plan Area receive disclosure that properties in
the Plan Area may be subject to elevated
construction noise levels from development in
the Plan Area. This disclosure shall be
provided as part of the mortgage, lease, sub-
lease, and/or other contractual real-estate
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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transaction associated with the subject
property.
With implementation of these measures, this
impact would be less than significant.
Impact 13-2: Plan-Related Temporary
Construction Vibration Levels. The
implementation of the Patrick Henry Drive
Specific Plan could result in construction and
development activities in the Plan Area that
generate vibration levels above City standards
and/or otherwise result excessive ground-
borne vibration levels. This represents a
potentially significant impact.
S Mitigation 13-2: Reduce Construction
Vibration Levels. To reduce potential
vibration-related structural damage and other
excessive vibration levels from Specific Plan
related construction activities, the City shall
ensure future development projects within the
Plan Area:
1) Notify Residential and Commercial Land
Uses of Planned Construction Activities. See
Patrick Henry Drive Specific Plan Draft
Environmental Impact Report (EIR) Mitigation
Measure 13-1, Section 1.
2) Restrict Work Hours. See Patrick Henry
Drive Specific Plan Draft EIR Mitigation
Measure 13-1, Section 2.
3) Prohibit Vibratory Equipment if Feasible.
The use of large vibratory rollers, vibratory/
impact hammers, and other potential large
vibration-generating equipment (e.g., hydraulic
breakers/hoe rams) shall be prohibited within
100 feet of any residential building façade and
50 feet of any commercial building façade
during construction activities. Plate compactors
and compactor rollers are acceptable, and
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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deep foundation piers or caissons shall be
auger drilled.
4) Prepare Project-Specific Construction
Vibration Evaluation Plan. If it is not feasible to
prohibit vibratory equipment per Section 3) due
to site- or project-specific conditions or design
considerations, the City shall review and
approve a project-specific construction
vibration evaluation that: A) Identifies the
project’s planned vibration-generating
construction activities (e.g., demolition, pile
driving, vibratory compaction); B) the potential
project-specific vibration levels (given project-
specific equipment and soil conditions, if
known) at specific building locations that may
be impacted by the vibration-generating work
activities (generally buildings within 50 feet of
the work area); C) Identifies the vibration
control measures incorporated into the project
that ensure equipment and work activities
would not damage buildings or result in
vibrations that exceed Caltrans’ strongly
perceptible vibration detection threshold for
peak particle velocity (PPV) of 0.1 inches/
second (in/sec). Such measures may include,
but are not limited to: i) the requirements of
Sections 1, 2, and 3; ii) the use of vibration
monitoring to measure actual vibration levels;
iii) the use of photo monitoring or other records
to document building conditions prior to, during,
and after construction activities; and iv) the use
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
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Mitigation
Responsibility
Significance
With
Mitigation
of other measures such as trenches or wave
barriers; D) Identifies the name (or title) and
contact information (including phone number
and email) of the Contractor and City-
representatives responsible for addressing
construction vibration-related issues; and E)
Includes procedures describing how the
construction contractor will receive, respond,
and resolve to construction vibration
complaints. At a minimum, upon receipt of a
vibration complaint, the Contractor and/or City
representative described in the first sub-bullet
above shall identify the vibration source
generating the complaint, determine the cause
of the complaint, and take steps to resolve the
complaint by reducing ground-borne vibration
levels to peak particle velocity levels that do
not exceed accepted guidance or thresholds
for structural damage that are best applicable
to potentially impacted buildings (e.g., see
Patrick Henry Drive Specific Plan Draft EIR
Table 13-6) and Caltrans’ strongly perceptible
vibration detection threshold (PPV of 0.1
in/sec, see Patrick Henry Drive Specific Plan
Draft EIR Table 13-7).
With implementation of these measures, this
impact would be less than significant.
Impact 13-3: On-site Noise Levels from
Specific Plan Development. The
implementation of the Patrick Henry Drive
Specific Plan could result in new roadway and
S Mitigation 13-3: Control Fixed and Other
On-site Noise-Generating Sources and
Activities. To ensure on-site, operations-
related equipment and activities associated
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
2 (19035)_(PRD)
Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-41
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
infrastructure improvements and new
residential, office, and other land uses that
generate noise from on-site equipment,
activities, or other operations in excess of
applicable City standards. This represents a
potentially significant impact.
with the Specific Plan do not generate noise
levels that exceed City standards or otherwise
result in a substantial permanent increase in
ambient noise levels, future development
projects shall submit a project-specific
operational noise analysis to the City for review
and approval prior to the issuance of the first
building permit for the project, or as otherwise
determined by the City. The noise analysis
shall be prepared by a qualified acoustical
consultant and shall identify all major fixed
machinery and equipment, non-residential
truck docks/dedicated loading zones, waste
collection areas, and above ground parking
garages included in the final project design/site
plan. The noise analysis shall also document
how project noise sources and activities will
comply with the exterior sound limits
established in Municipal Code Section
9.10.040, Schedule A and the noise
compatibility guidelines in General Plan Table
8.14-1. Fixed machinery and equipment may
include, but is not limited to, pumps, fans
(including air intake or exhaust fans in parking
garages), compressors, air conditioners,
generators, and refrigeration equipment. The
control of noise from such equipment may be
accomplished by selecting quiet equipment
types, siting machinery and equipment inside
buildings, within an enclosure (e.g., equipment
cabinet or mechanical closets, or behind a
parapet wall or other barrier/shielding. Truck
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
2 (19035)_(PRD)
Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-42
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
docks/dedicated loading zones consist of a
loading dock or other dedicated area for the
regular loading and unloading of retail,
commercial, or other non-residential goods
from delivery trucks. The control of noise from
such truck docks/loading areas, waste
collection areas, and parking garages may be
accomplished by placing such areas away from
sensitive land uses, restricting activities or
operating hours for certain areas, or other
design means.
With implementation of these measures, this
impact would be less than significant.
Impact 13-4: Increases in Traffic Noise
Levels from Specific Plan Development.
The implementation of the Patrick Henry Drive
Specific Plan could generate vehicle trips that
substantially increase existing and future No
Project traffic noise levels and/or exceed City
noise and land use compatibility standards.
This represents a potentially significant
impact.
S Mitigation 13-4. No feasible mitigation is
available.
City SU
Impact 13-5: Operational Vibrations LS N/A N/A N/A
Impact 13-6: Exposure to Airport-Related
Noise
LS N/A N/A N/A
POPULATION AND HOUSING
Impact 14-1: Effects on Population Growth
LS N/A N/A N/A
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
2 (19035)_(PRD)
Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-43
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
Impact 14-2: Population and Housing
Displacement Effects
LS N/A N/A N/A
Impact 14-3: Temporary Employment
Impacts
LS N/A N/A N/A
PUBLIC SERVICES
Impact 15-1: Increase in Fire Protection/
Emergency Medical Service (EMS)
Demands
LS N/A N/A N/A
Impact 15-2: Increase in Police Service
Demands
LS N/A N/A N/A
Impact 15-3: Impacts on Public Schools LS N/A N/A N/A Impact 15-4: Impacts on Parks and
Recreational Facilities
LS N/A N/A N/A
Impact 15-5: Impacts on Other Public
Facilities
LS N/A N/A N/A
Impact 15-6: Construction Period Impacts LS N/A N/A N/A
RECREATION
Impact 16-1: Impacts on Parks and
Recreational Facilities
LS N/A N/A N/A
Impact 16-2: Construction Period Impacts
LS N/A N/A N/A
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
2 (19035)_(PRD)
Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-44
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
TRANSPORTATION
Impact 17-1: Impacts Related to Vehicle
Miles Traveled; Conflict With Adopted
Policies, Plans, or Programs Regarding
Roadways
LS N/A N/A N/A
Impact 17-2: Impacts on Transit LS N/A N/A N/A
Impact 17-3: Impacts on Bicycle Facilities LS N/A N/A N/A Impact 17-4: Impacts on Pedestrian
Facilities
LS N/A N/A N/A
Impact 17-5: Hazards Due to Design
Features or Incompatible Uses
LS N/A N/A N/A
Impact 17-6: Emergency Access LS N/A N/A N/A
UTILITIES AND SERVICE SYSTEMS
Impact 18-1: Specific Plan Inconsistency
with General Plan and UWMP Growth
Projections. The WSA prepared for the
proposed Specific Plan includes development
in the Plan Area that has not been identified in
the General Plan (i.e., exceeds the General
Plan land use projections for 2035, the General
Plan horizon year), and therefore, because the
2015 Urban Water Management Plan (UWMP)
was based on General Plan buildout
projections, this WSA is inconsistent with
General Plan and UWMP buildout projections.
(In addition, the recently adopted 2020 UWMP
was based on 2018 ABAG growth projections
S Mitigation 18-1. Consistent with SB 221 and
SB 610, no tentative map, Architectural/Design
Review, or development agreement for a
proposed, individual project shall be approved
until the City of Santa Clara Water & Sewer
Utilities Department confirms that water
supplies are adequate for each individual
project. Such confirmation shall include an
updated description of the citywide water
supply situation (including any plans for
pumping additional groundwater) at that future
time, reflecting any progress on City plans for
expanding its recycled water program and any
City requirements for implementing additional
City; Individual
project
applicants
LS
_______________________
S = Significant
LS = Less than significant
SU = Significant unavoidable impact See Table 1.1 for definitions.
NA = Not applicable
2 (19035)_(PRD)
Patrick Henry Drive Specific Plan Draft EIR
City of Santa Clara 2. Summary
July 27, 2021 Page 2-45
Impacts
Significance
Without
Mitigation
Mitigation Measures
Mitigation
Responsibility
Significance
With
Mitigation
that also did not include the Specific Plan
growth projections.) Until the Specific Plan
development exceeding General Plan growth
projections is included in the General Plan and
UWMP, (the Specific Plan is inconsistent with
the General Plan/Urban Water Management
Plan, and this inconsistency would represent a
potentially significant project and
cumulative impact.
“best management practices” (BMPs) related to
recycled water use and/or water conservation.
These City actions would ensure a continual
monitoring of citywide water supply throughout
implementation of the Specific Plan.
Additionally, incorporation of measures to
reduce water demand and, if necessary,
identification of alternative water sources to
offset project supply shortages would reduce
this impact to a less-than-significant level.
Impact 18-2: Project and Cumulative Need
for Water, Wastewater, and Storm Drainage
System Infrastructure
LS N/A N/A N/A
Impact 18-3: Wastewater Treatment
Capacity Impacts
LS N/A N/A N/A
Impact 18-4: Project Impacts on Solid
Waste Disposal and Recycling Service
LS N/A N/A N/A
Impact 18-5: Electricity, Natural Gas, and
Telecommunications Infrastructure
LS N/A N/A N/A