2011-7072 SUBJECT: Sanjeev Acharya - City of Sunnyvale - State ...

Planning
based on other substantial evidence
of a known fault?
-
32. Seismic Safety - Inundation by
seiche, tsunami, or mudflow?
33. Seismic Safety-Strong seismic
ground shaking?
34. Seismic Safety-Seismic-related
ground failure, including liquefaction?
[?
-
Page
Initial Study Checklist
ect Name: 110 Connemara Way
File #2011-7072
Page 9 of 22
Source Other Than Project
Description and Plans
Element of the Sunnyvale General
Plan
www.sunnwaIeplanninq.com
www.sunnwaleplanninq.com
Further Discussion if "Less than Significant" with or without mitigation:
0
Seismic Safety and Safety Sub-
Element of the Sunnyvale General
Pian
www.sunnwale~lannina.com
r n m v
Element of the Sunnyvale General
Plan
2. Aesthetics (Less than Significant): The City's implementation of the Single-Family Design Guidelines and staff's
review of final development plans, which will be submitted for final Building Permit review, will ensure that the final design
of the project is consistent with the plans reviewed by the Planning Commission. The project will not degrade the visual
character or quality of the site and its surroundings. As a result, this impact will be less than significant.
4. Population and Housing (Less than Significant): The proposed four single-family units are consistent with the
allowable density of the current zoning and General Plan designation of the site. The new homes would provide additional
home ownership opportunities and would have a slight incremental impact to the City's JobslHousing balance. This minor
increase in population is considered a less than significant impact.
9. Transportation and Traffic (Less than Significant): The proposed project meets the City's parking requirements by
providing a two-car garage for each unit.
14. Noise (Less than Significant with Mitigation): An Acoustical Analysis was completed by Edward L. Pack
Associates, Inc. in January 2011. The study measured noise levels at a location just east of the SunnyvaleSaratoga
Road. Noise levels were measure at DNL 71 dB. To account for future traffic volumes, Id6 was added to the measured
DNL. A future DNL of 72 dB is expected for the exterior noise levei. This levei is considered conditionally acceptable. in
order to meet the City's goal of 60 dB in the yards nearest to Sunnyvale-Saratoga Road, a reduction of 12 dB is needed.
An interior noise level of 55 db is also expected to occur in the living spaces of the eastern units adjacent to Sunnyvale-
Saratoga Ave. To achieve this reduction the following mitigation measures are needed:
WHAT: 1) A wall must be constructed aiong the west property line will need to be 8 feet high but may be lowered
or raised as necessary to match the height of the existing masonry sound wail on Sunnyvale-Saratoga
Avenue.
2) The wall must extend aiong a portion of the south property line at Lot 4 and will need to be seven feet
high (extends approximately 20 feet east from Sunnyvale-Saratoga Avenue).
3) The wall must extend eastward along the property line of Lot 3 along Connemara Way and will need to
be six feet high (extends approximately 20 feet east from Sunnyvale-Saratoga Avenue).