Agmt09 TRA Environmental Sciences, Inc

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1250, 1252, and 1254 Edgewood Road, Redwood City Initial Study/Mitigated Negative Declaration Proposal March 25, 2009 Page 19 project required annexation of a three acre parcel in San Mateo County. While consistent with land uses, the proposed homes were close to the backyards of neighbors in the City of San Mateo. The major issues addressed in the EIR were impacts of concern to the neighbors and required mitigation included geology and soils, removal of native trees, encroachment on a blue line stream riparian corridor, traffic impacts on local streets, construction noise and visual impacts. The Applicant committed to rigorous construction mitigations and a Landscape Maintenance Declaration that bound the future homeowners to replace lost trees and maintain new plantings, and restore degraded habitat. Lead Agency/Client: Town of Hillsborough Rajkovich Project EIR Hollister, San Benito County, 1999 The project is prezoning 22 acres of farmland outside the city limits of Hollister for Low Density Residential development. This zoning designation would allow the future development of up to 101 single family detached homes. Prezoning the property was the first step toward annexation into the city and its ultimate use for residential housing. The impacts of the project were assessed in relation to the overall growth levels occurring through the planning area of the City. The EIR addressed the impacts of changing the land from agriculture to urban use and the impact of the future residents on the demand for city services. Lead Agency/Client: City of Hollister Fairmont Estates Subdivision EIR and Addendum Pacifica, San Mateo County, 1998 and 2001 TRA prepared an EIR for a residential project located on an 8.8-acre parcel within the Fault- Rupture Hazard Zone as defined under the Alquist Priolo Earthquake Fault Zoning Act. The project would subdivide the parcel into 50 lots and construct a single family detached luxury home in each lot. The project site was extensively trenched and 5 traces of the San Andreas fault which demonstrated evidence of recent (past 11,000 years) seismic activity were mapped. Setbacks were defined for each fault trace and all proposed building footprints had to be sited outside of these seismic safety setback corridors. The project road network and infrastructure trenches were sited within the setback corridors as was a 1.75 acre area which was proposed for a combination of uses including a retention basin, landscaped recreation area and possible mitigation site. The project also included the construction of a new intersection with a State Highway as the principal access. The primary focus of the environmental assessment was the public safety issues associated with severe ground-shaking and surface rupture. In addition to the assessment of the adequacy of the proposed setbacks, the presence of two large capacity public water supply reservoirs perched above the project site posed potential flooding hazards to any future residents. The failure potential of these two offsite water tanks, with a combined 5 million gallon capacity, was determined during the EIR process. Both tanks were found to be susceptible to failure in the event of a large magnitude earthquake on the San Andreas fault. Mitigation with set performance standards was developed to the satisfaction of the City which would require a final tank failure di version plan to be prepared prior to approval of the grading permit. Other significant issues addressed including requirements for survey for the State and federally-listed endangered San Francisco garter snake, requirements for on-site storage and evaluation of capacity in the City's TRA ENVIRONMENTAL SCIENCES, INC.