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MONITQRING VERIFICATION <br />IDEND IMPACT RELATED MITIGATION MEASURE lmptementation Monitoring and Timing Signature Date <br /> Enti Verification Enti R uirements <br />Impac~'~Z: Precise Pian-Facilitated Mitigation 11-2. Reduce ground-borne Individual City Condition of grading permit <br />Ground-erne Vibration Levels. Precise vibration levels during individual, site- project issuance; field verify <br />Plan implementation-related individual project specific future project demolition and applicants implementation during grading <br />dernolitio~nd construction activities could construction periods by incorporafing and construction. <br />generate pybstanifal vibration (e.g., from conditions in individual project demolition <br />potential pile driving} in the project vicinity. and construction contractor agreements <br />These po~ible intermittent and short-term that stipulate the foAowing ground-borne . <br />effects resent a potentially signifrcant vibration abatement measures: <br />impact. <br />• Restrict vibration-generating activity <br /> to between the hours of 7:00 AM and <br /> 7:00 PM, Monday through Friday. <br /> Prohibit such activity on weekends <br /> and holidays. <br /> • Notify occupants of land uses located <br /> within 200 feet of pile-driving <br /> activities of the project construction <br /> schedule in writing. <br /> • Investigate in consultation with City <br /> staff possible pre-drilling of pile holes <br /> as a means of minimizing the <br /> number of percussions required to <br /> seat the pile. <br /> Implementation of these measures vdould <br /> reduce this potential intermittent and short- <br /> term Precise Plan vibration impact to a <br /> less-tha»-sf n~cant Level. <br />Impact 11-3: Potential Exposure of New, Mitigation 11-3. Site-specific noise studies Individual City Condition of building permit <br />Precise Plan-Facilitated Noise-Sensitive consistent with the requirements of the <br />h <br />ll b <br />d <br />SBC project <br />licants <br />a issuance; field verify <br />implementation during <br />Development to Noise Levels Exceeding } s <br />a <br />e <br />e ( <br />State Building Go pp construction <br />Standards. The proposed Precise Plan conducted for all new Precise Plan- . <br />would facilitate new residental development facilitated residential uses in these <br />in downtown Redwood City. Assoaated new identified potential land uselnoise <br />residents, employees, and visitors could be compatibility impact areas to identify <br />exposed to various existing and projected appropriate noise reduction measures to be <br />noise sources, including traffic and Caltrain included in project Snal design. Each noise <br />operations. The compatibility of the Draft study must be submitted to and approved <br />Prec~ Plan proposed land uses with the by the Redwood City Building Department <br />ti <br />l <br />f <br />id <br />exrst~rg and projected noise environment has en <br />a <br />a res <br />prior to City issuance o <br />been~Vdlraated based on the Redwood City building permit. Identified noise insulation <br />Noisi##~delines for Land Use Planning (see measures may include: <br />EIR ~b 11.4). New residential <br />devnt is considered normally <br />Site planning to minimize noise in <br />acceptable in noise environments of less than shared residentai outdoor activity <br />55 dBA CNEL, and new cammeraai or retail areas by iocating the areas behind <br />Page 26 U:IMy DocumentslDowntown Precise War`•CC sfaHreportslCC 3.12.doct3.12.07 ExhibitsiAttachment A mrt.mo.~itoring checklist 655.doc <br />