Res04 14590 - Laserfiche WebLink

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Legend. Applicant = project applicant, City = City of Redwood City Page 33 May 18, 2004 WP9.016451MMCHT.645 MG. . ORING VERIFIL.. . ION IDENTIFIED IMPACT RELATED MITIGATION MEASURE Impl. Type of Impl. Monitoring and Timing Signature Date (CONDITION OF APPROVAL) Entity Action Verification Entity Requirements no more than 10 percent above ambient levels. • The contractor shall minimize dust through regular watering of bare ground and use Best Management Practices to prevent construction debris and loose soil from falling into the Bay. • The dredging contractor (i.e., for the flushing channel) shall continuously monitor the quality of sediments being mobilized, and Best Management Practices will be employed to prevent the re- suspension of contaminants in the Bay. • The dredging procedure (i.e., for the flushing channel) shall involve the use of a suction dredge that minimally disturbs adjacent sediments. Clamshell dredging shall not be used unless all the sediments have been previously determined to be free of pesticides, heavy metals, PCPs, and fossil fuel by- products. • In order to minimize hydroacoustic shockwaves from pile driving, the contractor shall use a vibratory hammer to drive sheet pile and piles in the marinas. In the event that a percussive pile - driving hammer is required for driving piles in the water, the contractor shall integrate an approved bubble curtain into the pile - driving system. Also, implement Mitigation 8 -5 for the loss of approximately 9.8 acres of estuarine habitat. The City of Redwood City shall not issue a grading permit for the project until the steelhead and chinook salmon issues are Legend. Applicant = project applicant, City = City of Redwood City Page 33 May 18, 2004 WP9.016451MMCHT.645