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Mitigation Monitoring and Reporting Program B. Infras[mcture Systems: Drainage <br />Page 12 <br />INFRASTRUCTURE SYSTEMS: DRAINAGE <br />Mitigation Measure: Rlb. The detenfion/retention facilities should be operated to contain <br />and release runoff at a rate consistent with the Zone 7 Master <br />Plan. <br />Impact to be Mifigated: Runoff from the site under [he 100-year Flood may contribute to cumula- <br />tive downstream flooding and channel erosion if onsi[e facilities are <br />improperly sized or managed. <br />Agency/Individual <br />Responsible for <br />Implementation: (1) Site developer. <br />(2) City of Pleasanton, Public Works <br />Implementation Timing: Reach agreement and coordinate with Zone 1 re: appropriate performance <br />standards prior to construction of detention/retention facilities. <br />Conduct operations/maintenance activities upon completion of detention/ <br />retention facilities and monitor operations on an ongoing basis [o verify <br />consistency with performance standard over the life of [he project. <br />Mitigation Specifications: (1) Establish performance standards satisfactory to Zone 7 for operation <br />and maintenance of detention/retention facilities. <br />(2) After Zone 7 completes its Master Plan, review performance of <br />detention /retention facilities to ensure that [he facilities are <br />consistent with [he Zone 7 Master Plan. <br />Agency/lodividual <br />Responsible (or <br />Monitoring: Cit <br />Action by Monitor: (p <br />(~) <br />Monitoring Timing: (1) <br />(2) <br />y of Pleasanton, Public Works Department <br />Verify agreement nn performance standards between site developer <br />and Zone 7. <br />Verify that performance meets Zone 7 Master Plan. <br />Prior to issuance of a grading permit for any parcel <br />Following Zone 7 completion of Master Plan <br />Monitor: Completion Date: Signature: <br />