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a`a KL E/NFEL DER ` Bright People.Right Solutions. 1 Mitigation Measures: None required Storm Drainage Services ' The City of Stockton provides storm drain service to the project site. The proposed project would involve an incremental rise in storm water generation. The project site ' has been in industrial use, and existing lines on the site are sized to handle planned development. Storm runoff water quality is regulated by the federal Clean Water Act through the National Pollutant Discharge Elimination System (NPDES). The NPDES requirements are delegated to the California Regional Water Quality Control Boards (RWQCB); ' Stockton is in the jurisdiction of the Central Valley RWQCB. The state has adopted separate general permits to control storm water pollution from construction and industrial activities. The City of Stockton Storm Water Management Program includes regulations which establish local oversight of the state general permit system and more effective control of storm water quality and volume impacts. These requirements, which require the inclusion of low-impact development and volume reduction measures in areas of new development, are discussed in detail in Section 8, Hydrology and Water Quality. Compliance with applicable state and local NPDES requirements and the grading ordinance would avoid significant water quality impacts of project construction. ' New development within the project would be paved and graded to direct the runoff to Best Management Practices as defined in the City's Storm Water Quality Criteria Control Plan. Therefore, runoff from the project site would have an acceptable level of ' contamination prior to discharge into the City's drainage system. It is expected that existing sewer, water and storm drainage lines in the project vicinity would be adequate to support the project. However, connecting lines from the site to the larger existing may be required. Mitigation described below would ensure that on- site utilities would adequately provide service to City and CalWater standards. Level of Significance: Potentially significant ' Mitigation Measures: 1. The ODS shall submit detailed improvement plans that show all off-site utilities necessary to provide water, storm and sanitary sewer utility service. These plans shall be acceptable to the Director of Municipal Utilities and approved by the City Engineer prior to the approval of improvement plans. after Mitigation: Less than significant. Significance aft g 121339/ST011 R226 3-65 October 14, 2011 Copyright 2011 Kleinfelder