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projects are required by the Development Title to provide drainage facilities within and downstream from the development project(Development Title Section 9-1135.2). The project will be conditioned by the Department of Public Works to provide drainage facilities in accordance with the San Joaquin County Development Standards. The proposed project plan calls for storm water to be retained in an on-site retention pond. Public Works will require that retention basin capacity be calculated and submitted along with a drainage plan for review and approval, prior to release of a building permit.Additionally,the Public Works department requires that the applicant submit a"Storm Water Pollution Prevention Plan" (SWPPP) to Public Works for review. A copy of the approved SWPPP and all required records, updates, test results and inspection reports must be maintained on the construction site and be available for review upon request. The applicant will also be required to file a Notice of Intent(NOI)with the State Water Resources Control Board (SWRCB) and comply with the State "General Permit for Storm Water Discharges Associated with Construction Activity". The post construction chapter of the SWPPP must identify expected pollutants and how they will be prevented from entering the storm system. The chapter must also contain a maintenance plan, a spill plan, and a training plan for all employees on proper use, handling and disposal of potential pollutants. With the project thus conditioned, impacts from drainage are expected to be less than significant. PA-1800106 (RAA, UP)—Initial Study 19