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PA-1700052 (SA) Project - 3 - 24 January 2018 San Joaquin County (SWPPP). For more information on the Construction General Permit, visit the State Water Resources Control Board website at: http://www.waterboards.ca.gov/water_issues/prog rams/stormwater/constperm its.shtm I. Phase I and II Municipal Separate Storm Sewer System (MS4) Permits' The Phase I and II MS4 permits require the Permittees reduce pollutants and runoff flows from new development and redevelopment using Best Management Practices (BMPs) to the maximum extent practicable (MEP). MS4 Permittees have their own development standards, also known as Low Impact Development (LID)/post-construction standards that include a hydromodification component. The MS4 permits also require specific design concepts for LID/post-construction BMPs in the early stages of a project during the entitlement and CEQA process and the development plan review process. For more information on which Phase I MS4 Permit this project applies to, visit the Central Valley Water Board website at: http://www.waterboards.ca.gov/centralval ley/water_issues/storm_wate r/m unici pal_perm its/. For more information on the Caltrans Phase I MS4 Permit, visit the State Water Resources Control Board at: http://www.waterboards.ca.gov/water_issues/prog rams/stormwater/caltrans.shtml. For more information on the Phase 11 MS4 permit and who it applies to, visit the State Water Resources Control Board at: http://www.waterboards.ca.g ov/water_issues/programs/stormwater/phase_i i_m unici pal.sht ml Industrial Storm Water General Permit Storm water discharges associated with industrial sites must comply with the regulations contained in the Industrial Storm Water General Permit Order No. 2014-0057-DWQ. For more information on the Industrial Storm Water General Permit, visit the Central Valley Water Board website at: http://www.waterboards.ca.gov/centralvalley/water_issues/storm_water/industrial_general_ perm its/index.shtml. Clean Water Act Section 404 Permit If the project will involve the discharge of dredged or fill material in navigable waters or wetlands, a permit pursuant to Section 404 of the Clean Water Act may be needed from the Municipal Permits=The Phase I Municipal Separate Storm Water System (MS4) Permit covers medium sized Municipalities(serving between 100,000 and 250,000 people) and large sized municipalities (serving over 250,000 people). The Phase II MS4 provides coverage for small municipalities, including non-traditional Small MS4s,which include military bases, public campuses, prisons and hospitals.