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PA-1800316(UP) Project -4- 17 January 2019 San Joaquin County If you have any questions regarding the Clean Water Act Section 404 permits, please contact the Regulatory Division of the Sacramento District of USACE at(916)557-5250. Clean Water Act Section 401 Permit—Water Quality Certification If an USACE permit(e.g., Non-Reporting Nationwide Permit, Nationwide Permit, Letter of Permission, Individual Permit, Regional General Permit, Programmatic General Permit), or any other federal permit(e.g.,Section 10 of the Rivers and Harbors Act or Section 9 from the United States Coast Guard), is required for this project due to the disturbance of waters of the United States(such as streams and wetlands),then a Water Quality Certification must be obtained from the Central Valley Water Board prior to initiation of project activities. There are no waivers for 401 Water Quality Certifications. For more information on the Water Quality Certification,visit the Central Valley Water Board website at: https:l/www.waterboards.ca.9ov/centraIvaI ley/water issues/water_qu aIity_certification/ Waste Discharge Requirements—Dischar es to Waters of the State if USACE determines that only non-jurisdictional waters of the State(i.e., "non-federal" waters of the State)are present in the proposed project area,the proposed project may require a Waste Discharge Requirement(WDR)permit to be issued by Central Valley Water Board. Under the California Porter-Cologne Water Quality Control Act, discharges to all waters of the State, including all wetlands and other waters of the State including, but not limited to, isolated wetlands, are subject to State regulation. For more information on the Waste Discharges to Surface Water NPDES Program and WDR processes,visit the Central Valley Water Board website at. https://www.waterboards.ca.gov/centraIvaIley/water_issueslwaste_to_surface_water/ Dewatering Permit If the proposed project includes construction or groundwater dewatering to be discharged to land,the proponent may apply for coverage under State Water Board General Water Quality Order(Low Risk General Order)2003-0003 or the Central Valley Water Board's Waiver of Report of Waste Discharge and Waste Discharge Requirements(Low Risk Waiver)R5-2013-0145. Small temporary construction dewatering projects are projects that discharge groundwater to land from excavation activities or dewatering of underground utility vaults. Dischargers seeking coverage under the General Order or Waiver must file a Notice of Intent with the Central Valley Water Board prior to beginning discharge. For more information regarding the Low Risk General Order and the application process, visit the Central Valley Water Board website at: http://www.waterboard s_ca.g ov/board_deci sions/ado pted_orders/water_q u al ity/2003/wq olw go2003-0003.pdf For more information regarding the Low Risk Waiver and the application process,visit the Central Valley Water Board website at: Planning Commission Staff Report, PA-1800316(UP) 45 Response Letters