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PA-2000152 Project -4- 28 July 2022 <br /> San Joaquin County <br /> Clean Water Act Section 401 Permit—Water Quality Certification <br /> If an USACE permit(e.g., Non-Reporting Nationwide Permit, Nationwide Permit, <br /> Letter of Permission, Individual Permit, Regional General Permit, Programmatic <br /> General Permit),or any other federal permit(e.g.,Section 10 of the Rivers and <br /> Harbors Act or Section 9 from the United States Coast Guard),is required for this <br /> project due to the disturbance of waters of the United States(such as streams and <br /> wetlands),then a Water Quality Certification must be obtained from the Central <br /> Valley Water Board prior to initiation of project activities. There are no waivers for <br /> 401 Water Quality Certifications. For more information on the Water Quality <br /> Certification,visit the Central Valley Water Board website at: <br /> hftps://www.waterboards.ca.gov/centraIvaIley/water issues/water quality certificatio <br /> n/ <br /> Waste Discharge Requirements—Discharges to Waters of the State <br /> If USACE determines that only non-jurisdictional waters of the State (i.e.,"non- <br /> federal"waters of the State)are present in the proposed project area,the proposed <br /> project may require a Waste Discharge Requirement(WDR) permit to be issued by <br /> Central Valley Water Board. Under the California Porter-Cologne Water Quality <br /> Control Act,discharges to all waters of the State,including all wetlands and other <br /> waters of the State including, but not limited to, isolated wetlands,are subject to <br /> State regulation. For more information on the Waste Discharges to Surface Water <br /> NPDES Program and WDR processes,visit the Central Valley Water Board website <br /> at:https://www.waterboards.ca.qov/centralvalley/water issues/waste to surface wat <br /> er/ <br /> Projects involving excavation or fill activities impacting less than 0.2 acre or 400 <br /> linear feet of non-jurisdictional waters of the state and projects involving dredging <br /> activities impacting less than 50 cubic yards of non-jurisdictional waters of the state <br /> may be eligible for coverage under the State Water Resources Control Board Water <br /> Quality Order No.2004-0004-DWQ(General Order 2004-0004). For more <br /> information on the General Order 2004-0004,visit the State Water Resources <br /> Control Board website at: <br /> hftps://www.waterboards.ca.gov/board decisions/adopted orders/water quality/200 <br /> 4/wqo/wclo 2004-0004.pdf <br /> Dewatering Permit <br /> If the proposed project includes construction or groundwater dewatering to be <br /> discharged to land,the proponent may apply for coverage under State Water Board <br /> General Water Quality Order(Low Threat General Order)2003-0003 or the Central <br /> Valley Water Board's Waiver of Report of Waste Discharge and Waste Discharge <br /> Requirements(Low Threat Waiver)R5-2018-0085. Small temporary construction <br /> dewatering projects are projects that discharge groundwater to land from excavation <br /> activities or dewatering of underground utility vaults. Dischargers seeking coverage <br /> under the General Order or Waiver must file a Notice of Intent with the Central <br /> Valley Water Board prior to beginning discharge. <br /> For more information regarding the Low Threat General Order and the application <br /> process,visit the Central Valley Water Board website at: <br /> PA-2000152 (ZR) Informational Letters 16 <br />