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Revision of Approved Action No . - 4 - 7 August 2023 <br /> PA - 1700291 Project <br /> San Joaquin County <br /> https : //www . waterboards . ca . gov/ board decisions / adopted orders /water quality/200 <br /> 4/wg o/wgo2004 - 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 /> http : //www . waterboards . ca . gov/ board decisions /adopted orders/water quality/ 2003 / <br /> wqo /wgo2003 - 0003 . pdf <br /> For more information regarding the Low Threat Waiver and the application process , <br /> visit the Central Valley Water Board website at : <br /> https : //www . waterboards . ca . qov/centraIvaIley/ board decisions / adopted orders /waiv <br /> ers / r5 - 2018 - 0085 . pdf <br /> Limited Threat General NPDES Permit <br /> If the proposed project includes construction dewatering and it is necessary to <br /> discharge the groundwater to waters of the United States , the proposed project will <br /> require coverage under a National Pollutant Discharge Elimination System ( NPDES ) <br /> permit . Dewatering discharges are typically considered a low or limited threat to <br /> water quality and may be covered under the General Order for Limited Threat <br /> Discharges to Surface Water ( Limited Threat General Order) . A complete Notice of <br /> Intent must be submitted to the Central Valley Water Board to obtain coverage under <br /> the Limited Threat General Order . For more information regarding the Limited <br /> Threat General Order and the application process , visit the Central Valley Water <br /> Board website at : <br /> https : //www . waterboards . ca . gov/centraIvaIley/ board decisions / adopted orders/ gene <br /> ral orders / r5 - 2016 - 0076 - 01 . pdf <br /> NPDES Permit <br /> If the proposed project discharges waste that could affect the quality of surface <br /> waters of the State , other than into a community sewer system , the proposed project <br /> will require coverage under a National Pollutant Discharge Elimination System <br /> ( NPDES ) permit . A complete Report of Waste Discharge must be submitted with the <br /> Central Valley Water Board to obtain a NPDES Permit . For more information <br /> regarding the NPDES Permit and the application process , visit the Central Valley <br /> Water Board website at : https : //www . waterboards . ca . gov/centralvalley/ help / permit/ <br />