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General Plan Amendment No . PA - 4 - 24 January 2023 - 2000217 , Zone Reclassification No . PA- 2200021 , Major Subdivision No . PA- 2000218 , Williamson Act Cancellation No . PA- 2200070 Project San Joaquin County NPDES Program and WDR processes , visit the Central Valley Water Board website at : https : //www . waterboards . ca . gov/centralvalley/water issues /waste to surface wat e r/ Projects involving excavation or fill activities impacting less than 0 . 2 acre or 400 linear feet of non -jurisdictional waters of the state and projects involving dredging activities impacting less than 50 cubic yards of non -jurisdictional waters of the state may be eligible for coverage under the State Water Resources Control Board Water Quality Order No . 2004 - 0004 - DWQ ( General Order 2004 - 0004 ) . For more information on the General Order 2004 - 0004 , visit the State Water Resources Control Board website at : https : //www . waterboards . ca . gov/board decisions/ adopted orders/water quality/200 4 /wg o /wg o2004 - 0004 . pdf 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 Threat General Order) 2003 - 0003 or the Central Valley Water Board ' s Waiver of Report of Waste Discharge and Waste Discharge Requirements ( Low Threat Waiver) R5 - 2018 - 0085 . 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 Threat General Order and the application process , visit the Central Valley Water Board website at : http : //www . waterboards . ca . gov/ board decisions/ adopted orders /water quality/2003 / wqo /wgo2003 - 0003 . pdf For more information regarding the Low Threat Waiver and the application process , visit the Central Valley Water Board website at : https : //www . waterboards . ca . gov/centralvalley/ board decisions/adopted orders/waiv e rs/ r5 -2018 - 0085 . pdf Limited Threat General NPDES Permit If the proposed project includes construction dewatering and it is necessary to discharge the groundwater to waters of the United States , the proposed project will require coverage under a National Pollutant Discharge Elimination System ( NPDES ) permit . Dewatering discharges are typically considered a low or limited threat to water quality and may be covered under the General Order for Limited Threat Discharges to Surface Water ( Limited Threat General Order) . A complete Notice of Intent must be submitted to the Central Valley Water Board to obtain coverage under the Limited Threat General Order . For more information regarding the Limited Threat General Order and the application process , visit the Central Valley Water