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Heather Shaddox -5- 30 October 2015 <br /> Petralogix Engineering, Inc. <br /> Program, call the Central Valley Water Board phone line at (916) 464-4611 or e-mail <br /> board staff at IrrLands@waterboards.ca.gov. <br /> Dewatering Permit <br /> If the proposed project includes construction dewatering and groundwater will be discharged to <br /> land, the proponent may apply for coverage under State Water Board General Water Quality <br /> Order (Low Risk General Order) 2003-0003 or the Central Valley Water Board's Waiver of <br /> Report of Waste Discharge and Waste Discharge Requirements (Low Risk Waiver) <br /> R5-2013-0145. Small temporary construction dewatering projects are projects that discharge <br /> groundwater to land from excavation activities or dewatering of underground utility vaults. <br /> Dischargers seeking coverage under the Low Risk General Order or Low Risk Waiver must file <br /> a Notice of Intent with the Central Valley Water Board prior to beginning discharge. <br /> For more information regarding the Low Risk General Order and the application process, visit <br /> the Central Valley Water Board website at: <br /> http://www.waterboards.ca.gov/board decisions/adopted orders/water quality/2003/wqo/wgo20 <br /> 03-0003.pdf <br /> For more information regarding the Low Risk Waiver and the application process, visit the <br /> Central Valley Water Board website at: <br /> http://www.waterboards.ca.gov/centralvallev/board decisions/adopted orders/waivers/r5-2013- <br /> 0145 res.pdf <br /> If groundwater will be discharged to waters of the United States or storm drains, the proposed <br /> project will require coverage under a National Pollutant Discharge Elimination System (NPDES) <br /> permit. Dewatering discharges are typically considered a low or limited threat to water quality <br /> and may be covered under the General Order for Dewatering and Other Low Threat Discharges <br /> to Surface Waters (Low Threat General Order) or the General Order for Limited Threat <br /> Discharges of Treated/Untreated Groundwater from Cleanup Sites, Wastewater from <br /> Superchlorination Projects, and Other Limited Threat Wastewaters to Surface Water(Limited <br /> Threat General Order). A complete application must be submitted to the Central Valley Water <br /> Board to obtain coverage under these General NPDES permits. <br /> For more information regarding the Low Threat General Order and the application process, visit <br /> the Central Valley Water Board website at: <br /> http://www.waterboards.ca.gov/centralvaliev/board decisions/adopted orders/general orders/r5 <br /> -2013-0074.pd <br /> For more information regarding the Limited Threat General Order and the application process, <br /> visit the Central Valley Water Board website at: <br /> hftp://www.waterboards.ca.gov/centralvalley/board decisions/adopted orders/general orders/r5 <br /> -2013-0073.pdf <br /> If you have any questions about the storm water program, please call Steve Rosenbaum at <br /> (916) 464-4631. Additional information is available via the Internet at the Regional Board's <br /> Storm Water website http://www.waterboards.ca.gov/centralvalley/water issues/storm water/. <br /> For more information on Section 404 Permits contact the Sacramento District of the Corps of <br /> Engineers at (916) 557-5250 or Elizabeth Lee with the Regional Board at (916) 464-4787. For <br />