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CALIFORNIA REGIONSNATER QUALITY CONTROL BOARD , Cab EPA <br /> CENTRAL VALLEY REGION <br /> e 3443 toRoad, Suite <br /> `�. <br /> Sacramento, <br /> ,CA 95827-3003 <br /> Phone(916)255-3000 <br /> FAX(916)255-3015 Pete Wilson,Governor <br /> 14 April 1998 <br /> Mr. Francis Lau <br /> Senior Civil Engineer <br /> County of San Joaquin <br /> Department of Public Works <br /> P.O. Box 1810 <br /> 1810 East Hazelton Ave. <br /> Stockton, CA 95201-1810 <br /> LINCOLN VILLAGE CENTER GROUNDWATER TREATMENT SYSTEM NPDES PERMIT, SAN <br /> JOAQUIN COUNTY <br /> I have received your 27 March 1998 letter entitled Lincoln Village Center-Groundwater Treatment <br /> System-National Pollutant Discharge Elimination System No. CA 00844255. In your letter you raised <br /> two issues regarding the tentative waste discharge requirements (WDRs) and National Pollutant <br /> Discharge Elimination System (NPDES)perniit for the proposed Settling Dry Cleaning Defendants' <br /> (SDCDs) groundwater treatment system at Lincoln Village Center. <br /> 1. The first issue is whether a discharge of treated groundwater to the storm drain by the SDCDs that <br /> violates the NPDES permit effluent limits would result in a violation of the County's WDRs and <br /> NPDES permit. The County of San Joaquin and City of Stockton's joint WDRs and NPDES permit <br /> that govern storm water discharge for the Lincoln Village.Center(Order No. 95-035 and NPDES No. <br /> CA0083470,hereafter referred to as the Order) makes several findings along with establishing <br /> effluent and receiving water limitations that address this issue. <br /> The Order specifically allows the discharge of NPDES permitted non-storm water discharges <br /> (Discharge Prohibition A.1). The Order requires the implementation of Best Management Practices <br /> (BMPs)to control and abate the discharge of pollutants in storm water discharges (Provision D.2). <br /> Implementation of BMPs, in accordance with the County's Storm Water Management Program <br /> (SWMP) constitutes compliance with requirements to achieve water quality standards (Provision <br /> D.2). Compliance with the Order can be demonstrated through timely implementation of BMPs and <br /> other actions to reduce pollutants in storm water discharges in accordance with the SWMP <br /> (Provision D.2). The Order also states the a receiving water condition not in conformance with the <br /> limitations is not necessarily a violation of the Order. The Board may require an investigation to <br /> determine cause and culpability prior to asserting a violation has occurred. <br /> Recycled Paper Our mission is to preserve and enhance the quality of California's water resources,and <br /> ensure their proper allocation and efficient use for the benefit of present andfuture generations. <br />