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57WA 5 <br /> ENVIRONMENTAL,INC. RECEIVED <br /> 3330 Cameron Park Drive, Ste 550 <br /> Cameron Park, California 95682 <br /> (530)676-6004-Fax: (530)676-6005 <br /> MAY 0 5 2014 <br /> ENVIRONMENTAL HEWH May 1, 2014 <br /> PERMITISERVICES Project No. 2092-2057-01 <br /> City of Stockton <br /> Municipal Utilities Department <br /> Attn: Michelle Price <br /> 2500 Navy Drive <br /> Stockton, CA 95206 <br /> Re: Application to Discharge Extracted Groundwater to the Sanitary Sewer <br /> Quick-N-Save#2, 2057 S. El Dorado Street. Stockton, California <br /> Dear Ms. Price: <br /> Stratus Environmental, Inc. (Stratus) has prepared this letter, on behalf of Mr. Charan <br /> Dhillon, to request a permit for continuous discharge of treated groundwater to the <br /> sanitary sewer at the Quick-N-Save #2 facility located at 2057 South El Dorado Street, <br /> Stockton, California (Figure 1). A completed permit application is included in <br /> Appendix A. <br /> Petroleum hydrocarbon impact to the subsurface has previously been documented at the <br /> subject property, and San Joaquin County Environmental Health Department (SJCEHD) <br /> currently regulates an environmental case for the site. In January 2010, a previous <br /> consulting firm representing Mr. Dhillon (Advanced GeoEnvironmental [AGE]) installed <br /> subgrade lateral conveyance piping to four vapor extraction wells (VW-1 through VW-4) <br /> and two remediation wells intended for groundwater extraction (EW-I and EW-2). <br /> Vadose zone remediation of petroleum hydrocarbons has been performed using soil <br /> vapor extraction (SVE) equipment, however, groundwater remediation using wells EW-1 <br /> and EW-2 for extraction and treatment of groundwater was never implemented. Stratus <br /> prepared a Groundwater Remediation Work Plan, dated September 13, 2013, proposing <br /> implementation of groundwater remediation, which was subsequently approved by <br /> SJCEHD on September 20, 2013. <br /> Stratus proposes to install a groundwater pump and treat (GWP&T) system that will <br /> extract groundwater from a network of wells using submersible pumps. The remediation <br /> system will operate continuously 24 hours a day, 365 day per year, for approximately 2 <br /> years. Extracted groundwater will be treated using three 1,000-pound (lb) granular <br /> activated carbon (GAC) units, in series, prior to discharge to the sanitary sewer. <br /> Pertinent site features and proposed locations for the DPE system and sewer discharge <br /> are presented in Figure 2. A process flow and instrumentation diagram is presented in <br /> Figure 3. <br /> KAQuick N Save#2\Correspondence\QNS#2 Wastewater discharge permit app April 2014.doc <br />