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A, <br /> STWAT 5 <br /> EiVVIRO(>INIE.'IT, INC. 3330 Cameron Park Drive, Ste 550 <br /> ^ f f Carglon Park, California 95682 <br /> (530)676-6004-Fax:(530)676-6005 <br /> October 19, 2000 <br /> Project No. 2007-0065-01 <br /> Ms. Lisa Middleton <br /> San Joaquin Valley Air Pollution Control District <br /> 4230 Kiernan Avenue, Suite 130 <br /> Modesto, California 95356-9322 <br /> Re: Source Test Results for the Soil Vapor Extraction and Abatement System for USA <br /> Service Station No. 65. Located at 2500 W. Lodi Avenue, Lodi California. <br /> Dear Ms. Middleton: <br /> On behalf of USA Gasoline Corporation (USA), Stratus Environmental, Inc (Stratus) has <br /> prepared this report to present the results of the startup and source testing of the soil vapor <br /> extraction and treatment (SVE) system at USA Station No. 65 located at 2500 W. Lodi <br /> Avenue, Lodi, California (see figure 1). The startup and source testing was conducted on <br /> August 15 and 21, 2000. <br /> The SVE consists of a Stealth Industries electric catalytic oxidizer, Model 150 Bobcat rated at <br /> 150-cubic-feet-per-minute (cfrn). The SVE system is connected to three vapor extraction <br /> wells, S-1, S-2 and MW-8 (see Figure 2). The Stealth Bobcat consists of a Roots rotary <br /> positive displacement blower which is used to extract petroleum hydrocarbon laden soil <br /> vapors. The extracted soil vapors are abated in the catalytic oxidizer prior to discharge to the <br /> atmosphere. Electricity is used to maintain the appropriate oxidizer temperature (750 to 800 <br /> degrees Fahrenheit). <br /> The source tests conducted were consistent with the requirements identified in the conditions <br /> listed in the Authority to Construct (ATC No. N-903-2-0). The following activities were <br /> conducted during the source tests, <br /> • Monitor and record system influent and effluent flow rate, <br /> • Collect influent and effluent air samples, <br /> • Monitor and record applied vacuum on the vapor extraction wells, and <br /> • Monitor and record system operating temperature. <br /> Additionally, a Photo Ionization detector (PID) was used to record volatile organic <br /> compounds (VOC) concentrations, influent and effluent to the SVE system to verify <br /> destruction of petroleum hydrocarbons. Influent and effluent samples were collected at <br /> sample ports before and after the catalytic oxidizer. Another influent sample was also <br /> collected upstream of the dilution valve to monitor the petroleum hydrocarbon concentrations <br /> from the extraction wells. A vacuum pump and iron lung were used to collect soil vapor <br /> samples into one-Iiter tedlar bags, which were forwarded to Alpha Analytical, a State Certified <br /> C:IProject FileslUSA Gasoline1065kCorrespondenceVMiddleton-Source Test.doc <br />