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r <br /> California Regional Water Quality Control Board <br /> r Central Valley Region <br /> FIL <br /> in <br /> ;11 Steven T Butler, Chair Gray Davis <br /> Secrelaryfor Sacramento Main Office Governor <br /> nvironmenrnf Internet Address http//www swrcb ca gov/rwgcb5 <br /> Protection 3443 Routter Road,Suite A Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> r <br /> 25 September 2000 <br /> r <br /> Durhim All Juban Nagi Saleh-Ali Mohamed & Huda Gubary <br /> r667 O'Farrell Street #10 PO Box 1322 25 Poncetta Drive #201 <br /> San Francisco, CA 94109 Riverbank, CA 95367 Daly City, CA 94015 <br /> rAPPROVAL FOR FEASIBILITY TESTING <br /> RANCH MARKET, 23569 SOUTHSANTA FE ROAD, RIVERBANK, SAN JOA QUIN COUNTY <br /> r I reviewedour 13 September 2000 Work Plan.for Well Installation and Feasibility Testing (Workplan) <br /> Y p <br /> prepared by Secor International Incorporated (Secor) <br /> r h Workplan, Secor proposes to install one airsparge AS well to 45 feet and six soil <br /> As presented in the p , S p p ( ) , <br /> r aapor extraction (SVE) wells to 30 feet, and conduct a two-day SVE/AS feasibility test at the site <br /> Ewring feasibility testing, Secor will monitor and record depth to water and dissolved oxygen levels in <br /> monitoring wells MW-1 through MW-4, and flowrate and vacuum/pressure at the AS and SVE wells <br /> r Extracted vapors will be monitored with a flame ionization detector, and burned in a thermal oxidizer <br /> prior to discharge to the atmosphere The results of this testing will be used to prepare the Problem <br /> Assessment Report as required in my 18 August 2000 letter <br /> rAll reports are to be submitted to the San Joaquin County Environmental Health Division and the <br /> Regional Board Contact Mr Mike Infurna (County) at (209) 468-3454 and me at least two business <br /> r days prior to any site work to schedule a field inspection appointment If you have any questions or <br /> comments, please call me at (916) 255-3115 <br /> Marty Hartzell <br />' Associate Engineering Geologist <br /> cc Ms Wennilyn Fua, UST Cleanup Fund, SWRCB, Sacramento <br /> Mr Mike Infurna, San Joaquin County Environmental Health Division, Stockton <br /> Mr Jaff Auchterlonie, Secor International Incorporated, Sacramento <br /> r <br /> SEP 2 9 ?nno u <br /> California Environmental Protection Agency <br /> I Qa Recycled Paper <br />