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P'P A <br /> DEL- TECH Ge.technical'iSLi' is-fty" <br /> es t <br /> 52 <br /> Mike Infurna April 05, 1996 <br /> San Joaquin County Public Health Services 1 Environmentaljj Health Division <br /> 304 East Weber Ave. / 3rd Floor <br /> P.O. Box 398 <br /> Stockton, Calif. 95201-0388 <br /> RE: PUMPING, CONTAINMENT, SAMPLE ANALYSIS AND DISPOSAL OF PURGE <br /> WATER FROM DOMESTIC WELL. <br /> LOCATION: KING ISLAND TRAILER PARK, 122 W. ALDER ST., <br /> STOCKTON, CA. <br /> Mr. Infurna, <br /> The pumping, containment and disposal of the purge water fro!rn the pumping event on March 21, <br /> 1996, has been completed. Approximately 500 gallons of water was pumped from within the well <br /> li <br /> casing from a depth of approximately 16 vertical feet belowl1the surface. The recharge of water <br /> I' <br /> to the well was very quick and the total depth of the well is 177 feet deep. <br /> The pumping event was coordinated to determine the influence of Total Petroleum Hydrocarbons <br /> that were previously detected in the water, within the casing, of this now abandoned production <br /> well. During the pumping a monitoring well log was maintained and is attached with all of the <br /> parameters monitored. All of the water pumped was temporarily stored in poly containment <br /> drums and then manifested and pumped out by American Valley Environmental on the same day. <br /> Manifest # 93464773. <br /> As required, Ms. Margaret Lagario of the San Joaquin County Environmental Health Department <br /> was notified prior to and on the day of the pumping event, since you were out on vacation. <br /> Once the pumping was completed, a grab sample of the watdr was collected from the well. The <br /> sample was collected with a clean stainless steel bailer. Tw 0 V.O.A. Vials and one amber liter <br /> bottle were collected. The samples were labeled and stored i in a chilled ice chest containing ice. <br /> California Certified Laboratory, Sherwood Labs. #1400, completed the sample analysis. <br /> The certified analytical analysis attached, suggests that there is a low level of degraded gasoline <br /> within the well casing at 115 parts per billion Tph- gas. <br /> 10624 Olive Avenue, Oakdale, CA 95361 (209) 847-8757 Fax (209) 847-7744 <br />