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{ <br /> ► MICHAEL S. BONK�wWSKI CONSULTING ENGINLwKING GEOLOGIST <br /> . 3 November 1992 <br /> Mr. Michael lnfurna <br /> RECEIVED <br /> Public Health Services Nov 502 <br /> San Joaquin County - <br /> P.O. Box 2009 ENvRf / TE � <br /> Stockton, California 95201 11EALTH <br /> SUBJECT:• Workplan Amendment and Well Permit Request for California Fuels <br /> Cardlock Facility at 2402' Pacific Avenue, Stockton, California <br /> ' Mr. lnf urna: <br /> We arc in receipt of San Joaquin County Public Health Services letter to Pacific Pride Commercial <br /> Fueling regarding amendments to a proposed work plan to conduct a phase i site investigation <br /> (attached). After review of your-requested changes, and our telephone conversation of 12 October <br /> 1992, we agreed to the following changes: <br /> 1) Three wells will be installed at the loc4dons shown on Figure i (attached) <br /> 2) The wells will be sampled every five feet for lithology,and 10 feet for chemical analyses <br /> 3) The samples will be chemically tested for TPH as gasoline and diesel, BTEX, and total <br /> lead. <br /> 4) Samples which contain high concentrations of TPH as gasoline will be further analyzed <br /> for EDB. <br /> 5) Samples which contain total lead at concentrations which exceed 13 ppm will be <br /> analyzed for soluble lead by either EPA method 7421 or AA/6010. <br /> 6) Measurements of pH, electroconductivity, and water temperature will be taken just atter <br /> purging dad prior to sampling. <br /> California Fuels notified us of a delay in the stark-up of this work until June 1, 1992 because of <br /> financial restraints (attached). They are seeking relief from either their insurance carrier or the state <br /> cleanup fund prior to,conducting this work. We will file a permit and the fee to proceed with this <br /> work after further direction from San Joaquin County and California Fuels in this matter. <br /> -- Sincerely, - - <br /> CERTIFIEDE EER G G L04GISTS <br /> Michael S. Bonkowski, RG CF_G 1329 - <br /> Hazardous Materials Management and Geotechnical Services <br /> cc: Mr. David Atwater, California.Fuels <br /> P.O.Box 1656 ` <br /> Lafayette California 94549 <br /> TEL(510)283-9642 <br /> FAx[510]284-3552 <br />