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0 0 <br /> RNC ENVIRONMENTAL,LLC <br /> Site Assessment,Regulatory Compliance and Permitting Assistance <br /> 9746 Parktree Way,Elk Grove,CA 95624 <br /> 916.714.3073 • fax 916.290.0106 <br /> February 27,2005 <br /> RECE�v o <br /> RNC Project Number:41205A <br /> fviki 3 ?005 <br /> Mr. Harlin Knoll ENVIRONMENT HEALTH <br /> San Joaquin County Environmental Health Department PERMIT/SERVICES <br /> 304 East Weber Avenue,3'Floor <br /> Stockton,California 95202 <br /> Subject: Scope of Work <br /> Confirmatory Soil Sampling <br /> Schmidt's Grinding and Manufacturing <br /> 1220 East Pine Street <br /> Lodi,San Joaquin County,California <br /> Dear Mr. Knoll: <br /> In accordance with our recent conversations regarding this site,RNC Environmental,LLC(RNC) <br /> is submitting for your approval the following scope of work. The purpose of this sampling <br /> program is to obtain confirmatory soil samples in order to complete the UST closure at the subject <br /> property. We would refer you to the case file maintained by your agency for the site history and <br /> salient details regarding the UST abandonment. It should be noted that interviews with the tank <br /> owner confirm that the tank was only filled one time,and the contents were"regular gasoline". <br /> It is proposed to collect two (2) soil samples at a depth of two feet(2) beneath the bottom of the <br /> abandoned-in-place UST. These samples will be collected using"slant drilling" techniques due <br /> to the fact that the UST in question is located beneath an existing metal frame structure. All <br /> environmental drilling protocols will be used as they apply to this situation. The auger cuttings <br /> will be used to backfill the boreholes,presupposing that there is no olfactory or visual indications <br /> of contamination. <br /> The soil samples will be contained in clean brass or stainless steel tubes driven into undisturbed <br /> soil at the specified sample depth. The tubes will be recovered from the boring,sealed with plastic <br /> end caps,labeled,and immediately placed into a chilled ice chest. The samples will be transported <br /> to a State of California approved analytical laboratory under chain of custody within twenty-four <br /> hours (24 Hrs.) after they are collected. <br /> The samples will be analyzed for the constituents specified for"Gasoline'in the"TRI-REGIONAL <br /> BOARD STAFF RECOMMENDATIONS FOR PRELIMINARY INVESTIGATION AND <br /> EVALUATION OF UNDERGROUND TANK SITES' (CVRWQCB and others,10 August, 1990). <br /> The samples will be analyzed for the following: <br /> • Total Petroleum Hydrocarbons as Gasoline,BTEX,and MTBE by U.S.E.P.A. <br /> test method 8015Mod. / 8020Mod. <br /> 0 Total Lead by U.S.E.P.A. test method 200.7/6010 <br />