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i <br /> ACES FAX NO. 925-473-07849 Jul. 30 2002y10:05AM P2 <br /> FROM PARKER ENVIRONMENTAL S . <br /> Parker Environmental Services <br /> P,O.Box$067 <br /> Pittsburg CA 94,565 <br /> Project 226-01-01 <br /> 'h (925) 519-7782 <br /> 30 2002 <br /> J - <br /> Mr. Harlin Knowll <br /> Environmental Health Specialist p sl <br /> Sari Joaquin County Environmental Health Division <br /> 304 East Weber Ave. . <br /> Stockton, CA 95202 4 <br /> Subject: Work Pian:Soil Sampling under Pumps and Piping at City of ' <br /> Lodi Maintenance Facility,1331 South Ham Street,Lodi, <br /> California <br /> Dear Mr, KnOWll: <br /> This Work Plan describes the soil sampling and sample analysis proposed to <br /> complek? the site investigation after the removal of gasoline Pumps and lines at <br /> the subject site. This site was previously sampled on February 1,20002. Sample <br /> analysis results showed one sample (1 @ 2-2.5') with 31 ppb MTBE.The proposed <br /> ti sampling will obtain soil samples from-beneath the sample obtained in February, <br /> Sample Collection <br /> The soil samples will be obtained either.with abackhoe or a hand auger. if a <br /> backhoe is used, the sample will be collected from the lower front of the bucket <br /> near the teeth by hammering a six-inch brass tube in the soil. if the hand auger is <br /> used, a 20-pound slide hammer Zvi th a sarnpling shoe and a clears brass tube . <br /> insert will be used to obtain the sample..Expected sampling depth will.be a <br /> minimum of 8 feet SCS. Teflon tape and plastic caps are then placed over the ; <br /> tube ends. The tubes�a.re then labeled and placed on ice for transport to the <br /> testing laboratory for certified chernical analysis.A chain of custody fizrn will <br /> accompany the samples to the lab. <br />