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coo? <br /> lsarker Environmental Services <br /> P.o. Box$067 <br /> Pittsburg,CA 94565 <br /> Project 226-01-01 (42 ) 5ee-7yaz <br /> = August b, 2002 <br /> Mr. Harlin Knowll <br /> Environmental Health Specialist <br /> San Joaquin County Environmental Health Division <br /> 304 East Weber Ave. <br /> Stockton, CA 95202 <br /> r <br /> Subject: Soil Sampling under Pumps and Piping at City of Lodi <br /> Maintenance Facility, 1331 South Ham Street,Lodi, California <br /> Dear Mr. Knowll <br /> This leiter documents the soil sampling under a gasoline pump and lines at the <br /> subject site. The sample was obtained at the request of.San Joaquin County. A <br /> work plan was forwarded July 30`x`2002 to the County describing the sampling <br /> procedures and laboratory analysis parameters. <br /> Sample Collection <br /> Soil sampling was done on August 1,2002 under the observation of Mr. Harlin <br /> M - Knowll from the San Joaquin County-Environmen tatHealth Division. <br /> Thesoil sample was obtained from underneath each of the eastern most former <br /> pump location using a backhoe (see the attached figure). The sample was <br /> obtained from a depth'af 6 feet BGS. A clean brass tube was hammered into the <br /> backhoe bucket until. full. Teflon tape and plastic caps were placed over the tube <br /> ends,.The tubes were then labeled and placed on ice for transport to the testing <br /> laboratory for certified,chemical analysis. No petroleum hydrocarbon odors <br /> were noted during sampling. A chain of custody form accompanied the sample <br /> to the lab. <br /> No groundwater was encountered to a depth of 6 feet BGS during sampling. The <br /> sampled soil was clayey sand. <br />