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i <br /> CRO <br /> n i <br /> Fkn1 Qtmnsr 12*5 Grourdwebr 11onhoch g R•pad <br /> 2448 W—Kettkman Lane,Ladi,California <br /> GROUNDWATER SAMPLING AND ANALYSES <br /> Groundwater samples were collected from four of the wells. All samples were analyzed for <br /> concentrations of: <br /> • TPH, as gasoline, by modified EPA Method 8015. <br /> • BTEX by EPA Method 602. <br /> Analytical results from March 1992 to date are summarized in Table 2. Historic analytical data <br /> are presented as an Attachment. The laboratory report and chain-of-custody form for the current <br /> sampling event are attached. TPH and benzene concentrations remain nondetectable in the four <br /> wells sampled this event, MW-24, MW-34, MW-35 and MW-36. <br /> A copy of this quarterly monitoring report should be forwarded to the following parties: <br /> Mr. Harlan Knoll <br /> Environmental Health Division <br /> San Joaquin Public Health Services <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> Mr. James B. Maughan <br /> Central Valley Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> 9548.0021.6W1.4MR -2- <br />