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Mr Chuck Cannel Project 0805-111 01 <br /> September 9, 1994 <br />' Page 2 <br />' Groundwater Samples from each well were analyzed for total petroleum hydrocarbons as <br /> gasoline (TPHG) and benzene toluene ethylbenzene, and total xylene isomer~ (BTEX) <br /> using Environmental Protection Agency Methods 5030/8020 and Modified 8015 These <br />' samples were analyzed at GTEL Environmental Laboratories, Inc , in Concord, California <br /> (Hazardous Waste Testing Laboratory Certificate E1075) The results of these analyses <br /> are summarized in Table l Copies of the laboratory analysts reports are presented in <br />' Attachment A Results of analyses indicated TPHG and BTEX concentrations were below <br /> laboratory detection hi-nits in groundwater samples collected from wells MWA through <br /> MW-4 <br />' WORK IN PROGRESS <br />' At ARCO's request, groundwater monitoring wells will be monitored in December 1994, <br /> and groundwater samples will be collected in July 1995 The results of December <br /> groundwater monitoring and the July 1995 sampling event will be included in the 1995 <br />' annual status report <br /> CONCLUSIONS <br /> Results of groundwater analyses from the past five quarterly monitoring events indicate <br />' dissolved hydrocarbons are not present to groundwater beneath the Site <br /> DOCUMENT DISTRIBUTION <br />' We recommend that copies of this report be forwarded to <br />' Mr Mike Inturna <br /> San Joaquin County Public, Health Services <br /> 445 North San Joaquin Street <br />' Stockton, California 95201 <br /> Ms Elizabeth Thayer <br />' California Regional Water Quality Control Boaid <br /> Central Valley Regional <br /> 3443 Routter Road <br />' Sacramento California 95827-3008 <br /> 1AC1pj(N)S05�\I18041110 1111044 m1m S <br />