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'-- ` ' GRouN DWATER <br /> 01:1711 <br /> TECHNOLOGY, INC. 1401 Halyard Drive,Suite 144.West Sacramento,CA 95691.(916)372-4700 <br /> January 13, 1995 FAX(916)372-8781 <br /> Mr. Bob Vasquez <br /> The Southland Corporation <br /> 3146 Gold Camp Drive, #300 <br /> Rancho Cordova, California <br /> Subject: Fourth Quarter 1994 Monitoring and Sampling Report <br /> Southland Site No. 20304 <br /> 455 Grant Line Road <br /> Tracy, California <br /> Project No. 02070 0105 <br /> Dear Mr. Vasquez: <br /> This Fourth Quarter 1994 Monitoring and Sampling Report presents the results of monitoring and <br /> sampling activities performed by Groundwater Technology, Inc. at The Southland Corporation <br /> (Southland) Store No. 20304 located at 455 Grant Line Road in Tracy, California (Figures 1 and 2, <br /> Attachment 1) for October 1 through December 30, 1994- <br /> The activities during this reporting period included: <br /> Gauging ten groundwater monitoring wells and one groundwater extraction well <br /> (Figure 2) to measure the depth to water (DTW) and to check for the presence of <br /> separate-phase hydrocarbons (SP). <br /> ■ Collecting groundwater samples from ten groundwater monitoring wells. The <br /> samples were submitted to a California-certified laboratory and analyzed for <br /> benzene, toluene, ethylbenzene and xylenes (BTEX), and total petroleum <br /> hydrocarbons-as-gasoline (TPH-G) by Environmental Protection Agency (EPA) <br /> methods 8020/modified 8015, <br /> GROUNDWATER MONITORING DATA <br /> Groundwater monitoring was performed on December 23, 1994. Prior to monitoring, the well caps <br /> of each well were opened to allow the water level in each well to stabilize to atmospheric pressure. <br /> The DTW was measured to the nearest 0.01 foot from the top of the well casing using an ORS <br /> Environmental Equipment INTERFACE PROBE Well Monitoring System. <br /> 4094•M85.RPT(STHL-5) <br /> Offices throughout the t,S-.Canada and Overseas <br />