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approximately 35 feet from MW-1 (see Figure 2 - Site Plan) . <br /> Halogenated hydrocarbons and benzene were detected in the water <br /> sample from this well in January 1993 . <br /> 3 .0 PROCEDURES <br /> 3.1 Depth to Groundwater <br /> The depth to groundwater in MW-2 was measured on April 8 , 1993 to <br /> the nearest 0. 01 foot with a Solinist water level meter. After <br /> measurement of the depth, a 2-inch Grundfos submersible pump was <br /> used to surge and purge the well. Approximately 48 gallons of water <br /> (3 well volumes) were removed from the well to stabilize <br /> temperature, pH and conductivity before collection of a water <br /> sample. Stabilization data were collected using Orion pH, <br /> r conductivity and temperature meters. The water was stored in a 55- <br /> gallon drum on-site. Stabilization data are summarized in Table 1. <br /> The water sample was collected from the well using a teflon bailer. <br /> The sample was collected in six 40-m1 EPA vials. A water sample was <br /> also collected from the domestic well on the site (see Figure 2) . <br /> This sample was collected from the sampling port on the domestic <br /> well. After labeling and logging, both samples were stored on ice, <br /> and transmitted to FGL Laboratories at the direction of the client. <br /> 3.2 Laboratory Analysis <br /> tThe water samples were submitted for analysis of TPH as gasoline, <br /> volatile aromatic compounds (BTE&X) , and halogenated organic <br /> compounds (HVOC's) 1n accordance with EPA methods 8015, 602 , and <br /> 601, respectively. Additionally, a confirmatory sample was <br /> collected from the domestic well and analyzed for HVOC' s on May 4 , <br /> 1993 . The sample was analyzed on a 24-hour turnaround at WEST <br /> Laboratories in Davis, California. <br /> 4. 0 FINDINGS <br /> 4. 1 Monitoring Well MW-2 <br /> The depth to groundwater in MW-2 on April 8 , 1993 was 83 . 58 feet. <br /> This is approximately 8 feet shallower than in January, and follows <br /> the pattern of rising water levels seen elsewhere in the county <br /> following heavy winter precipitation, No hydrocarbon odor was <br /> noticed in the sample. <br /> I Benzene was detected in the sample from MW-2 at 8 . 5 µg/L (ppb) . No <br /> TPH, ethylbenzene, toluene or xylenes were detected in the sample. <br /> Four HVOC compounds were detected in the sample from MW-2 at levels <br /> up to 52 ppb (trichloroethylene) . The laboratory results are <br /> summarized in Tables 1 and 2 . The laboratory report and chain of <br /> I 2 <br />