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28 January 1993 <br /> (GeoAudit CV43F1-1. 35) <br /> Page 3 of 5 <br /> 1 <br /> WELL COMPLETION <br />' The boring was completed as groundwater monitoring well by the <br /> installation of 0. 020 screen PVC liner from 80 to 110 feet. The <br />' filter pack (Monterey sand #3) was placed from 77 to 110 feet. <br /> Bentonite pellets were used from 74 to 77 feet and the well was <br /> backfilled to the surface with Portland Cement. <br />' GROUNDWATER MONITORING AND SAMPLING <br /> The depth to groundwater in the well was measured on 8 January <br /> 1993 . The depth was measured to the nearest . 01 foot with a <br /> Solinist water level meter. Stabilization data were collected using <br /> Orion pH, conductivity and temperature meters. <br /> After measurement of the depth, a Grundfos 2" submersible pump was <br /> used to surge and purge the well, and approximately 55 gallons of <br /> water were removed from the well to stabilize temperature, pH and <br /> conductivity before collection of a water sample. The water was <br /> stored in a 55-gallon drum on-site. Stabilization data are <br /> summarized in Table 1. <br /> TABLE 1 <br /> GROUNDWATER SAMPLE STABILIZATION PARAMETERS <br /> 24 November 1992 <br /> WELL NO. <br /> GALLONS pH TEMP. (C) CONDUCT. <br /> MW-1 0 6.9 16. 0 722 <br /> 11 7. 1 19. 0 1135 <br /> 22 7 . 2 18. 5 1287 <br /> 33 7 .2 19 . 3 1274 <br /> 44 7 .2 19. 2 1263 <br /> 55 7. 2 19. 0 1256 <br /> I <br /> A water sample was collected from the well using a teflon bailer. <br /> The sample was collected in two 40-m1 EPA vials. After labeling and <br /> logging, the samples were stored on ice pending transmission to <br /> WEST Laboratories. The water sample was analyzed for TPH as <br /> gasoline, BTE&X and halogenated solvents in accordance with EPA <br /> methods 8015, 602 and 601, respectively. <br />