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' Coca-Cola Enterprises - West <br /> . USTEC Job No 90054 03 <br />' screen with a slot size of 0 010 inches and blank casing The wells were installed to depths of <br /> 46, 47 5, 48, and 67 5 feet Well construction details are presented on the strahgraphic logs in <br /> Appendix A The well construction permit is presented in Appendix B <br /> IFollowing installation of the slotted and blank PVC casing (Photograph No 3) the annulus of <br /> each well was packed with number 2./12 monterey silica sand to about 2 feet above the well <br />' screen (Photograph No 4) Following installation of the filter pack, a 2-foot bentonite seal was <br /> placed on top of the sand pack and hydrated with about 10 gallons of potable water The <br /> remaining annular space was filled with ready mix concrete to the surface Flush-mounted, 12- <br /> inch diameter well vaults and locking friction fit well caps were installed to provide surface <br /> protection (Photograph No 5) <br /> All downhole equipment was steam cleaned before and after use to prevent the possibility of <br />' cross-contamination Water generated during the decontamination process was stored on-site <br /> in DOT approved 17-H, 55-gallon capacity steel drums All water from the drilling, sampling, <br /> and decontamination process was removed from the site December 17, 1991 for recycling A <br /> copy of the transportation manifest is included in Appendix C <br /> 3 0 GROUNDWATER ELEVATION MEASUREMENT PROCEDURES AND RESULTS <br /> This section describes the groundwater elevation measurements and resulting data <br /> 31 GROUNDWATER ELEVATION MEASUREMENT PROCEDURES <br /> The groundwater monitoring activities were performed by USTEC personnel on November 21, <br /> 1991 The momtonng procedures measured the static groundwater elevation and sampled, the <br /> groundwater at each of six groundwater monitoring wells located at the site The locations are <br /> Ishown on Figure 2 <br /> 3 <br /> 11tiT <br /> I <br />