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1 <br /> These wells were completed with 20 feet of 2-inch ID 0.020 slot PVC screen Lonestar I/C <br /> sand was used as a sand pack. Two feet of bentonite chips were placed on top of the sand pack <br /> and hydrated. A cement/bentonite grout was used to seal the annular space in each borehole, <br /> and the wells were completed with flush-mounted Christy boxes. Well construction diagrams <br /> are presented in Appendix B Each well was equipped with a locking cap <br />' Lithologic logging was completed from cuttings, examination of the material at the ends of the <br /> tubes, material in the shoe of the split spoon and soil extruded from unused sample tubes <br />' Lithologic logs of the soil borings are presented in Appendix B <br /> All augers, bits, tool spaces and tools were steam cleaned to prevent cross contamination Split <br />' spoon samplers and sample tubes were decontaminated using an Alconox and water wash, <br /> potable water nnse and distilled water rinse Decontamination water was containerized in <br /> 55-gallon steel drums All cuttings were also placed in 55-gallon drums. All drums were <br />' labeled and left on site. <br /> The wells were developed on August 11, 1994 by bailing Approximately five well volumes <br />' were removed from each well All purge water was containerized, labelled and left at the site <br /> pending analysis. <br /> The monitor wells were sampled approximately one week after well development On August <br />' 19> P P 1994 total depth and depth to water were measured in each well and used to calculate three <br /> well volumes Three well volumes were purged from each monitor well by bailing prior to <br /> sampling Groundwater samples were transferred from the bailer into laboratory supplied <br /> sample containers The sample containers were labeled, sealed in individual ziplock bags and <br />' placed on ice in a cooler. Groundwater samples were submitted for analysis of BTEX and TPH- <br /> D. <br />' AlI samples were delivered with chain-of-custody documentation to WESTON's analytical <br /> laboratory in Stockton, California. <br />' At the conclusion of the field program, a licensed California surveyor surveyed the top of casing <br /> elevation of each well so water level measurements could be tied to MSL elevation <br />' All on-site work was performed in accordance with WESTON's site specific health and safety <br /> plan (HASP) The field work was performed in level D personal protection A daily site health <br /> and safety briefing was conducted in accordance with the HASP <br /> 1 <br /> 1 <br />' STKIRPMWCMVCQI SCK <br />