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s � <br /> Blockbuster Videolyellow Submarine <br /> Phase 1I-Remed;;al Investiga+'ian Results <br /> ' Page 3 <br /> ntil <br /> The waste oil <br /> demolished.ine is aThe w stelso under hoil tank was remuilding and exploration <br /> ved and sp sedSof by Oscar <br /> structure is <br /> Ericson, as a hazardous waste. <br /> 1 The spans pile, consisting of approximately average yards� Qntaminated soil, is � is <br /> on site and covered with a Plastic tarp. onentratia� of contamination <br /> 44PPM and is primarily kerosene. <br /> 1 <br /> the sails on the site were found to e <br /> Due to the Phase I Site Assessment excavation, <br /> clays and silty clays. In the deep excavationjil <br /> ln rthwhardedense st comer <br /> of the property, the <br /> soils at a 22 foot depth were found to consstofvery <br /> y. <br /> q,0 SCOPE OF WORK <br /> Work')erformed, during this Phase included the installation of-three(3) four inch (4") <br /> wells. '0oth soil and ground water samples were taken (Appendices G and a ). The <br /> wells were surveyed and a ground water gradient map was produced (Appendix 1'~ and <br /> Figure 3}. The "spoils" pile from previous re-excavation activities on site was also fiNtD <br /> sampled to determine what disposal alternative was most appropriate(Appendix I). <br /> 5.0 SUMMARY <br /> Drilling and installation of the three (3) monitoring wells was begun on August 27, <br /> 1991,,and completed on September S, <br /> 1991. Drilling was performed by Pierson <br /> Drilling Company and borings were logged by WHF Geologist, Shirley Marshall <br /> (Appendix E). <br /> During installation of Well #3, some of the grout got past the Bentonite sMil and <br /> entered the well. We have no explanation of how this occurred. Consequently, the 1 <br /> foot screened interval from a 48 to a 60 foot depth. The <br /> grout filled 11 feet of the 20 <br /> well recharges slowly, but there is five feet (S') of water in the well. <br /> Soil samples were taken beginning five feet below known contamination in Wells #1 6� <br /> and #2. Well #3 soil samples were begun at 30 feet. All wells had samples taken every <br /> five feet {5') thereafter to the ground water interface. All samples were run on Wells <br /> #1 and #2, as previous contamination was known in those areas. Well #3 had only the <br /> i , <br /> - ground-water interface..sample_run,.._as no odors were detected during drilling and no <br /> contamination was suspected to be in that ar f the site. <br /> � <br />