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' 20 September 2000 <br /> AGE-NC Project No 97-0333 <br /> Page 3 of 11 <br /> ' moisture content by ASTM Methods D5084, D2434, D854 and D2974 <br /> Two soil samples (MW-2 at 20 feet bsg and MW-4 at 20 feet bsg) were submitted to A Keith <br /> Kaufman for microbial enumeration and physicochemical analysis to assess the feasibility of <br /> bioremediation at the site <br /> 2 1 2 Equipment Decontamination <br /> ' The hollow stem augers were steam cleaned prior to each bore hole advancement Sampling tools <br /> and brass sleeves used for sample collection were thoroughly washed with a solution of Alconox, <br /> and were thoroughly rinsed with clean tap water prior to each sampling run Following drilling <br /> ' activities, nnseate generated from decontaminating the equipment was placed in properly labeled <br /> D Q T -approved model 17H 55-gallon drums and was stored on-site in an area lacking public <br /> access <br /> lie 2 1 3 Soil Boring Logs <br /> Dunng drilling activities, soil sample duplicates were monitored for the presence of organic vapor <br /> ' using an organic vapor meter equipped with a photo-ionization detector (PID Thermo <br /> Environmental 580A, 10 0 eV, calibrated to isobutylene) and were visually described on boring logs <br /> in accordance with the Unified Soil Classification System (USCS) Boring logs are Included as <br /> ' Appendix A General lithology beneath the site is depicted in cross sectional views A - A ' and B - <br /> R' on Figures 3 and 4, respectively <br /> ' 2 1 4 Monitoring Well Completion <br /> ' Soil borings MW-1, MW-2, MW-3, MW-4 and MW-5 were single-completed as ground water <br /> monitonng wells utilizing schedule 40, 2-inch diameter blank polyvinylchloride (PVC) well casing <br /> and perforated, 2-inch diameter PVC well casing (0 020-inch slot) <br /> ' Each well was Installed by placing a PVC well casing assembly through the hollow stem of the <br /> augers to the total depth of the boring The augers were incrementally raised as No 2/12 Lonestai <br /> ' Lapis Luster sand (filter pack) was slowly poured down the annulus between the well casing and the. <br /> inner wall of the hollow stem auger The filter pack was placed adjacent to the screened casing 1"rorr <br /> lhL bottcrn of the boniig to a point approximately two feet above the top of the screen, following <br /> iltLi park placeinuit, a sulgL 0luck vids inscrtud into the well irasttig and Mas altcrnateiy raised ancI <br /> ' 1d4unc ed(,uif nv ii un�Ezcnt iE Ing <br />