Laserfiche WebLink
1 <br />' 04 August 2000 <br /> • AGE-NC Project No 97-0300 <br />' Page 3 of 10 <br />' One soil sample (MW-3 at 50 feet bsg) were submitted to A Keith Kaufman for microbial <br /> enumeration and physicochemical analysis to determine feasibility of bioremediation at the site <br />' Three soil samples (MW-1 at 50 feet bsg, MW-2 at 20 feet bsg and MW-2 at 35 feet bsg) were <br /> submitted to Cooper Testing Laboratory for testing of permeability, porosity, total organic content, <br /> bulk density and moisture by ASTM Methods D5084 and D2974 <br /> I <br /> 2 12 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 O T -approved model 17H 55-gallon drums and was stored on-site in an area lacking public <br />' access <br /> r� 213 Logging <br /> During 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 Soli Classification System (USCS) Boring logs are Included as <br /> Appendix A General lithology beneath the site is depicted in cross sectional view on Figures 3 and <br /> 4 <br /> 2 14 Monitoring Well Completion <br /> Soil borings MW-1, MW-2 and MW-3 were single-completed as ground water monitoring wells <br /> utilizing schedule 40, 2-Inch diameter blank polyvinylchloride (PVC) well casing and perforated, <br /> 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 Lonestar <br /> Lapis Luster sand(filter pack)was slowly poured down the annulus between the well casing and the <br /> I inner wall of the hollow stem auger The filter pack was placed adjacent to the screened casing from <br /> the bottom of the boring to a point approximately two feet above the top of the screen, following <br /> i <br /> Advanced GeoEnvi run mental,Inc <br /> I <br />