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21 March 1997 <br /> AGE-NC Project No 95-0173 <br /> Page _5 of 8 <br /> • Prepare a Site Health and Safety PIan in accordance with the Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities. <br /> Soil boring locations will be marked at least 48 hours in advance for an Underground Service <br /> Alert (USA) check of underground utilities or pipes <br /> Advance eight (8) soil borings at the site Five of the borings will be advanced to depths of <br /> approximately 50 feet and completed as 2-inch diameter ground water monitoring wells, one <br /> boring will be advanced to a depth of approximately 45 feet and completed as an IAS well, <br /> and two borings will be advanced to depths of approximately 40 feet and dual-completed as <br /> soil vapor extraction wells All borings will be advanced using a truck-mounted drill rig <br /> equipped with 8-inch or I0-inch diameter hollow-stem augers Proposed boring locations are <br /> depicted on Figure 2 <br /> • Decontaminate all sampling equipment in an alconox solution and rinse twice with water prior <br /> to each sampling run Steam-clean auger flights before advancement of each boring <br /> • Obtain soil samples at 5-foot intervals beginning at IS feet bsg Samples will be collected <br /> using a split-tube sampler loaded with three pre-cleaned brass sleeves <br /> • • Preserve soil samples in the second brass sleeve by covering both ends with Teflon sheets, <br /> capping, and sealing with tape Each sample will be labeled with the following boring <br /> location, depth, time, date and sampler's initials <br /> Monitor soil sample duplicates for the presence ofvolatil,3 organics using a photo-ionization <br /> detector (PID) pre-calibrated to isobutylene <br /> Log soil sample duplicates in accordance with the Unified Soil Classification System <br /> • Store the samples under ice in a ice chest and transport under chain of custody protocol to <br /> a State certified laboratory for analysis - - <br /> • Selected soil samples will be analyzed for TPH-g, TPH-d, BTE&X and MTBE in accordance <br /> with EPA methods 8015m and 8020/602 respectively Selected soil samples will be analyzed <br /> for permeability, porosity, soil moisture and percent organic content, as well as <br /> physicochemical analysis and microbiological enumeration to determine existing bacteria <br /> populations Prior to laboratory submittal, the PHS-EHD will be given an opportunity to <br /> reN,,cvv, samples selected fOr analysis <br /> • Cuttings generated during drilling activities will be placed on plastic sheeting, while rinseate <br /> generated during dnlhng activities will be contamenzed in properly labeled D O T model 17H <br /> 55-gallon drums, and stored on-site in an area inaccessible to the general public Disposal <br /> alternatives will be evaluated based on results of laboratory analysis <br />