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twice with water prior to each sampling run. �I 6) Preserve the soil samples in the.lead-brass tube, seal with aluminum foil, cap, and store on ice pending transportation,to a state-certified laboratory. 7) Label and log soil samples on a chain of custody form. 8) Based on field , PID measurements select.a minim�m of 3 soil samples from boring B1 for analysis of total petroleum hydrocarbons(TPNH as gasoline) in accordance with EPA method 8015 and for purgeable aromatic hydr ucarbons (BTE&X) in accordance with EPA method 8020. Samples from B2 and B3 will be analyzed for TPH-g; TPH- d, BTE&X, oil and grease, chlorinated hydrocarbons, and ICRP metals (waste oil suite). 9) Monitor auger returns and soil sample duplicates for presence of volatile.organics using a photo-ionization detector. 10) Log auger returns.in accordance with the Unified;Soil Classification System. 11) Place soil cuttings on plastic sheeting and store on=site pending analytical results. 12) Steam-clean augers between borings to prevent cross contamination. 13) Backfill borings with neat cement. ' 14) Submit a written report of the investigation to PHwS/EHD. I� Optional procedures if contamination is discovered at depths of less than 30 feet: 15) Excavate the contaminated soil, using a backhoe.'Space restrictions limit the area that could be excavated to approximately 40 feet x 40 feet; the maximum volume of soil that could be removed would therefore be 1,800.cubic yards. 16) Stockpile the excavated soil on plastic sheeting, punding analytical results. 17 Collect discrete soil sam les from the stockpile at �a ratio of one per 25 cubic yards, p P using a metric soil sampler loaded with two brass tubes;. 18) Seal samples with aluminum foil, cap, and store-on ice -pending transportation to a state-certified laboratory. 19) Label and log soil samples on .a chain of custody form. G—I.gi.lAudi.Services,Ine. - Don'a B.Sgie WP/1-94,9M-S - 3