ARCHIVED REPORTS XR0009674 - Laserfiche WebLink

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mounted, continuous-flight, 8-inch diameter hollow-stem augers. The estimated boring locations are depicted on Figure 2 . 3) Complete pilot borings as 2-inch groundwater monitoring wells using the well design depicted in Figure 3 . 4) Log auger returns in accordance with the Unified Soil Classification System. 5) Obtain soil samples at five foot intervals using a split-tube sampler loaded with three pre-cleaned brass tubes. 6) Preserve soil sample in the middle brass tube by covering both ends with aluminum foil, capping, and sealing with tape. 7) Label and log soil samples on a chain-of-custody form. 8) Store the samples under ice and transport in a chilled container to a state certified laboratory for analysis. 9) Monitor auger returns and soil sample duplicates for the presence of volatile organics using a photo-ionization . detector (PID) . lo) Decontaminate sampling equipment in a tri-sodium phosphate solution (TSP) and rinse twice with water prior to each sampling run. 11) Steam-clean auger flights after drilling. I 12) Contain soil cuttings in 55-gallon DOT drums and store on-site pending analytical results. 13) No sooner than 48 hours after installation, measure to the nearest 0. 01 foot, the static water level in the wells. 14) Using a pump, surge and purge the wells. Approximately 3 to 5 well volumes of water will be removed from each well to stabilize temperature, pH and conductivity. After the wells have stabilized, a single water sample will be collected from each well using a new, clean disposable bailer. 15) Contain purged water in 55 gallon DOT drums and store on-site pending analytical results. 16) Store samples under ice pending delivery to a state-certified laboratory. 17) Analyze water and selected soil samples for Total Petroleum hydrocarbons (TPH-gasoline & TPH-diesel) in accordance with EPA method 8015 and for aromatic hydrocarbons (BTE&X) in 3