Laserfiche WebLink
*40W law <br /> 3) Drill three borings at the site using a truck-mounted drill rig equipped with <br /> continuous-flight, 8-inch diameter hollow-stem augers. The borings will be drilled to <br /> depths of approximately 20 feet. The proposed boring locations are depicted on <br /> Figure 2. <br /> 4) Obtain soil samples at five-foot intervals using a split-tube sampler loaded with three <br /> pre-cleaned brass sleeves. <br /> 5) Preserve soil in the lead brass sleeve by covering both ends with aluminum foil or <br /> teflon sheets, capping, and sealing with tape. <br /> 6) Label and log soil samples on a chain-of-custody form. <br /> 7) Store the samples under ice and transport the samples in a chilled container to a <br /> State certified laboratory for analysis. <br /> 8) Log auger returns in accordance with the Unified Soil Classification System. <br /> 9) Monitor auger returns and soil sample duplicates for the presence of volatile organics <br /> using a photo-ionization detector (PID) pre-calibrated to isobutylene. <br /> 10) Decontaminate sampling equipment in an alconox solution and rinse twice with water <br /> prior to each sampling run. <br /> 11) Steam-clean auger flights after drilling. <br /> 12) Add soil cuttings to existing soil stockpile and store on-site pending analytical results. <br /> 13) Complete the borings as two-inch diameter monitoring wells in accordance with the <br /> well design in Figure 3. <br /> 14) Survey the top of each well casing to determine the elevation relative to existing <br /> wells. <br /> 15) No sooner than 48 hours after installation, measure to the nearest 0.01 foot, the <br /> static water level in the new wells. <br /> 16) Using a bailer or submersible pump, surge and purge all wells. At least three well <br /> volumes of water will be removed from each well to stabilize temperature, pH, and <br /> conductivity; stabilization parameters will be measured at one-gallon intervals. <br /> Samples will be collected using disposable bailers; samples will be collected in 40-m1 <br /> VOA vials. <br /> 0a&.#i.l Add Service.,W. <br /> SG95_01.10654ZR WEIDON CHURCH"W W <br /> 4 <br />