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B \WOA LAN DOC <br /> hole is performed by lowering a hand sampler/driver that contains <br /> one 2" x 6" sterile brass sleeve and driving into the undisturbed <br /> soil after the versadrili has been removed The sampling will <br /> occure in 5 foot intervals starting at the 20 foot depth from <br /> surface (5 feet below the excavation surface). The Vereadrilled <br /> hole(s) can be utilized for the placement of vapor efficient <br /> extraction wells due to the large surface area the boring <br /> Produces, see Figures 6 <br /> WlreICAL AND LATERAL EXTWU ON SITE AVAY FROM THE HKC&YATION <br /> The lateral and vertical extent of the contamination associated <br /> with the underground tanks and product dispensing system will be <br /> assessed using a truck mounted MOBILE DRILL B-40. The drilling <br /> will utlize 8" hollow stem augers; sample intervals will be every <br /> 5 feet using a California split spoon Sampling will commence at <br /> the 15 foot depth around the tank excavation and 5 foot depth <br /> around the product dispensing areas, see Figure 6. <br /> PRODUCT LIMB TWWCHBS <br /> To economically determine the vertical extern of petroleum <br /> contamination associated with the product lines, a 4" diameter <br /> hand auger with sampler and driver will be utilized, see Figure 6 <br /> The holes will be hand angered in five foot intervals, the auger <br /> then will be withdrawn and a sample barrel that contains one 2"x6" <br /> sterile brass sleeve will be placed at the base of the hole and <br /> hand driven to obtain a sleeved sample for certified laboratory <br /> analysis. These sample will be preserved, chain of custody hand <br /> delivered and analyzed as described earlier in the INTRODUCTION. <br /> SAMPLES <br /> All samples will be collected. labeled preserved and chain of <br /> custody delivered using EPA and LUST protocol. Soil samples will <br /> be screened, using a PID analyzer calibrated to a 25 ppm gasoline <br /> vapor standard, prior to sealing the sample. Soil samples will be <br /> classified using the ASTM D 2488-84 (the Unified Soil <br /> Classification System) <br /> The soil samples recovered from the borings will be analyzed using <br /> EPA methods 5030 for extraction and 8015-TPH and 8020-BTEX <br /> HEALTH AND SAFETY <br /> The borings will be continuously monitored v ch a LEL/02 meter and <br /> the site rersodically monitored with a hang held PID meter. All <br /> personnel involved with this site have a current OSHA-SARA <br /> Certificate of Training, see Appendix D-Health and Safety Plan <br /> The site. until found otherwise, is being treated as class D <br /> i <br />