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conversion of these borings to monitoring wells, well development, elevations survey, fluid level <br /> measurement, and groundwater sampling. <br /> All field activities will be conducted in accordance with the site specific Health and Safety Plan <br /> (Appendix I). The field investigation will be conducted under the supervision of a California <br /> Registered Geologist. <br /> A problem assessment report will be prepared according to RWQCB guidelines summarizing the <br /> findings of the investigation. The registered geologist will review and sign the problem <br /> assessment report. <br /> 3.1 Soil Borings <br /> Proposed soil boring locations will be in the vicinity of the former tank pit area. Proposed <br /> boring/well locations are shown on Figure 2. All borings will be advanced to groundwater using <br /> a drilling rig with 10-inch diameter continuous-flight, hollow-stem augers. <br /> `J Drill cuttings will be logged continuously for characterization of contamination and soil type by <br /> a geologist using the Unified Soil Classification System. Descriptions of soils encountered and <br /> monitoring well construction details will be recorded on boring/well logs and included in the <br /> assessment report. <br /> All borings will be sampled at 5-foot depth intervals using a split-spoon sampler with brass <br /> liners. The materials from one sample liner will be described and field screened with a <br /> photoionization detector (PID) for volatile organic content. A second liner will be sealed at each <br /> end with a Teflon sheet and plastic cap, secured with polyethylene tape, sealed in air-tight bags, <br /> and preserved on ice pending shipment to a state-certified laboratory. <br /> ` Between sampling attempts, all sampling equipment will be cleaned using a three-bucket wash <br /> system. In this system, the liners and samplers are scrubbed with a brush in a bucket of tap <br /> R121891.TJL 3 <br /> r <br />