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No information was available from the DWR regarding the Site's abandoned facility well, <br /> ' observed by the PHS/EHD on February 26, 1992. Details regarding construction of the well <br /> are currently being investigated <br /> 1 3.0 METHODS AND PROCEDURES <br /> 3.1 Drilling Activities <br /> On February 24, and 27, 1992, RESNA Industries advanced a total of three soil borings for the <br /> ' purpose of assessing subsurface conditions underlying the Site The boring/well locations are <br /> shown on Figure 2 All borings were advanced to a depth of approximately 30 feet below grade <br /> using a drilling ng with 8-inch diameter continuous-flight, hollow-stem augers Groundwater <br /> was first encountered at approximately 15 to 16 feet below grade in each boring <br /> Drill cuttings 1 n <br /> t gs w r e e logged continuously for characterization of contamination and soil type by <br /> a geologist employing the Unified Soil Classification System Descriptions of soils encountered <br /> and monitoring well construction details were recorded on boring/well logs and are included as <br /> Appendix II <br /> All borings were sampled at 5-foot depth intervals using a split-spoon sampler with brass liners <br /> The materials from one sample liner were described and field screened with a photoionization <br /> detector {PID} for volatile organic content A second liner was sealed at each end with a Teflon <br /> sheet and plastic cap, secured with polyethylene tape, sealed in air-tight bags, and preserved on <br /> ' ice pending shipment to a state-certified laboratory <br /> ' Between sampling attempts, all sampling equipment was 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 /> water and detergent, rinsed in a second bucket of tap water, and given a final rinse in a bucket <br /> of distilled water <br /> At least two soil samples from each boring were submitted for laboratory analysis Samples <br /> were selected based upon field PID readings and/or changes in lithology <br /> ' R-61292 TL 3 <br />