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2-6 SB-8 and SB-9, between depths of 16 to 18 ft-bgs and analyzed for the same constituents (Table 1) Soil samples collected from Borings SB-14, MW-4, and MW-5 were also analyzed for Target Compound List (TCL) VOCs These analyses were conducted because an individual at the TCS, Inc facility indicated that a shallow trench may have been used in the past for disposal of some site-related materials There is no physical or documented evidence that a trench existed nor that there was on-site disposal in the area 2 3 2 Former Brme Discharge Area Prior to the dismantling of the Brine Tank in 1982, brine solutions were reportedly dis- charged to the ground surface on two occasions Two borings (SB-4 and SB-5) were ad- vanced in the area where the brme solution is reported to have been discharged in the past (Figure 3) Only soil samples were collected from these borings at depth intervals of 0 to 2 ft-bgs, 8 to 10 ft-bgs, and 16 to 18 ft-bgs in each boring These soil samples were analyzed for Resource Conservation and Recovery Act (RCRA) metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver), hexavalent chromium, and ammoma (Table 1) ' 2 3 3 Former Septic System Leachfield Two borings (SB-6 and SB-7) were advanced in the former septic system leachfield (Figure 3) Soil samples were collected from depths of 8 to 10 ft-bgs in each boring for analyses of TPH-purgeable fuels as diesel, TCL VOCs, hexavalent chromium, chromium, and ammonia (Table 1) 2 4 MONITORING WELL_CONSTRUCTION Six ground water momtoring wells were installed during completion of the initial and supple- mental portions of the Phase H Investigation Monitoring Wells MW-1, MW-2, and MW-3 were constructed in the soil borings that had been identified as SB-1, SB-7, and SB-4, re- spectively Monitoring Wells MW-4, MW-5, and MW-6 were constricted in borings that 29023 I ' "REALISTIC SOLUTIONS FOR HAZARDOUS WAS rE PROBLEMS'