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5. i • January 19, 1983 Project 116-1.3 - 2 - Industrial wastes consisting of wet-solid sludges from FMC Corporation were accepted for disposal in the Group 1 Trench Landfill Area and were placed in Trench #3. Trench #3 was filled and covered during the 4th quarter of 1982. Additional cover material was being placed, compacted and graded over all Group 1 Trenches when we were forced by heavy rain to stop work. Following completion of Trench #3, we accepted approximately 5 loads of additional FMC waste. This material was stored in a bermed enclosure near the north end of Group 1 Trench #2. Further shipments of FMC waste were not accepted following receipt of your letter of 28, December, 1982. Evaporation Ponds #1, #2 and #3 were cleaned during the 3rd calendar quarter, 1982. Soil samples were subsequently collected both by Dwight Baier (Baier Agronomy) and by BETA ASSOCIATES. The results of chemical analyses on these samples were completed in November, 1982. We are currently working with Mr. Dennis Wescott of your staff on the interpretation of these analytical results. A complete report detailing the results of the field and laboratory investigation will be forwarded to your office when the interpretive work has been completed. Subsequent to cleaning and testing of the evaporation ponds listed above, new pond liners were placed to a thickness of 3.0 feet, compacted to 90% of maximum density at optimum moisture +2% and tested to determine permeability. A summary of the test results are attached to this report. Since there are still unanswered questions regarding chloride ion concentrations in the soil, we discontinued accepting brine waste from gas wells. Drilling mud waste however, is being accepted in Evaporation Pond #3. Table 2 below provides volume data on Group 1 wastes (FMC) and drilling mud waste for the 4th quarter, 1982. TABLE 2 - GROUP 1 WASTE, DRILLING MUD, BRINE F14C Drilling Mud Brine Month . (cu.yds. ) (Bbls. ) (Bbls. ) October 1982 1260 1800 2523 November 1982 1240 2550 -0- December 1982 200 6492 -0- TOTALS 2,700 10,842 2,523 Note: 1 Bbl. = 42 gallons ccordance with the Revised Monitoring and Reporting Program dated 22, December, 1982, we submit the. analysis of wastewater from Evaporation Ponds #3, #4 and #5 in Table 3 following. Ponds #1 and #2 are empty. Beta Associates