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Ju1�Y13, 9 1 82 <br /> Project 116-1 .3 <br /> - 2 - <br /> Additional industrial! wastes consisting of wet-solid sludges were accepted <br /> for disposal in the Group 1 Trench Landfill Area and were placed in Trench #3• <br /> Liquid wastes consisting of drilling mud and gas-well brines were disposed <br /> in the Evaporation Pond system. Table 2 below, provides volume data on <br /> all Group 1 waste approved for disposal in Landfill Trench #3 and liquid <br /> waste discharged to the Evaporation Ponds. <br /> TABLE 2 - GROUP 1 WASTE AND LIQUID WASTE <br /> FMC Drilling Mud Brine <br /> Month (cu.yds. ) (bbls.) (bbls.) <br /> April 1982 2180 36,220 3370 <br /> May 1982 1500 8,200 2685 <br /> June 1982 1840 200 2280 <br /> TOTALS 5520 44,620 8335 <br /> Note: 1 bbl . = 42 gallons <br /> Group 1 sludge wastes placed in Disposal Trench #3 are covered, when possible, <br /> on a daily basis with a minimum 6 inch thickness of clean earth as requested <br /> by representatives of the California Department of Health Services. <br /> Landfill trenches in the Group 1 Disposal Area are checked each quarter <br /> for the presence of water in the leachate collection sumps. During this <br /> monitoring period, all trench sumps have remained dry. ' <br /> As agreed in our last meeting, we have taken Ponds #1 , #2 and #3 out of <br /> service to remove accumulated solids and to check pond liner integrity. <br /> Mud waste removed from the ponds will be dried and disposed in either <br /> Group 1 Trench #3 or in the Group 2 Landfill Area depending upon its <br /> chemical composition. <br /> Groundwater samples were collected from Monitoring Wells #7 and #9 on <br /> July 2, 1982. Prior to sampling, each well was bailed to remove a volume <br /> of water equal to four well volumes. The sample was then collected and <br /> filtered through a #42 Whatman Filter Paper to remove suspended solids. <br /> The sample was then split and half of each sample was fixed with nitric <br /> acid to preserve for metal ions. <br /> These sampling methods and subsequent analyses are in conformance with <br /> "Standard Methods for the Examination of Water and Wastewater". Analyses <br /> were performed by Nelson Laboratories of Stockton, California, a water <br /> laboratory certified by the California Department of Health Services. <br /> Table 3 summarizes all groundwater observations and analyses at Monitoring <br /> Wells #7 and #9. <br /> GBetac_Associates �j <br />