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Table 2-Monthly Piezometer Elevations <br /> Monitoring Well Piezometer Depth Depth to Water Depth of Water <br /> Identification Observation Date R ft ft <br /> P6 06/28/2018 72.46 DRY 0.00 <br /> P7 06/28/2018 92.50 DRY 0.00 <br /> P8 06/28/2018 97.51 96.54 0.97 <br /> P9 06/28/2018 72.30 71.97 0.33 <br /> P10 06/28/2018 58.30 57.57 0.73 <br /> I'll 06/28/2018 41.80 41.38 0.42 <br /> P12 06/28/2018 41.71 41.69 0.02 <br /> P13 06/28/2018 41.34 41.04 0.30 <br /> P14 06/28/2018 41.24 DRY 0.00 <br /> P 15 06/28/2018 41.10 40.85 1 0.25 <br /> The leak detection system at the TSF Collection Pond was inspected June 28,2018. A total of 860 gallons <br /> (30.7 GPD)were evacuated from the leak detection system and pumped to the LTF. The LTF underdrain <br /> system flow was measured to be approximately 28.5 gallons per minute(gpm). <br /> West Pit Waste Water Treatment Plant <br /> During the month of June 2018, the West Pit Water Treatment Plant was operated under Colorado <br /> Department of Public Health and Environment(CDPHE)CDPS Permit No. C00045675 for discharge into <br /> the Rito Seco alluvial aquifer. During the month of June, 7,020,600 gallons (21.55 acre-feet) of treated <br /> water was discharged to the Rito Seco. There was 431,500 gallons (1.32 acre-feet) of water transferred <br /> from the West Pit to the LTF in June 2018. There was no sludge transferred from the water treatment plant <br /> drying pad to the LTF. <br /> BMRl performed the monthly visual seepage expression inspections on June 29, 2018 in the historic <br /> seepage area identified in Figure 2 of the permit. No seepage expressions were observed in the historic <br /> seepage area during June 2018. <br /> BMRl measured the monthly West Pit backfill, alluvial and monitoring wells as required under in the <br /> QA/QC Plan. Measurements obtained for the monthly wells are shown in Table 3. <br /> Table 3-Monthly and Quarterly Groundwater Depth to Water <br /> Monitoring Well Identification Observation Date Depth to Water <br /> ft <br /> BF-4 06/28/2018 24.94 <br /> BF-511 06/28/2018 30.84 <br /> BF-6 06/28/2018 30.95 <br /> M-6 06/28/2018 DRY <br /> M-7 06/28/2018 DRY <br /> M-8 06/28/2018 DRY <br /> M-9 06/28/2018 141.73 <br /> M-10 06/28/2018 26.03 <br /> M-11 R 06/28/2018 39.46 <br /> M-12 06/28/2018 175.10 <br /> M-13R 06/28/2018 126.04 <br /> M-14 06/28/2018 131.09 <br /> M-15 06/28/2018 93.89 <br /> M-16 06/28/2018 22.78 <br /> M-17 06/28/2018 30.56 <br /> M-18 06/28/2018 26.60 <br />