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Table 2-Monthly Piezometer Elevations <br /> Monitoring Well Piezometer Depth ' Depth to Water Depth of Water <br /> Identification Observation Date ft ft 11 <br /> P6 11/28/2019 72.46 DRY N/A <br /> P7 11/28/2019 92.50 92.29 0.21 <br /> P8 11/28/2019 97.51 96.68 0.83 <br /> P9 11/28/2019 72.30 71.88 0.42 <br /> P10 11/28/2019 58.30 57.55 0.75 <br /> I'll 11/28/2019 41.80 41.36 0.44 <br /> P12 11/28/2019 41.71 41.67 0.04 <br /> P13 11/28/2019 41.34 41.00 0.34 <br /> P14 1 11/28/2019 1 41.24 DRY N/A <br /> P15 1 11/28/2019 1 41.10 40.85 0.25 <br /> The leak detection system at the LTF Collection Pond was inspected November 28, 2019. A total of 830 <br /> gallons (29.6 GPD) were evacuated from the leak detection system and pumped to the LTF. The LTF <br /> underdrain system was visually inspected November 271h, 2019 and the flow rate was measured to be <br /> approximately 34.0 gallons per minute(gpm). <br /> West Pit Waste Water Treatment Plant <br /> During the month of November 2019, the West Pit Waste Water Treatment Plant (WWTP) was operated <br /> under Colorado Department of Public Health and Environment (CDPHE) CDPS Permit No. C00045675 <br /> and discharged 6,548,800 gallons (20.1 acre-feet) of treated water into the Rito Seco alluvial aquifer. <br /> Additionally, 257,800 gallons(1.1 acre-feet)of water was transferred from the West Pit to the LTF. There <br /> was no sludge transferred from the WWTP drying pad to the LTF. <br /> BMRl performed the monthly visual seepage expression inspections on November 27, 2019 in the historic <br /> seepage area identified in Figure 2 of the permit. No seepage expressions were observed in the historic <br /> seepage area. <br /> BMRI measured the monthly West Pit backfâ–ºll, 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 11/28/2019 24.96 <br /> BF-511 11/28/2019 30.85 <br /> BF-6 11/28/2019 30.97 <br /> M-6 11/28/2019 DRY <br /> M-7 11/28/2019 DRY <br /> M-8 11/28/2019 DRY <br /> M-9 11/28/2019 141.38 <br /> M-10 11/28/2019 25.36 <br /> M-11 R 11/28/2019 38.28 <br /> M-12 11/28/2019 174.86 <br /> M-13R 11/28/2019 125.86 <br /> M-14 11/28/2019 130.89 <br /> M-15 11/28/2019 90.52 <br /> M-16 1 11/28/2019 1 23.00 <br /> M-17 11/28/2019 30.55 <br /> M-18 11/28/2019 26.67 <br />