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Derr Pit Monitor Well Readings
<br /> Well Designation MW-16 MW-17 MW-18
<br /> Top of Well(ft) 4656.19 4663.63 4667.49
<br /> Ground Elevation(ft) 4653.45 4660.53 4664.55
<br /> ept t' ept t' Jepth t, Jept t, U
<br /> ept t' uepth t
<br /> Gmuntlwat-- Gmuntlwat-- Elevaoon of Gmud-l-f- Grountlwaterfmm Elevaoon of Groun-l-f- Ground-terf- Elevaoon of
<br /> Top of Well Grountl Gmun d-ter Top of Well Grountl Grow-ter Top of Well Grountl Grow-ter
<br /> Date (ftJ (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft)
<br /> September 26,2018
<br /> October 26,2018
<br /> November 20,2018
<br /> December 18,2018
<br /> January 17,2019
<br /> February 12,2019
<br /> March 7,2019
<br /> April 22,2019
<br /> May 14,2019
<br /> June 21,2019
<br /> July 24,2019
<br /> August 21,2019 43.63 40.89 4612.56 47.00 43.90 4616.63 46.38 43.44 4621.11
<br /> September 17,2019 44.44 41.70 4611.75 46.95 43.85 4616.68 46.52 43.58 4620.97
<br /> October 17,2019 44.52 41.78 4611.67 46.59 43.49 4617.04 46.61 43.67 4620.88
<br /> November 13,2019 44.87 42.13 4611.32 46.75 43.65 4616.88 46.74 43.80 4620.75
<br /> December 10,2019 44.91 42.17 4611.28 46.80 43.70 4616.83 46.73 43.79 4620.76
<br /> January 9,2020 45.30 1 42.56 4610.89 1 47.16 44.06 4616.47 46.95 44.01 1 4620.54
<br /> February 12,2020 46.53 43.79 4609,66 47.87 44.77 4615,76 47.54 44.60 4619,95
<br /> March 12,2020 45.22 42.48 4610.97 47.68 44.58 4615.95 47.32 44.38 4620.17
<br /> April 9,2020 44.38 41.64 4611.81 47.31 44.21 4616.32 46.97 44.03 4620.52
<br /> May 14,2020 43.90 41.16 4612.29 47.00 43.90 4616.63 46.63 43.69 4620.86
<br /> June 1 1,20 20 43.50 40.76 4612.69 46.52 43.42 4617.11 46.15 43.21 4621.34
<br /> July 9,2020 43.33 40.59 4612.86 48.89 45.79 4614.74 46.14 43.20 4621.35
<br /> August 13,2020 44.61 41.87 4611.58 48.41 45.31 4615.22 47.21 44.27 4620.28
<br /> September 10,2020 44.25 41.51 4611.94 47.56 1 44.46 4616.07 46.85 43.91 4620.64
<br /> October 8,2020 43.56 40.82 4612.63 46.27 43.17 4617.36 46.05 43.11 4621.44
<br /> November 12,2020 43.85 41.11 4612.34 46.19 43.09 4617.44 46.06 43.12 4621.43
<br /> December 10,2020 44.03 41.29 4612.16 46.22 43.12 4617.41 45.91 42.97 4621.58
<br /> January 14,2021 43.68 40.94 4612.51 46.09 42.99 4617.54 45.67 42.73 4621.82
<br /> February 12,2021 43.84 41.10 4612.35 46.23 43.13 4617.40 45.95 43.01 1 4621.54
<br /> March 11,2021 43.65 40.91 4612.54 46.43 43.33 4617.20 46.33 43.39 4621.16
<br /> April 8,2021 43.96 41.22 4612.23 46.69 43.59 4616.94 46.65 43.71 4620.84
<br /> May 13,2021 43.49 40.75 4612.70 47.01 43.91 4616.62 46.87 43.93 4620.62
<br /> June 10,2021 43.16 40.42 4613.03 46.50 43.40 4617.13 46.56 43.62 4620.93
<br /> July 8,2021 42.71 39.97 4613.48 46.10 43.00 4617.53 46.00 43.06 4621.49
<br /> August 12,2021 43.45 40.71 4612.74 47.70 44.60 4615.93 46.95 44.01 4620.54
<br /> September 9,2021 43.94 41.20 4612.25 47.70 44.60 4615.93 46.28 43.34 4621.21
<br /> October 14,2021 43.02 40.28 4613.17 45.65 42.55 4617.98 46.05 43.11 4621.44
<br /> November 12,2021 42.59 39.85 4613.60 45.14 42.04 4618.49 45.44 42.50 4622.05
<br /> December 9,2021 42.57 39.83 4613.62 45.00 41.90 4618.63 44.21 41.27 4623.28
<br /> January 13,2022 42.21 39.47 4613.98 45.31 42.21 4618.32 44.46 41.52 4623.03
<br /> February 9,2022 43.02 40.28 4613.17 45.36 42.26 4618.27 44.48 41.54 4623.01
<br /> March 11,2022 43.15 40.41 4613.04 45.51 42.41 4618.12 44.55 41.61 4622.94
<br /> April 14,2022 43.10 40.36 4613.09 45.76 42.66 4617.87 44.91 41.97 4622.58
<br /> May 17,2022 42.93 40.19 4613.26 45.91 42.81 4617.72 45.19 42.25 4622.30
<br /> June 9,2022 42.43 39.69 4613.76 45.50 42.40 4618.13 44.90 41.96 4622.59
<br /> July 14,2022 43.24 40.50 4612.95 No Reading #VALUEI #VALUEI 45.18 42.24 4622.31
<br /> August 11,2022 43.11 40.37 4613.08 No Reading #VALUEI #VALUEI 45.70 42.76 4621.79
<br /> September 8,2022 43.46 40.72 4612.73 49.63 44.47 4614.00 45.49 42.55 4622.00
<br /> October 11,2022 42.46 39.72 4613.73 47.36 42.20 4616.27 44.43 41.49 4623.06
<br /> November 10,2022 42.28 39.54 4613.91 46.93 41.77 4616.70 44.10 41.16 4623.39
<br /> December 8,2022 42.27 39.53 4613.92 47.03 41.87 4616.60 44.12 41.18 4623.37
<br /> January 12,2023 42.65 39.91 4613.54 47.33 42.17 4616.30 44.40 41.46 4623.09
<br /> February 9,2023 42.65 39.91 4613.54 47.33 42.17 4616.30 44.40 41.46 4623.09
<br /> March 9,2023 43.30 40.56 4612.89 47.89 42.73 4615.74 44.91 41.97 4622.58
<br /> April 25,2023 43.80 41.06 4612.39 49.41 44.25 4614.22 46.50 43.56 4620.99
<br /> May 11,2023 43.37 40.63 4612.82 49.52 44.36 4614.11 45.73 42.79 4621.76
<br /> June 8,2023 42.70 39.96 4613.49 48.06 42.90 4615.57 45.17 42.23 4622.32
<br /> July 13,2023 41.50 38.76 4614.69 47.35 42.19 4616.28 44.30 41.36 4623.19
<br /> August 10,2023 41.22 38.48 4614.97 47.94 42.78 4615.69 44.78 41.84 4622.71
<br /> 9/8/22 MW-17 Repaired and Top of Well is at Elevation 4670.5
<br /> Well Readings with a"not read"indicate the well has been damaged or removed due to its location being in conflict with the slurry wall construction
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