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GROUNDWATER OBSERVATION DATA SHEETS RIVERVIEW RESOURCE <br /> Aggregate Industries <br /> WELL NUMBER MW-20 <br /> MW Permit No. 276592 40 Degrees 27.13 north; 104 Degrees 48.47 West <br /> Depth Measured PVC Rim Ground Water Depth Below Difference from Notes <br /> Date Time (PVC rim to water) Elevation Elevation Elevation Original Ground Historic Levels Plant area was actually being dewatered at least <br /> (ft) (ft) (ft) (ft) (ft) (ft) intermittently July 2010 on until noted otherwise <br /> 7/14/2016 8:43 16.90 4728.87 4726.12 4711.97 14.15 300 No dewatering. <br /> Resumed dewatering on E of Cell 3 8/15/16 (flows <br /> 8/16/2016 9:35 15.60 4728.87 4726.12 4713.27 12.85 (2.30) to neighbors &to now isolated S pond). <br /> 9/16/2016 9:53 15.90 4728.87 4726,12 4712.97 13.15 1.80 <br /> 10/24/2016 9:23 16.80 4728.87 4726.12 4712.07 14.05 1.20 <br /> 11/9/2016 9:09 17.10 4728.87 4726.12 4711.77 14.35 1.10 <br /> 12/16/2016 8:59 17.60 4728.87 4726.12 4711.27 14.85 <br /> 1/12/2017 9:35 18.00 4728.87 4726.12 4710,87 15.25 0.80 <br /> 2/00/17 4728.87 4726.12 No readings (plant management changes) <br /> 3/00/17 4728.87 4726.12 No readings (plant management changes) <br /> 4/19/2017 11:18 18.80 4728.87 4726.12 4710.07 16.05 0.70 <br /> 5/24/2017 4728.87 4726.12 Pipeline construction--no access <br /> 6/28/2017 14:40 37.20 4728.87 4726.12 4691.67 34.45 (17,40) Mud at 37.2? (reading may have been incorrect) <br />