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GROUNDWATER OBSERVATION DATA SHEETS RIVERVIEW RESOURCE <br /> Aggregate Industries <br /> WELL NUMBER MW-4 <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 8:15 25.80 4728.43 4725.94 4702.63 23.31 (7.30) No dewatering. <br /> Resumed dewatering on E of Cell 3 8/15/16 <br /> 8/16/2016 9:11 24.20 4728.43 4725.94 4704.23 21.71 (5.30) (flows to neighbors &to now isolated S pond). <br /> 9/16/2016 9:24 26.10 4728.43 4725.94 4702.33 23.61 (6.80) <br /> 10/24/2016 8:49 28.40 4728.43 4725.94 4700.03 25.91 (8.90) <br /> 11/9/2016 8:45 29.40 4728.43 4725.94 4699.03 26.91 (9.60) <br /> 12/16/2016 8:37 31.40 4728,43 4725.94 4697.03 28.91 (13.00) <br /> 1/12/2017 9:03 31.40 4728.43 4725.94 4697.03 28.91 (12.80) <br /> 2/00/17 4728.43 4725.94 No readings (plant management changes) <br /> 3/00/17 4728.43 4725.94 No readings (plant management changes) <br /> 4/19/2017 10:38 4728.43 4725.94 <br /> 5/24/2017 4728.43 4725.94 No reading <br /> 6/28/2017 13:33 32.30 4728.43 1 4725.94 4696.13 29.81 (13.30) <br /> Page 1 of 1 <br />