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GROUNDWATER OBSERVATION DATA SHEETS RIVERVIEW RESOURCE <br /> Aggregate Industries <br /> WELL NUMBER MW-12 <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 9:16 7.00 4705.56 4702.46 4698.56 3.90 1.40 No dewatering. <br /> Resumed dewatering on E of Cell 3 8/15/16 <br /> 8/16/2016 10:15 7.80 4705.56 4702.46 4697.76 4.70 1.00 (flows to neighbors &to now isolated S pond). <br /> 9/16/2016 10:44 6.90 4705.56 4702.46 4698.66 3.80 1.80 <br /> 10/24/2016 10:06 7.40 4705.56 4702.46 4698.16 4.30 0.80 <br /> 11/9/2016 9:42 7.00 4705.56 4702.46 4698.56 3.90 1.50 <br /> 12/16/2016 10:25 6.30 4705.56 4702.46 4699.26 3.20 1.30 <br /> 1/12/2017 10:00 5.90 4705.56 4702.46 4699.66 2.80 2.40 <br /> 2/00/17 4705.56 4702.46 No readings (plant management changes) <br /> 3/00117 4705.56 4702.46 No readings (plant management changes) <br /> 4/19/2017 8:26 8.10 4705.56 4702.46 4697.46 5.00 0.40 <br /> 5/24/2017 8:52 6.10 4705.56 4702.46 4699.46 3.00 2.40 <br /> 6/28/2017 1 15:42 7.20 4705.56 4702.46 4698.36 4.10 0.70 <br /> Page 1 of 1 <br />