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GROUNDWATER OBSERVATION DATA SHEE STEGNER FARM SAND & GRAVEL MINE <br />Aggregate Industries <br />WELL NUMBER S-4 <br />Date Depth Measured <br />(PVC rim to water) <br />(ft) PVC Rim <br />Elevation <br />(ft) Ground <br />Elevation <br />(ft) Water <br />Elevation <br />(ft) Depth Below <br />Original Ground <br />(ft) Difference from <br />Historic Levels <br />(ft) Notes <br /> <br /> <br /> <br /> <br /> <br />8/03/07 <br /> <br /> <br /> <br /> <br />.50 <br /> <br /> <br /> <br /> <br />038.78 <br /> <br /> <br /> <br /> <br />036.26 <br /> <br /> <br /> <br /> <br />033.3 <br /> <br /> <br /> <br /> <br />.0 <br /> <br /> <br /> <br /> <br />1.2) 90s,hot; T&G full&flowing. Per discussion <br />w/Nick Silbaugh 8/7, he adjusted valve on <br />8/1/07 for 80% of flow to go to pit & 20% to <br />drain. Heavy rains occurred in Ft. Collins <br />Thursday, 8/2. Stegner told Nick he had <br />around 5" of rain. <br /> <br />09/06/07 <br />6.00 <br />5038.78 <br />5036.26 <br />5032.8 <br />3.5 <br />(1.3) 60s,cloudy; T&G flowing, laterals- <br />trickles <br />10/01/07 6.30 5038.78 5036.26 5032.5 3.8 (0.1) 65,sunny; laterals-low trickle <br /> <br /> <br /> <br />1/05/07 <br /> <br /> <br />.80 <br /> <br /> <br />038.78 <br /> <br /> <br />036.26 <br /> <br /> <br />032.0 <br /> <br /> <br />.3 <br /> <br /> <br />0.0) 40, sun; laterals dry. Per N <br />Silbaugh, perimeter drain valve <br />adjusted 10/12 to send 100% of <br />water to drain. <br />12/03/07 7.00 5038.78 5036.26 5031.8 4.5 0.3 31, partly cloudy <br />01/03/08 7.10 5038.78 5036.26 5031.7 4.6 0.6 34, partly cloudy <br />02/01/08 6.80 5038.78 5036.26 5032.0 4.3 1.3 44, partly sunny <br />03/03/08 6.80 5038.78 5036.26 5032.0 4.3 1.4 44, partly cloudy, windy <br />04/14/08 6.80 5038.78 5036.26 5032.0 4.3 1.5 59, clear <br /> <br /> <br />05/20/08 <br /> <br />4.50 <br /> <br />5038.78 <br /> <br />5036.26 <br /> <br />5034.3 <br /> <br />2.0 <br /> <br />0.8 70; per N Silbaugh, perimeter drain <br />valve adjusted 60% to pit, 40% to <br />pipe <br />06/02/08 5.00 5038.78 5036.26 5033.8 2.5 0.3 <br /> <br /> <br />07/07/08 <br /> <br />5.20 <br /> <br />5038.78 <br /> <br />5036.26 <br /> <br />5033.6 <br /> <br />2.7 <br /> <br />(0.0) 85; per N Silbaugh, perimeter drain <br />valve adjusted 80% to pit, 40% to <br />pipe <br />08/12/08 4.40 5038.78 5036.26 5034.4 1.9 (0.1) 77, sunny <br />09/02/08 6.30 5038.78 5036.26 5032.5 3.8 (1.6) 60s, sunny; TG full & flowing <br />10/06/08 6.70 5038.78 5036.26 5032.1 4.2 (0.5) 60s, sunny; TG low <br /> <br /> <br />11/12/08 <br /> <br />6.90 <br /> <br />5038.78 <br /> <br />5036.26 <br /> <br />5031.9 <br /> <br />4.4 <br /> <br />(0.1) 50s, partly cloudy; TG low; per N <br />Silbaugh, perimeter drain valve <br />adjusted 100% to pipe <br />12/01/08 No measures taken <br />01/08/09 7.10 5038.78 5036.26 5031.7 4.6 0.6 <br />02/03/09 6.90 5038.78 5036.26 5031.9 4.4 1.2 <br />03/03/09 7.30 5038.78 5036.26 5031.5 4.8 0.9 <br />04/06/09 7.20 5038.78 5036.26 5031.6 4.7 1.1 <br /> <br />05/11/09 <br />6.30 <br />5038.78 <br />5036.26 <br />5032.5 <br />3.8 <br />(1.0) 68, sun, muddy; TG flowing; laterals <br />dry <br />06/18/09 6.30 5038.78 5036.26 5032.5 3.8 (1.0) 78, overcast <br />07/17/09 6.10 5038.78 5036.26 5032.7 3.6 (0.9) 90, sun <br />08/13/09 4.50 5038.78 5036.26 5034.3 2.0 (0.2) 73, sun <br />09/28/09 6.50 5038.78 5036.26 5032.3 4.0 (1.8) 68, sun, muddy <br />10/00/09 No measures <br />11/12/09 7.00 5038.78 5036.26 5031.8 4.5 (0.2) 72, sun <br />Page 5