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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 PVC Rim Ground Water Depth Below Difference from Notes <br /> (PVC rim to water) Elevation Elevation Elevation Original Ground Historic Levels <br /> (ft) (ft) (ft) (ft) (ft) (ft) <br /> un,35; T &G-no flow,setting water in <br /> spots; laterals-dry. Installation of <br /> perimeter drain compelted mid- <br />01/02/06 5.30 5037.04 5035.81 5031.7 4.1 1.1 December'05. <br /> Cloudy,35; T&G-6"standing water; <br />02/01/06 5.50 5037.04 5035.81 5031.5 4.3 1.3 laterals dry <br /> 50's,wind; T&G 2"not moving;laterals <br />03/01/06 5.50 5037.04 5035.81 5031.5 4.3 1.4 dry <br /> 50's,cloudy;T&G 2" standing; laterals <br />04/04/06 5.50 5037.04 5035.81 5031.5 4.3 1.5 dry <br />05/01/06 5037.04 5035.81 #VALUE! Well access destroyed by ditch fire <br />06/01/06 5037.04 5035.81 #VALUE! Well access destroyed by ditch fire <br />07/05/06 5037.04 5035.81 #VALUE! Well access destroyed by ditch fire <br />08/01/06 5037.04 5035.81 #VALUE! Well access destroyed by ditch fire <br /> MW repaired 8/06--new elev <br /> surveyed.; 60s,Sun;T&G & laterals <br />09/05/06 7.90 5038.78 5036.26 5030.9 5.4 (3.2) dry <br />10/02/06 7.60 5038.78 5036.26 5031.2 5.1 (1.4) 70s,Cloudy; T&G & laterals low <br />11/01/06 7.00 5038.78 5036.26 5031.8 4.5 (0.2) 10s; T&G IOW; laterals low <br /> 10s,cloudy; T&G low,flowing; laterals <br />12/01/06 7.00 5038.78 5036.26 5031.8 4.5 0.3 low <br />01/01/07 No measures due to snow depth <br />02/01/07 No measures due to snow depth <br /> 30,cold; T&G2"&trickling;laterals <br />03/01/07 6.60 5038.78 5036.26 5032.2 4.1 1.6 frozen <br /> 50; T&G-4"&trickling;laterals mostly <br />04/02/07 6.70 5038.78 5036.26 5032.1 4.2 1.6 dry <br /> 60,warm;T&G trickling-mostly dry; <br />05/03/07 6.10 5038.78 5036.26 5032.7 3.6 (0.8) laterals mostly dry <br />06/04/07 5.60 5038.78 5036.26 5033.2 3.1 (0.3) 70,warm; T&G full&flowing <br />07/05/07 4.50 5038.78 5036.26 5034.3 2.0 0.7 90s,sun; T&G full&flowing <br /> S. Gomke measured (12:44 pm.) per request <br /> as a follow-up to conditions after valve was <br /> installed on drain. Valve was installed <br /> 7/11/07 and drain flow was shut off 100% <br /> until SE corner drys out. Water is being <br /> directed into the pit. Per Sandy, the ditches <br />07/18/07 5.80 5038.78 5036.26 5033.0 3.3 are full & flowing. <br /> S. Gomke measured (10:35 am) per request <br /> as a follow-up to conditions after valve <br /> installed on drain. Ditches full & flowing. Per <br /> discussion w/Nick Silbaugh on 7/24/07, 100% <br /> of flow is still into pit. He plans to adjust <br />07/26/07 5.60 5038.78 5036.26 5033.2 3.1 valve to 50%. <br />Page 4