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Depth (ft) Elevation (ft) <br />-2.56 5276 4 <br />00 5273 9 <br />3.0 . 5270 9 <br />32. <br />35 <br />37 <br />52412 <br />5238.7 <br />MONITORING WELL CONSTRUCTION SUMMARY <br />Site Location: Boettcher Quarry Well No. MW -5 <br />Project Number: 10381640A Boring No. X -Ref: N/A <br />Survey Coordinates E. 3097213.94 Surface Elevation 5273.9 ft <br />Colorado State Plane N: 1489893.21 Top of Casing 5276.4 ft <br />Drilling Summary <br />Total Depth: 600 ft <br />Borehole Diameter: 7.3 in <br />Casing Stickup Height. 256 ft <br />Driller Precision Sampling, Inc. <br />Construction <br />Task <br />Time Log <br />Start <br />Date I Time <br />Finish <br />Date I Time <br />Drill borehole <br />11/29 <br />1000 <br />11/30 <br />11/30 <br />11/30 <br />9.50 <br />1430 <br />1445 <br />Air lift hole <br />11/30 <br />13:30 <br />37.3 <br />Install well <br />11/30 <br />1430 <br />5216.8 <br />Install sand /seal <br />11/30 <br />14:45 <br />11/30 <br />16-00 <br />Rig CME 55 <br />Bits(s), 3 25 -inch ID Hollow Stem Auger <br />Grout annulus <br />12/1 <br />7:50 <br />12/1 <br />845 <br />Set pad <br />1215 <br />11:00 <br />12/5 <br />1430 <br />Drilling Fluid None <br />Protective Casing: 4 "x4" Steel Riser <br />Well Design and Specifications <br />Basis. Field Notes <br />Casino Strina(s) C = Casina. S = Screen <br />Depth (ft bls) <br />String(s) <br />Elevation (feet) <br />-256 <br />- 0.0 <br />C1 <br />5276.4 - <br />5273 9 <br />00 <br />- 37.3 <br />C2 <br />5273 9 - <br />5236.6 <br />37.3 <br />- 571 <br />S1 <br />5236.6 - <br />5216.8 <br />57.1 <br />- 574 <br />C3 <br />5216 8 - <br />5216.5 <br />133 <br />1/23/13 <br />9:05 <br />29 <br />6.99 <br />4.40 <br />13.1 <br />1/23/13 <br />915 <br />38 <br />Casing: C1 2" ID Schedule 40 PVC <br />+2 56 ft to 0 ft (casing stickup) <br />5236.6 C2 2" ID Schedule 40 PVC <br />Oft to373ft bis <br />Screen: S1 2" ID Schedule 40 PVC <br />20 -slot 37 3 ft to 57.1 ft bls <br />End Cap: C3 2" ID SCH 40 PVC end cap <br />from 57 1 to 57 4 ft bls <br />Filter Pack: 10/20 silica sand between <br />35 2 ft and 57 4 ft bls (20 50 -pound bags) <br />571- -52168 Grout Seal: CETCO Puregold bentonite <br />57 4 -52165 grout between 3 ft and 32 7 ft bls <br />One 50 -pound bucket. <br />60 0 5213 9 <br />Bentonite Seal: CETCO medium <br />cuttings bentonite chips between 32.7 ft and 35.2 ft bls. <br />NOT TO SCALE Four 50 -pound bags <br />Comments Coordinates are Colorado State Plane North Grid NAD 83 (feet). Elevations are NAD 88 Datum (feet) <br />Concrete from 0 ft to 3 ft bls including three -foot square pad "bls" = below land surface <br />Screen is length of the 20 -slot perforations, not entire screen section <br />Supervised by Christopher Krambis Date 11/30/2012 <br />Well Development <br />Depth to water initial, 42 57' final: 42.66' <br />Surged then pumped 220 gallons with <br />Grundfos submersible pump until clear. <br />Development Stabilization Test Data <br />Date <br />m /dd /yy <br />Time <br />hr mm <br />Vol <br />(gals) <br />p H <br />Cond <br />(ms /cm) <br />Temp <br />( °C) <br />1/23/13 <br />8:35 <br />0 <br />7.15 <br />4.26 <br />111 <br />1/23/13 <br />8:45 <br />11 <br />6.97 <br />400 <br />12.5 <br />1/23/13 <br />8:55 <br />20 <br />697 <br />417 <br />133 <br />1/23/13 <br />9:05 <br />29 <br />6.99 <br />4.40 <br />13.1 <br />1/23/13 <br />915 <br />38 <br />697 <br />435 <br />13.3 <br />1/23/13 <br />9:25 <br />47 <br />1 6.98 <br />4.35 <br />13.8 <br />1/23/13 <br />9:35 <br />56 <br />1 7.00 <br />4.59 <br />13.7 <br />1/23/13 <br />9:45 <br />65 <br />6.97 <br />4.36 <br />13.8 <br />1/23/13 <br />9:55 <br />74 <br />6.96 <br />4.32 <br />13.8 <br />1/23/13 <br />10:05 <br />88 <br />6.97 <br />4.22 <br />13.5 <br />1/23/13 <br />10:15 <br />98 <br />7.00 <br />4.61 <br />13.8 <br />1/23/13 <br />10:25 <br />108 <br />6.97 <br />4.35 <br />14.2 <br />1/23/13 <br />10:35 <br />116 <br />1 6.95 <br />4.28 <br />14.0 <br />1/23/13 <br />11:20 <br />135 <br />7.00 <br />4.33 <br />14.2 <br />1/23/13 <br />11:30 <br />150 <br />6.95 <br />4.13 <br />117 <br />1/23/13 <br />11:40 <br />170 <br />6.88 <br />4.17 <br />13.8 <br />1/23/13 <br />11:50 <br />190 <br />6.92 <br />4.14 <br />13.5 <br />1/23/13 <br />12:00 <br />210 <br />6.90 <br />4.17 <br />13.8 <br />1/23/13 <br />12:05 <br />220 <br />6.95 <br />4.17 <br />13.6 <br />G Golder <br />Associates <br />