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Depth (ft) Elevation (ft) I MONITORING WELL CONSTRUCTION SUMMARY <br />r0 3. <br />203.0 <br />2055 <br />Site Location: <br />5239 7 Project Number: <br />52376 Survey Coordinates - <br />Colorado State Plane <br />5234.6 <br />5034.6 <br />5032.1 <br />Drilling Summary <br />Boettcher Quarry <br />10381640A <br />E 3098238 00 <br />N- 1486747.45 <br />Total Depth- 231 1 ft <br />Borehole Diameter 8.0 in <br />Casing Stickup Height- 2.04 ft <br />Driller: Precision Sampling, Inc. <br />Rig CME 55 <br />Bits(s) 7 7/8 -inch roller bit <br />Drilling Fluid Air /water <br />Protective Casing, 6 "x6" Steel Riser <br />Well Design and Specifications <br />Basis Field Notes <br />Casino Strino(s) C = Casino _ S = Screen <br />Depth (ft bls) <br />String(s) <br />Elevation (feet) <br />-204 <br />- 0.0 <br />C1 <br />5239.7 <br />- 5237 6 <br />0.0 <br />- 209.7 <br />C2 <br />5237 6 <br />- 5027 9 <br />209.7 <br />- 229.2 <br />S <br />5027.9 <br />- 5008 4 <br />229.2 <br />- 229.7 <br />C3 <br />5008.4 <br />- 5007.9 <br />Grout annulus <br />12/20 <br />1400 <br />12/20 <br />15'50 <br />Set pad <br />12/29 <br />14.00 <br />12/29 <br />16.06 <br />Well No. <br />MW -6 <br />Boring No. X -Ref: <br />N/A <br />Surface Elevation <br />52376 ft <br />Top of Casing <br />52397 ft <br />Construction Time Log <br />Task <br />Start <br />Date Time <br />Finish <br />Date I Time <br />Drill borehole <br />12/16 <br />1430 <br />12/19 <br />1500 <br />Air lift hole <br />12/19 <br />1615 <br />12/20 <br />10:25 <br />Install well <br />12/20 <br />1145 <br />12/20 <br />12:45 <br />Install sand /seal <br />12/20 <br />1245 <br />12/20 <br />13:15 <br />Grout annulus <br />12/20 <br />1400 <br />12/20 <br />15'50 <br />Set pad <br />12/29 <br />14.00 <br />12/29 <br />16.06 <br />38 <br />772 <br />404 <br />160 <br />1436 <br />40 <br />778 <br />4.05 <br />14.7 <br />1/23/13 <br />1449 <br />44 <br />785 <br />4.02 <br />14.0 <br />1/23/13 <br />1457 <br />46 <br />790 <br />3.82 <br />136 <br />1/23/13 <br />1504 <br />47 <br />7.90 <br />3.79 <br />132 <br />1/23/13 <br />1508 <br />49 <br />7.94 <br />3.76 <br />Well Development <br />Depth to water initial: 191 25' final, 225 42' <br />60 gallons removed after surging and <br />bailina on 01/23/2013 and 01/31/2013 <br />2097- <br />5027.9 <br />Development <br />Date <br />m /dd /yy <br />Time <br />hr mm <br />Stabilization <br />Vol <br />(gals) <br />p H <br />Test <br />Cond <br />(ms /Cm) <br />Data <br />Temp <br />( °C) <br />Casing: C1 2" ID Schedule 40 PVC <br />+2.04 ft to 0 ft (casing stickup) <br />C2 2" ID Schedule 40 PVC <br />0 ft to 209 7 ft bls <br />Screen: S Schedule 40 PVC 20 -slot <br />209.7 ft to 229 2 ft bls <br />End Cap: C3 2" ID SCH 40 PVC end cap <br />from 229.2 ft to 229 7 ft bls. <br />Filter Pack: 10/20 silica sand between <br />231.1 ft and 205.5 ft bls (12 50 -pound bags) <br />1/23/13 <br />1415 <br />36 <br />768 <br />417 <br />17.1 <br />229.2 <br />5008.4 <br />1/23/13 <br />1/23/13 <br />14.25 <br />38 <br />772 <br />404 <br />160 <br />1436 <br />40 <br />778 <br />4.05 <br />14.7 <br />1/23/13 <br />1449 <br />44 <br />785 <br />4.02 <br />14.0 <br />1/23/13 <br />1457 <br />46 <br />790 <br />3.82 <br />136 <br />1/23/13 <br />1504 <br />47 <br />7.90 <br />3.79 <br />132 <br />1/23/13 <br />1508 <br />49 <br />7.94 <br />3.76 <br />128 <br />1/23/13 <br />1512 <br />50 <br />8.00 <br />3.47 <br />130 <br />1/23/13 1/23/13 <br />15 15 <br />51 <br />7.97 <br />364 <br />127 <br />1/23/13 <br />1520 <br />52 <br />7.97 <br />383 <br />127 <br />Grout Seal: CETCO Puregold bentonite <br />grout between 3 ft and 203 ft bls <br />1/23/13 <br />15:24 <br />53 <br />796 <br />411 <br />130 <br />2297- <br />5007.9 <br />1/23/13 <br />15.28 <br />55 <br />799 <br />4.28 <br />12.8 <br />Twentytwo (22) 50 -pound bags <br />1/23/13 <br />15:36 <br />56 <br />782 <br />6.00 <br />12.5 <br />231 1 <br />5006 5 <br />Bentonite Seal: CETCO medium <br />bentonite chips between 203 ft and 205.5 ft bls <br />1/31/13 <br />16'15 <br />57 <br />766 <br />9.05 <br />11.3 <br />NOT TO SCALE <br />1/31/13 <br />16 40 <br />58 <br />792 <br />933 <br />11 8 <br />1/31/13 <br />16 50 <br />59 <br />7.90 <br />9.85 <br />1 128 <br />One 50 -pound bucket <br />1/31/131 <br />1703 <br />60 <br />7.87 <br />1001 <br />1 125 <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 />Stainless steel basket centralizers installed at depths of 208 ft bls, 160 ft bls, 110 ft bls, 60 ft bls and 10 ft bls <br />Screen is length of the 20 -slot perforations, not entire screen section. <br />Supervised by Christine Pribulick Date 12/18/2012 <br />T ilk Golder <br />Associates <br />