REP10949

• Permit No: C1981008
• IBM Index Class Name: Report
• Doc Date: 2/27/1990
• Doc Name: NUCLA ANNUAL HYDROLOGY REPORT REVIEW
• From: MLRD
• To: CATHY BEGEJ
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

TABLE 5
SUMMARY OF GROUND WATER MONITORING WELLS FOR
NUCLA AND NUCLA EAST MINES

Location Well
Casing Ground
Casing
Stickup
5'1e 11 Name (Twn Rng Sect Northing Ea sting Formation Depth Diam. Elev
'ompu ter No J Otr Otr Otr) (ft) (ftl Monitored (f t) (in) (ft)
Plucla Mine:
GW-tJt (Wh10001) 47 N16W25UAD N 607384.28 E1116957.59 Underburden SB.O 4.0 5799.50 0.72
GW-tJt P1 (Wt40002) 47 N16W25DAD N 607397,85 E1116992.10 Underburden 60.0 2.0 5799.79 1.40
GW-N3 (W1100D3) 47N16W36BBD N 605034.65 E1113538. 14 Underburden 70.0 4,0 5666.22 0.34
GW-N4 (4'h10004) 47h116W36BCC N 603788.53 E1112300. 68 Dakota Coal 44.0 4.0 5581,60 1.15
GW'-NS (WIJ0005) 47N16W25DDC N 606196.17 E1116264.29 Underburden (Min ed Out in 1987)
GW-N6 (W'IJ0006) 47N151V31CCA N 601562.41 E1118546.55 Underburden 225.4 4.0 5778.60 0.42
GW-N8 (W'M0008) 47N16W25CCB N 606782.68 E1112734.23 Ovb & Coal 100.0 Z.0 5728.23 1.82
GYI-N9 (WM0009) 47N16Y125CAD N 607834.19 E1114888.13 Ovb & Coal 72.5 4.0 5764.00 1.17
GW-N10 (WIJ0010) 47N16Yl360DC N 603784.31 E1114189.85 5poi 75 70.0 4.0 5668.80 1.76
GW'-N11 (Wh10011) 47N15W31CBA N 602892.79 E1118218.79 Underburden 63.0 2.0 5701,20 1.61
GW-N23 (Yl1-00023) 47N16W36AA0 M 604734,97 E1117074.12 Ov b, Coal,& UB (Min ed Out in 1987)
GW-N24 (Wh10024) 47N15W316CC N 603814,99 E1118342.28 Ovb,Coal ,d UB 31.5 2.0 5764.05 2.67
GW-N25 (Wh10025) 47N16W36ADA N 604151.97 E1117019.88 Ovb,Coa1,8 UB 33.5 2.0 5731.27 2,95
CW-N26 (WM0026) 47N16W36BB N 603746.24 E1113602,44 Spoils 52.6 4,0 5657.96 3.12
GW-N27 (WM0027) 47N16W36BB N 605080.72 E1112932.45 Spoils 53.9 4.0 5665.95 0,86
GW-N2B (WM0028) 47N16Y.'36B8 N 605781.26 E1113562.14 Spoils 52.5 4.0 5691,08 2.50
GW-N4R (WM0104) 47N16W36BC N 603783.58 E1112180. 13 Od kota Coal 44.5 4.0 5582,38 1.98
1Jucla East Mine:

Slotted
Interval
48.0 - 58.0
48.0 - 60.0
56.0 - 70.0
34.0 - 44.0
50.0 - 100.0
45.0 - 72.5
40.4 - 70.0
55.0 - 63.0
26.0 - 31.5
27.5 - 33.5
42.6 - 52.6
23.9 - 53.9
22.5 - 52.5
36.5 - 44.5
GW-N13 (4(P10013) 47N16W36DAC N 601969.90 E1116091.37 Underburden 145.6 4.0 5710.82 1.33 98.7 - 145.6
GW-N14 ('WIJ 0014) 47N16W36DAC N 601954,17 E1116090.87 Dakota Coal 95.0 4.D 5711.68 1,40 80.1 - 95.0
GW-N15 (WIJ0015) 47N16Yf36DAC N 601939.19 E1116089.86 Overburden 79,8 4.0 5712.55 1.28 15.3 - 79.8
GW-N 16* (WN0016) 4EN15W6BCC N 597934,64 E1117870. 98 Underburden 158.0 4.0 5673.70 1.29 112.2 - 158.0
GW-F117* (WN0017) 46N15W6000 N 597926.68 E1117885.98 Dakota Coal 102,5 4.0 5674,12 1.23 82.2 - 102.5
GW-N18* (WN0G18) 46N15W6BCC N 597928.65 E1117901.37 Overburden 80.0 4.0 5673.96 1.43 10.2 - 80.0
GW-N 19 (WN0019) 46N15W66AA N 600391.10 E1119320.42 Underburden 124.5 4.0 5737,69 1.38 79.0 - 124.5
GW-N20 (WN0020) 46N15W68AA N 600391,84 E1119304,80 Dakota Coal 76.5 4,0 5739.75 1.31 58.6 - 76.5
GW-N21 (WN0021) 46N15Y16BAA 1J 600392.38 E1119289.39 Overburden 56.0 4.0 5740.94 1.24 26.0 - 56.0