1988-04-11_PERMIT FILE - C1981008A ‎(11)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Aquifer Test Data,Data Plots,Supporting Calculations & Type Curves for Nucla & Nucla East Mining
• Section_Exhibit Name: Tab 7 Appendix 7-2
• Media Type: D
• Archive: Yes

PEABODY COAL COMPANY - WESTERN DIVISION
AQUIFER TEST DATA
Mine Nucla East Page 1 / 2
State Colorado County Montrose Well No. GW-N18P1
Personnel M. Koffler, N. Hansen T. 46 ,R. 15 E. Sec. 6
S.
Test Type Single well recovery
Total Well Depth 80.00 ft. Well Diameter 7 7/8 in. Casing Diameter 4.0 in.
Casing Type PVC Type of Screen or Perforation .500 Mill slot
Interval of Screen or Perforation 11 .5 - 80.0
Aquifer Overburden Aquifer Lithology sandstone and shale
Altitude of Land Surface 5673.98 How Determined Surveyed
SWL ft. 29.52 How Measured Electric tape
Date Time Water Level H H/Ho
(mins. ) (ft. ) Ho= 30.65
11-17-87 Pumg off 0959:30
17 30.65 1 .00
.14 59.37 29.85 .97
.27 58.60 29.08 .95
.38 57.59 28.07 .92
.45 56.98 27.46 .90
.56 56.21 26.69 .87
1 .08 55.49 25.97 .85
1 .23 54.53 25.01 .82
2.00 52.25 22.73 .74
2.50 50.11 20.59 .67
3.00 48.25 18.73 .61
3.50 46.49 16.97 .55
4.00 44.74 15.22 .50
4.50 42.67 13. 15 .42
5.00 40.99 11 .47 .37
6.00 37.77 8.25 .27
7.00 35.22 5.70 .19
8.00 33.35 3.83 .13
9.00 31 .96 2.44 .08
10.00 31 .12 1 .60 .05
11 .00 30.63 1 . 11 4
12.50 30.28 .76 .02
14.00 30. 11 1 .59
15.00 30.05 .53 .02
16.00 30.01 .49
7-2-12 Revised 04/11/88