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
line Nucia East Page 1 / 3
State Colorado County Montrose Well No. GW-N22
Personnel Hansen / Koffier T. 46 N. ,R. 16 E' , Sec. I NE,SE
S. W.
Test Type Singie well drawdown
Total Well Depth 25.0 ft. Well Diameter 7 7/8 in. Casing Diameter 4.0 in.
Casing Type PVC Type of Screen or Perforation Mil-Slot
Interval of Screen or Perforation 4.0 - 25.0
Aquifer Alluvium Aquifer Litho ogy and and Silt
Altitude of Land Surface 5604. u How Determined Surveyed
SWL ft. 8.44 How Measured E ectric Water Level Indictator
Date Time Depth to Time Since Time Since S ft. S' ft.
Water Level Pump On Pymp Off Unadjusted Adjusted
Feet Below t, min. t min. Drawdown Drawdow2
M.P. S'=S-(S /2m)
m= 16.56
11-17-87 1500:00 6.44 0 0 0
8.74 .22 .30 .30
9.21 .72 .77 .75
10.61 1 .07 2. 17 2.03
10.67 1 .33 2.23 2.08
10.82 1 .67 2.36 2.21
lU.9Es 2.00 2.54 2.34
11 .22 2.50 2.78 2.55
il . 70 3.00 3.26 2.94
12.34 3.50 3.90 3.44
13.56 4.00 5. 12 4.33
14.64 4.50 6.20 5.04
15.38 5.00 6.94 5.49
16.05 5.50 7.61 5.zs6
i7.011 6.00 6.57 6.35
17.08 6.50 8.64 6.39
17.43 i .00 8.99 6.55
17.67 7.50 9.23 6.66)
17.89 8.00 9.45 6.i5
8.09 6.50 9.65 6.84
18.33 9.00 9.89 6.94
18.46 9.30 10.02 6.99
18.59 10.00 1 10. 15 7.04
18.69 10.30 '10.25 7.Oci
7-2-1 Revised 04/11 /88