1988-04-11_PERMIT FILE - C1981008A ‎(21)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Hydrologic Monitoring Program
• Section_Exhibit Name: Tab 15
• Media Type: D
• Archive: Yes

Figure ,15-4 General Well Construction Schematic (not to
scale) for Dakota Coal and Dakota Coal Under-
burden Wells Drilled During 1986*, Nucla and
Nucla East Mines, Montrose County, Colorado
4—End cap (vented)
.Around Sur c
Cement (Type II)
from 5' to ground
surface • -•
'4"id pvc sch 40 bellend
Bentonite Slurry
s'
•
7 7/8" Bore hole
Cement (Type V)
Cement Basket (Steel )
Bentonite pellets (Volclay)
Rubber packer
6 3/4" or 7 7/8" Bore hole
Dakota Coal =or Dakota within completion interval
•
Coal Under- = 0.02 or 0.05 mill slot 4" id
burden pvc sch 40 within completion
'— interval
Open annulus
End Cap
*Schematic is pertinent to wells GU-N13,
G14-N14, GW-N16, GW-N16P1, GW-N17, GW-N17P1,
GW-N19, and G41-N20 15_16 Revised 04/11/88