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 15-3. General Well Construction Schematic (not to
scale) for Overburden-and Alluvial Monitoring
Wells Drilled During 1986*, Nucla and Nucla
East Mines, Montrose County, Colorado
End cap (vented)
a
\\RN
Cement (type II)
• Medium Sand
on top of gravel
•. 4"i d pvc' sch 40
bellend
•:•• 4 6 3/4" bore hole
. •. • • ..
Alluvium or . .= 0.02 or 0.05 mill-
•• •. �
Dakota Coal 4 — ►.•.' slot 4"id pvc sch
Overburden •;:•. - 40 throughout sat-
•;.•• urated zone
o• •'' _ •� • <3/8" pea gravel
.•;' = . ' wi thin 5' of ground
41•:•; .= surface
.• ••
Bottom cap
* Schematic is pertinent to wells GW-N15, G14-
N18, GW-N18P1, GW-N21, GI-I-N22
15-15 Revised 04/11/88