HYDRO27867

• Permit No: C1981047
• IBM Index Class Name: Hydrology
• Doc Date: 8/8/1988
• Doc Name: SEMI ANNUAL BENCH HYDROLOGIC MONITORING PERMIT C-81-047
• From: BLUE RIBBON COAL CO
• To: MLRD
• Permit Index Doc Type: OTHER GROUND WATER
• Media Type: D
• Archive: No

iii iiiiiiiiiiiu iii
999
blue
cnb~bon
1 company
blue ribbon coal company
p.o. box 1352
palisade, Colorado 81526
[phone]
August 4, 1988
Susan J. Mowry
Mined Land Reclamation Division
215 Centennial Building
1313 Sherman Street
Denver, Colorado 80203-2273
Re: Semiannual Bench Hydrologic Monitoring
Permit C-81-047
Dear Susan:

BUG 8 1988
l~:.~....:1ATIOt~1 Ditr:
The follow is the results of hrdrologic monitoring on the res-
tabilized mine bench for the first and second quarter of 1988:
RHSTABILIZfiD BBNCH UNDBRDRAINS
NORTH MIDDLfi SOUTH
Date 3-11-88 3-11-88 3-11-88
Flow (gpm) 0.2 0.04 0.3
Ph 7.8 7.4 7.3
Conductivity 1600 1010 2980
Temperature 3~C 1~C 5~C
Date 6-24-88 6-24-88 6-24-88
Flow (gpm) 0.01 Dry Trickle
Ph 8.2 --- ---
Cohductivity 2300 --- ---
Temperature 26~C --- ---
BBNCH PIfiZOMBTBRS
P-1 P-2 P-3 P-4
Date 3-11-88 3-11-88 3-11-88 3-11-88
Depth to Water 10.4 Dry 36.7 28.3
Date 6-24-88 6-24-88 6-24-88 6-24-88
Depth to Water 15.5 48.2 48.0 27.9