HYDRO29441

• Permit No: C1981025
• IBM Index Class Name: Hydrology
• Doc Date: 1/9/1987
• Doc Name: 1986 ANNUAL HYDROLOGIC REPORT FN C-025-81
• From: SNOWMASS COAL CO
• To: MLR
• Permit Index Doc Type: OTHER GROUND WATER
• Media Type: D
• Archive: No

MONTNLY FIELD PARAMETERS
NOLE N0. 1
' Water TEMP CONDUCTIVITY
DATE Level pfl °C) @ 25°C (µmhos/cm)
' 10/23/85 100.7 7.0 12.6 2000
11/18/85 100.5 7.0 9.8 4500
1
12/6/85 100.9 7.0 10.2 5000
1/16/86 108.3 7.1 9.8 4500
Sampling reduced to annual water level and quality by TR-O1.
Destroyed while dismantlin g surface structures.
HOLE N0. 3

Water TEMP CONDUCTIVITY
DATE Level pH (°C @ 25°C (µmhos/cm)
' 10/23/85 47.6 4.5 8.5 900
' 11/18/85 34.8 8.7 6.3 450
12/6/85 27.5 8.9 5.1 460
' 1/16/86 34.5 B.5 5.5 450
Sampling reduced to annual water level and quality by TR-O1
' 8/86 sampling returned to monthly water level and field due to mine filling.
7!16!86 28.8 9.4 11 347
'
9/18/86 28.0 9.4 490
' HOLE N0. 4
Water TEMP CONDUCTIVITY
DATE Level PN (°C) @ 25°C (µmhos/cm)

10/23/85 30.8 9.6 8.8 450
11/18/85 42.8 7.1 7.0 750
12/6/85 43.2 7.0 6.3 900
1/16/86 48.1 7.1 6.0 1000
Sampling reduced to annual water level and quality by TR-O1
8/86 Sampling returned to monthly water level and field due to mine filling
' 7/16/86 44.4 7.3 ~ 11 640
9/18/86 46.0 7.1 1080
,~