REP40099

• Permit No: C1981025
• IBM Index Class Name: Report
• Doc Date: 1/27/1997
• Doc Name: 1995-1996 ANNUAL HYDROLOGIC REPORT
• Annual Report Year: 1995
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

• GRAND VALLEY COAL COMI'ANY
P.O. Box 70
Loma, Colorado 81524-0070
[phone] FAX [phone]
January 16, 1997
Mr. Dan Mathews
Division Of Mmerals & Geology
2148 Broadway; #C-5
Grand Junction, Co 81503
Re: 1996 Annual Hydrologic Report
Munger And Mcclane Canyon Mines
Dear Mr. Mathews;
This report on the mine inflows, discharges and probable hydrologic consequences for the
next year is submitted in compliance with the stipulations of the Mining and Reclamation permits
• for the mines noted above. The stipulations require a report for each permit. Since the mines are
in close proximity, the effects can be combined; therefore, two copies of this single report
detailing the cumulative effects are provided. Both of the mines were idle during the 1996 water
yeaz.
This report shall first discuss the effect of Mcclane Canyon Mine on the hydrologic regime,
next discuss the effect of Munger Canyon Mine, then give an overview of the surface water
system and groundwater monitoring. This report shall conclude with a discussion of the
cumulative effect of both mines on the hydrology of East Salt Creek.
McCLHNE CBNYON MINE
Mine History And Production
The Mcclane Canyon Mine began production in 1977. The mine ceased production later that
year when a fault was encountered. The mine remained idle until 1980. From 1977 through 1982
the mine produced a total of 184,365 tons of coal. In 1483 the mine was idled and remained
under Division approved temporary cessation until November 1988. In December of 1988; 3,995
tons of coal were mined. In 1489; 125,200 tons of coal were produced. Production during ] 990
totaled 208,945 tons. Production for 1991 totaled 194,000 tons of coal. ] 992 Production was
7,914 tons. No coal has been produced since ]992.
As required by stipulations, amine map for Mcclane Canyon showing important hydrologic
features is included as Figure 3. Nobody has been in the mine during 1996: therefore, no
hydrologic features are noted. In response to comments made by the Division regarding the 1995
• annual hydrologic report, Figure 1 -Water Sampling Locations, has been added. Figure 1 is a
line diagram of the drainages and water sampling locations that was derived from Figure 4.2-2 of
the Mcclane Canyon Mine permit.