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REP06139
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REP06139
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Last modified
8/24/2016 11:36:45 PM
Creation date
11/26/2007 11:16:14 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981023
IBM Index Class Name
Report
Doc Date
3/21/1991
Doc Name
1990 HYDROLOGIC MONITORING ANNUAL REPORT
Annual Report Year
1990
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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Introduction <br /> <br />In October 1980, Chimney Rock Coal began a hydrologic sampling program. The program involves <br />sampling the various chemical and physical constituenu at numerous surface and ground water stations. The <br />mine site is located approximately 20 miles southwest of Pagosa Springs, Colorado on Highway 151. The mine <br />facilities are situated adjacent to Stollsteimer Creek which is a perennial stream draining the area. <br />Stollsteimer Creek flows to the southwest into the Piedra River which is a tributary of the San Juan and <br />Colorado Rivers, respectively. <br />The objectives of this program are designed to gather information on both surface and ground water <br />regimes and to assess the impacu of mining and reclamation activities on the existing hydrologic balance. To <br />this end, quarterly samplings have been conducted to assess surface water flow and ground water movement. <br />Water chemistry has also been analyzed on a quarterly basis at both surface and ground water stations. <br />Mining activities have been suspended at the site since 1985 and the mine has been in temporary cessation. <br />In 1990, Kaiser began Cinal reclamation of the surface facilities area and Revision 1 pit area. This activity is <br />proposed to be completed during 1991, at which time all facilities associated with mining (except sediment <br />control structures) will be removed and all disturbed lands will be reclaimed. <br />Sampling locations which have been utilized during the program are described below: <br />S-1 Surface water station located on Stollsteimer Creek 1/4 mile above the mine facilities. The <br />station was selected to assess baseline conditions of stream quality and flow above mining <br />facilities. <br />S-2 Surface water station located on Stollsteimer Creek below the surface facilities and mining <br />activities conducted on the Barren Ridge Area and above the inlet of the sedimentation ponds <br />which control site runoff from the Revision Area No.l. The station was selected to assess effecu <br />of surface operations on stream quality and now. <br />S-3 Surface water station located on Stollsteimer Creek one mile below all mining activities. The <br />station was selected to assess the overall effects of mining on stream quality and Oow. <br />DC•1 Deep Creek surface water station located on Deep Creek at Highway 151. The station was <br />selected to assess overall effects of mining in Revision Area No. 2 located in the Deep Creek <br />drainage. <br />A-I Alluvial ground water well located adjacent to Stollsteimer Creek below the surface facilities and <br />the Barren Ridge area. The site has been monitored to assess effects of mining the Barren Ridge <br />area. This well is adjacent to surface water station S-2. <br />W-t Alluvial ground water well located adjacent to Stollsteimer Creek above [he mine facilities. This <br />station was selected to assess alluvial baseline conditions. <br />
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