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1987-12-01_PERMIT FILE - C1981017 (176)
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1987-12-01_PERMIT FILE - C1981017 (176)
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Last modified
1/4/2021 2:48:25 AM
Creation date
5/23/2008 11:10:06 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
PERMIT FILE
Doc Date
12/1/1987
Doc Name
Hydrology Description
Section_Exhibit Name
Chapter III Section E
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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The impacts of this sediment loading are partially mitigated <br /> by the fact that high rates of erosion off haul roads only occur <br /> during the high flow seasons of the surface water system where <br /> background levels of sediment loading are already elevated by the <br /> erosion of the naturally occurring Mancos Shale slopes. Due to <br /> this coincidence of high flow and high suspended solids generation <br /> both off the natural areas and haul roads, no significant impact <br /> to the hydrologic system is expected. <br /> The Findings Document for our. Permit (1982) , Stipulation No. <br /> 12 addresses the TSS of the road system. Seven samples were <br /> taken along the roads in 1982/83 and a report made to Jim Herron, <br /> Mined Land Reclamation. Division (12/23/82) . Jim Herron analyzed <br /> the data, reviewed other information, and summarized a .report in <br /> a letter of February 17, 1984. This road is also constantly <br /> plowed, graded, repaired and watered to maintain its surface. <br /> All of this activity will cease by the end of 1986 when the <br /> tunnel is completed to Nos. 1 and 2 mines. The roads will only <br /> be partially cleared in the winter (50% width) and partial. reclamation <br /> will begin in 1987. The activity level will drop to a light use <br /> road for inspection, maintenance and repair use only. The actual <br /> disturbance to the road surface would decrease by approximately <br /> 80 to 90 percent. <br /> Mine Discharges <br /> In 1980 five separate mines were operating in Coal Basin. <br /> Each of these mines discharged excess ground water, not used for <br /> dust suppression, etc. (generally in spring) to the outside or to <br /> adjoining streams (NPDES permits 002 thru 005 and 019) . <br /> 49 <br />
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