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INSPEC38280
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INSPEC38280
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Last modified
8/24/2016 9:43:26 PM
Creation date
11/18/2007 11:05:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Inspection
Doc Date
11/14/1996
Doc Name
SPECIAL FOCUS INSPECTION ISSUES AT TRAPPER MINE TRAPPER MINE PN C-81-010 TRAPPER MINING INC
From
DMG
To
TRAPPER MINE
Media Type
D
Archive
No
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gage depth reading of .20 feet, `or 2.4 inches. <br />The second set of information had been obtained from the <br />manufacturer at the request of the operator. The information <br />professes that the flume can be read to a flow depth of .25 <br />inches, equating to a flow of .O1 cfs, or 4.48 gpm. No <br />information is given on accuracy. Trapper stated that the <br />original source of this flume flow information may have come <br />from SCS. Both the Division and Trapper are continuing to <br />research this issue to ensure that the operator is using the <br />appropriate equipment. <br />13. OSM stated that it's position on water quality compliance is <br />that the point of compliance for all water quality standards <br />would be where the water flow leaves the disturbed area. The <br />Division stated that it's position is that NPDES standards <br />apply where the water flow leaves the disturbed area, and at <br />a defined point source. Material damage assessments are made <br />using receiving stream standards, and usually after dilution <br />with the stream, in this case, the Yampa River. <br />14. OSM believed that "dozer basins" need to be permitted. <br />According to OSM, the permitting requirements would follow the <br />August 8, 1996 memorandum from Russell Price of the OSM <br />Western Support Center to the OSM Albuquerque field office. <br />On September 17, 1996, the Division sent a letter to Trapper, <br />requesting that a technical revision be submitted by October <br />15, 1996 which addresses the permitting of "dozer basins" in <br />accordance with the above-mentioned memorandum. Trapper has <br />submitted this technical revision by the requested date and <br />the Division is currently reviewing the submittal. <br />15. OSM commented that one small gully across the light use road <br />leading to the Ute pond needs attention. Although the gully <br />was small, the Division asked Trapper to blade the gully <br />before it became a problem. Trapper has stated since then that <br />the gully has been bladed. <br />16. After sediment cleaning at the Elk pond, a small peninsula of <br />sediment remained. OSM believed that better access for <br />equipment may need to be provided in order to completely <br />remove pond sediment. Trapper responded that the access had <br />been blocked by a fence and that Trapper was going to finish <br />the pond cleaning next year. <br />The Division believes that this OSM recommendation is valid. <br />However, it should be noted that this, and the one at the East <br />Pyeatt pond No. 1, are the only such occurrences of a small <br />amount of sediment remaining after pond cleaning that have <br />been observed by the Division. In spite of the remaining <br />sediment, the Elk pond and the East Pyeatt pond No. 1 still <br />7 <br />
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