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HYDRO23152
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HYDRO23152
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Entry Properties
Last modified
8/24/2016 8:43:47 PM
Creation date
11/20/2007 3:33:35 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Hydrology
Doc Date
4/9/1992
Doc Name
1ST QUARTER 1992 INSPECTIONS
From
TRAPPER MINING INC
To
MLRD
Permit Index Doc Type
SEDIMENT POND INSPECTIONS
Media Type
D
Archive
No
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• <br />TRAPPER DINING INC. <br />~~C~~~~~ <br />Apri13, 1992 <br />CERTIFIED #P568141855 <br />Mr. Kent Gorham <br />Colorado Mined Land Reclamation Division <br />215 Centennial Bldg. <br />1313 Sherman St. <br />Denver, CO 80203 <br />Dear Kene <br />• iii iiiiiiiiiiiuiii <br />999 <br />aPR 9 1997 <br />RBn/a aid hand' <br />Re: Trapper Mine First Quarter (1992) Sediment Pond Inspection Report <br />Trapper's first quarter sediment pond inspection reports for 1942 are attached. All storm and snowmelt <br />runoff has passed without incident. All dams have functioned as designed. <br />All dams having the culvert principal spillway design (Johnson #6, Johnson #10, No Name #2, and No <br />Name #4) are functioning properly and show no evidence of piping. Additionally, there are no other struc- <br />tural orerosional problems to report. <br />In accordance with Colorado regulation 4.05.6(13), all sedimentation ponds shall be examined by a qualified <br />registered professional engineer or other qualified individual under their direction. Indeed all ponds were <br />inspected by a competent, qualified impoundment inspector and the results of his inspection findings have <br />been reviewed by me. <br />All problems concerning the ice buildup in Johnson Gulch Dam #6 have been corrected. There have been <br />no discharges other than as designed through the siphon system. The overall hazard potential for all struc- <br />tures is 111E (MSI-IA) - meaning a minimal possbiliry of failure, and the low potential for injury and/or loss <br />of property if a failure should occur. <br />Please call Bill Agnew or me if you have any questions or concerns. <br />Sincerety, <br />times M. Marrero <br />Chief Engineer (P.E.) <br />WSFi/w~b <br />[CMLRD\APR03J <br />Enclosure <br />(w/o encl) <br />W new <br />W.S. arding <br />B.D. Nicholson <br />Ble <br />P.O. Box 187 Craig, Colorado 81626 (303) 824-4401 <br />
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