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HYDRO31308
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Entry Properties
Last modified
8/24/2016 8:55:04 PM
Creation date
11/21/2007 1:29:53 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Hydrology
Doc Date
10/16/1987
Doc Name
DAM CONSTRUCTION CERTIFICATION
Permit Index Doc Type
PROF POND CERTIFICATIONS
Media Type
D
Archive
No
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• <br />Trapper Mining Inc. <br />Gaig, Colorado <br />DAM CONSTRUCTION CERTIFICATION <br />I, Collin R. Fay, a Registered Professional Engineer in the State of Colorado, in ac- <br />cordance with 2 CCR 407-2, Section 4.05.6(7), certify that West Buzzard Dam No. 2, <br />located in Section 29, T 6 N, R 91 W, 6th PM, was inspected by me during construc- <br />tion. Construction of this dam was begun on July 21, 1987, and completed on Sep- <br />tember 12, 1987. I certify that the embankment and spillway were built as designed <br />and the resulting West Buzzard sedimentation system will meet effluent limitations as <br />predicted by hydrologic modelling techniques. <br />During construction, this dam was visually inspected daily to insure compliance with <br />prudent construction methods. Compaction was accomplished by laying fill material <br />in thin horizontal layers and compacting with a vibratory roller compactor, a dozer, <br />and/or scrapers. Standard Proctor densities were determined in our lab using <br />methods outlined in AASHO Standard Method T99-61. Compacted density and mois- <br />ture content of the placed fill material was monitored using a nuclear density probe to <br />ensure adequate compaction. /~/// <br />oo~~o°m ~~~sP° <br />oc°~~~~Q\cHA~~~~,~~a° Collin R. Fay, Colorado PEN .22438 <br />o v a <br />0 0~ rr~~ ^^pp ~m 0 <br />~oL3p <br />Ouo°U 264J0 IDa <br />o r^~ ° v'~4.0 <br />°°ors °°°°°.°°°~~~o ° Date <br />o~ory oaa~°' <br />
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