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2008-07-29_PERMIT FILE - C1981010A (12)
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2008-07-29_PERMIT FILE - C1981010A (12)
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Last modified
9/15/2016 7:45:10 AM
Creation date
2/5/2009 11:11:14 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981010A
IBM Index Class Name
Permit File
Doc Date
7/29/2008
Doc Name
Dam Construction Certifications
Section_Exhibit Name
Appendix Q Section XVI
Media Type
D
Archive
Yes
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•` Trapper Mining Inc. <br />Craig, 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 East Buzzard Dam No. <br />1 R, located in Section 32, T 6 N, R 91 W, 6th PM, was inspected by me during con- <br />struction. This reconstruction of Buzzard Dam No. 1 was begun on June 2, 1987, <br />and completed on September 12, 1987. I certify that the embankment and spillway <br />were built as designed and the resulting East Buzzard sedimentation system will meet <br />effluent limitations as 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 />t <br />e o`~ `a~i~~Hd.f~~Jp•`~` Collin R. Fay, Colora o o. 2438 <br />" <br />~'N T. <br />on:~ 22aaa <;*: <br />~-~ : ' OGr-o.z3ER <br />°.f'J'''• .... ••~~~0 Date <br />°~o~~A~roi~' <br />i <br />
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