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<br />Trapper Mining Inc. <br />Geig, 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 />1R, 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. t 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 corneni of the placed fill material was monitored using a nuclear density probe to <br />ensure adequate compaction. <br />e~PpO REg s. <br />e~ ~.\~,"~`' ' oso;`oe Collin R. Fay, Colora o. 2438 <br />_~ Z, <br />~ •J T~ <br />4 <br />*:~ 22aaa '~ <br />a• ~•~' <br />9A i <br />• ~ Ocro.ISEA /G, / 987 <br />~'~ ; ~ QO <br />•O~, •~ ~i ~WV <br />. f ••,..•.,.,. ~~ a Date <br />° eJ~~ N YL: N, a <br />