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<br />TRAPPER MINING INC. <br />CRAIG, COLORADO <br />DAM CONSTRUCTION CERTIFICATION <br />I, James M. Mattern, a Registered Professional Engineer in the State of Colorado, in accordance with <br />2CCR407-2, Section 4.05.6(7), certify that West Pyeatt Dam No. 1 was inspected by me during construction. <br />Construction activities commenced on May 5, 1992 and were completed on June 19, 1992. <br />During construction, the dam was inspected daily to insure compliance with prudent wnstruction methods. <br />Compaction was accomplished by laying fill material in thin layers with scrapers and compacting with a Rex <br />compactor working with a water truck. The attached output from Sedimot accurately describes the stage- <br />storage relauc.~sitips and modelled hydrologic performance of West Pyeatt Dam No. 1. <br />M. <br />' ~'+°" '0b SZ ames M. Mattern' <br />lorado PE No. 20537 <br />S <br />z 20537 W; <br />a ;° i : O <br />9 %mo ?v`.` O <br />.NN~c ~ <br />OF COVO <br />7/2~14'L <br />Date <br />JMM/mgR-23-92 <br />ENG/DAM-WPDI <br />