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r <br />TRAPPER MINING INC. <br />CRAIG, COLORADO <br />DAM CONSTRUCTION CERTIFICATION <br /> <br />I, James M. Mattern, a Registered Pro[essional Engineer in the Srate of Colorado, in aceordance 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 construction 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. 1-he attached output from Sedimot accurately describes the stage- <br />storage relationships and modelled hydrologic performance of West Pyeatt Dam No. 1. <br />M. <br />' +°" '0oy ames M. Matlern~ <br />~ lorado PE No. 20537 <br />$ 20537 <br />u+ o W tO <br />a r• <br />9 Fso +p~.'40 3// / <br />\ccNAIE o-P //2~5~ <br />o,. _ . o <br />Date <br />~~. <br />]MM/mg(1-23-92 <br />ENG/DAM-WPDI <br />