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<br />• TRAPPER MINING INC. <br />CRAIG, COLORADO <br />DAM CONSTRUCTION CERTIFICATION <br />I, Mark W. Wehmanen, a Registered Professional Engineer in the State of Colorado, in <br />accordance with 2CCR407-2, Section 4.05.6(7), certify that Grouse Dam No. 1 was inspected by <br />me during construction. Construction activities commenced on July 21, 1993 and were completed <br />on September 10,1993. <br />During construction, the dam was inspected daily to insure compliance with prudent construction <br />methods. Compaction was accomplished by laying fill material in thin layers with scrapers. A <br />water truck and Cat 815 compactor were used for moisture and compaction. Compaction and <br />moisture content were monitored using a nuclear density gauge. Standard Proctor density was <br />determined in our lab in accordance with AASHO Standard method T99-61. The dam was <br />constructed as designed. <br />• <br />~,pO.RE~~ Mark W. Wehmanen <br />p~~:;a. we s~F lorado PE No. 25518 <br />25518 <br />:`~ io/x/93 <br />M W W/mg/7-?3-93 <br />ENG/DAMCR7MW <br />• <br />