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• <br />TRAPPER MINING INC. <br />CRAIG, COLORADO <br />DAM CONSTRUCTION CERTIFICATION <br />East Middle Flume Dam <br />I, James M. Mattem, a Registered Professional Engineer in the State of Colorado, in <br />accordance with 2CCR407-2, Section 4.05.6(7), certify that East Middle Flume Dam <br />was constructed under my direct supervision. Construction activities commenced with <br />brushing on August 6, 1999 and ended with a fmal survey of the spillway and outflow <br />channel on October 27, 1999. <br />During construction, the site was inspected to insure conformance with prudent <br />embankment construction methods. An as-built survey is the basis for results shown on <br />the attached SEDCAD3 output. As-built model results and construction methods meet all <br />the requirements of Section 4.05.6. <br />• <br />~ v <br />~ames M. Mattem <br />CO PE 20537 <br />~ o S /Oc~ <br />Date <br />• <br />Rr_r;sicr: n+rL-~~5 <br />/.pprovcd: <br />