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BOWIE RESOURCES LIMITED <br />SEDIMENT POND W-1 & W-2 CERTIFICATION <br />In accordance with Rule 4.05.9(14), each impoundment will be inspected during <br />construction under the supervision of, and certified after construction by, a qualified <br />registered professional engineer. This certification is for the construction of Sediment <br />Ponds W-1 and W-2 at the Bowie No. 1 West Mine. The ponds were constructed during <br />April and May 2002. <br />The construction of the impoundments was supervised by the undersigned and L. K. <br />Jewkes, an EIT and Colorado School of Mines graduate, who works under my supervision. <br />We both have a wide variety of experience in the construction industry and have <br />supervised the construction of numerous impoundments. <br />The ponds were dry during the final inspection performed May 15, 2002. Nothing was <br />observed during the inspection that would indicate the ponds have a potential for failure. <br />There was no appearance of erosion, instability, structural weakness or other hazardous <br />conditions. There are no aspects which might affect stability and there is no required <br />maintenance. Monitoring procedures include quarterly and yearly inspections. <br />SEDIMENT POND CAPACITIES -ACRE FEET <br /> Pond W-1 Pond W-2 <br /> As-Built Required As-Built Required <br />Water 0.54 0.48 0.67 0.48 <br />Sediment 0.25 0.14 0.38 0.28 <br />Total 0.79 0.62 1.05 0.76 <br />The design of ponds W-1 and W-2 are shown on Maps 8A-17 and 8A-18 respectively. The <br />design calculations for the ponds are contained in Volume 8A, Tab Pond Volumes, Pages <br />W-1 through W-14. To the best of my knowledge and belief, sediment ponds W-1 and W- <br />2 were constructed in accordance with the approved plan. <br />A~AV. <br />""p0 RED <br />.o~, <br />~~'~ ~ <br />Z9 0 <br />Date <br />Engineer <br />,,., <br />%NAL <br />e~~" <br />\WP60UES\CERT-WS-BR1 <br />