Laserfiche WebLink
-~~ • 111 lllllllllllll 111 • <br />POWDERFIORN COAL COMPANY <br />POND NO. 4 - CAMEO NO. 1 MINE <br />CERTIFICATION <br />I, Larry M. Reschke, PE 19691, hereby certify that Pond No. 4 <br />located at Powderhorn Coal Company's Cameo No. 1 Mine meets or <br />exceeds the design requirements of plans submitted to and <br />approved by Colorado Mined Land Reclamation Division in Appendix <br />X, Volume 3; Exhibit 21, Volume 5; and Appendix WW, Volume 7 of <br />Powderhorn permit application No. C-81-041. The pond was <br />installed in 1979 and included a combination primary and <br />emergency spillway. The pond does not match the proposed <br />dimensions, but does exceed the design volumes. The attached <br />diagram shows the plan view of the pond below the emergency <br />spillway and shows the volumes of the pond. These as-built <br />dimensions were taken from a survey taken June 21, 1988, and do <br />not reflect sediment accumulated since that time. This <br />certification is a follow up to work done in November and <br />December, 1991 to establish separate emergency and primary <br />spillways. A 6" PVC primary spillway was installed with an 18" <br />ADS plastic oil skimmer/trash rack at that time. <br />4~n 9F.^i (: ~f: . <br />9 <br />+~y~~~. ~ti.F,~fh t<. ~. <br />.~ <br />i~ 1~1 m';~u~, 7E <br />~' 1~1' `f <br />'~,a~ <br />~'~ f~rbF~a~_:~ <br />