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c _ <br />• ~E <br />~. o. eox , oe :: <br />ouwow, tc[rrructtr axtat <br />wueet•ruo <br /> <br />AMERICAN ENGINEERS, INC. <br />MMlDiIO1ML FH61N[R7N10 <br />April 28, 1984 <br />Mined Land Reclamation <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />RE: Trinidad Basin Mining <br />MLR File C-048-81 <br />ATTN: Mike Savage <br />Gentlemen: <br />We hereby re-certify Sediment Pond 15-P10 which was <br />inadvertantly certified with a different principal and <br />emergency spillway configuration than that which was <br />designed. <br />This structure appeared to be somewhat smaller than <br />the design, however with proper= cleanout and maintenance <br />by the operator, it should not adversely affect the operation. <br />The use of contemporaneous reclamation practice in the <br />area above the structure will reduce the amount of runoff <br />volume. <br />The location is as shown on the revised Sediment <br />Control Map previously submitted. <br />Yours very truly <br />AN ENGII~j~ER~, INC. <br />P.E. <br />BTQ/dn <br />