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<br />::,ilNcn LA~~D Rcrt naa ~rvn.,1 -.1v~cL~A <br />1 LL 1 LVL111111'11.V11 ir1II,..:I V11 <br />Deoartmern of Natural Resources <br />1313 Sherman SI . Roam 215 <br />Denver. CO 80203 <br />3u3 B66 356. <br />rnx. 303 .9328106 <br />~I I I I~ ~ I~ I II ~I~~ ~I~ ^ <br />999 ~--~ ! 1 ~ ,--, \ ~J.J C <br />J t[ l 1 LI l~i ~, v LI lil i <br />~~;~o <br />~~'/ yYS.~1\9 <br />IT o <br />.~.. ~' <br />.~_i' <br />1896 ~ <br />Roy Romer. <br />Governor <br />August 4, 1992 <br />Michael B. Long, <br />Division Director <br />Mr. Robert Williams <br />Harrison-Western Corporation <br />4860 Robb St., Suite 101 <br />',Jheat Ridge, CO 80033 <br />RE: Transmittal of Inspection Repcrts and Compliance Agreement, G.E.C. Mine, <br />?ermit No. C-81-037 <br />Dear Mr. Williams: <br />I am enclosing three inspection reports `.written at the G.E.C. site during the <br />month of July. The July 1, 1992, inspection report and accompanying exhibits <br />describes the results or vegetation ?fforts adjacent to the new diversion <br />ditch. The July 16, 1992, inspection report evaluates compliance with <br />paragrapns 22 and 23 of the April 2=, 1992, Compliance Agreeme.^.L. <br />The July 28, 1992, insp?ction repot describes the functioning of the newly <br />constructed and maintained surface water drainage system following PNO mild <br />precipitation events. <br />There is still work to be done to achieve the objectives described in <br />paragraphs 22 and 23 of the Compliance Aer?ement. The minimum compiianc? <br />requirements are spelled out in the July 16, 1992 inspection report. The <br />follcwing summary elaborates on some fine-_uning which could be performed to <br />ma;<e th? ?nd products better since `/cu Will need to re-mcbiliz? equipment <br />any'.Yay. <br />The pcnd needs to be dredg?d further IO achi?v? adequate storaD? volume for a <br />1C-/ear 2a-hcur event per Item 22C. .",.: nos indicated that the <br />Jack-O-Lantern Underground Mine uncerlies Lhe pond. It may be safer Lo <br />e:<cavate the breadth of the pond to a greater extent than the depth of the <br />pond. In additon, the primary discharge 1ni?t needs to be found and opened <br />up. You may find it financially expedienC Lo p2rf,;rm and submit a survey of <br />the finished product t0 minlmiZ? an aC~ir'0.^3i re-CCCUrr?nCe Of fOUr <br />mOb111Z3tlOn COS LS. <br />The d1Ver51pn tYenCh Yld; nGt built Ih~'•~'!Jgn.:Ut ~t; le^.g th t0 design <br />specifications. The original de;i~rs ra l?d fCr a trapezoidal ditch With an <br />a' ~OOttOnl `.width, Z:1 sld2 SIOC2S ~.=" :c 2q. Ti12 r? are at led;t twO p1dC?5 <br />'Nhere the depth wd5 nOt 3Cnie`/ed dU? "0 pCG' Oldr_'menC Of rip-rdp and <br />inadequate material being available f;r Le ber:~~. This ditch design was based <br />on „a ter generated from a 300-acre ;/a-er;;,2d channel flowing at a 77 grade. <br />~iC'Ne'/er, the actual grade, as describ?~ `~% `%e pill/92 report, is 1 The <br />phy;ic31 1dWS Of hydr3U11CS indiC3 t? L'ndi =`O'de r' fi^'NS dre de?poi' flOwS. <br />~ollewing Mr. Gomez' decar'r.;r'2 from L.'.? si-2, _ r2-T,od?11?d the drainage and <br />'JUnd tn3t th°_ dl rCh deOCn ih~: i~l~; C' 'I ~i'"`.~ l.?' :;2°_ 3ttdChed <br />C31CU13ClOnS~. <br />