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provide a weed control plan to he implemented in the event of a noxious weed problem <br />on site. This plan should be dca•eloped in consultation with the county extension <br />agency, or weed control district olTice, and should include specific control measures to <br />he applied, a schedule of when the control measures will be applied, artd a post-spray <br />monitoring plan. FULLY ADDRESSEiD <br />Rule b.~l.l2 f'xhibn 1.- Reclamation Costs <br />23. Since ground water is already exposed in these pits, the Operator will not be eligible <br />for the 20 percent slurry wall bonding option until after dtc slurry wall is installed. A <br />It)0 perccnl slurry wall bond will be rcyuircd upon approval of the amendment. <br />Pursuit of the 20 percent option may not provide a significant financial advantage, <br />depending on the timing of the leakage rate test to be conducted following installation <br />of the slurry wall. If the; Clperator anticipates lag time between construction of the <br />slum wall and conduct of the leak test (note that a minimum 90-day leak test term is <br />reyuirrd by the State Engineer) it may be advisable to reduce the bond during the lag <br />period. Bear in mind that once the leak test is completed, and the State Engineer has <br />accepted the results, DMG will release the slurry wall bond in its entirety. Unless the <br />(~terator chooses to pursue the 20 perccnl option, rotatively minimal design <br />infomtation, specifications, and yuality assurance detail is rcyuired in this amendment <br />application. To he eligible for the 2O pcrccm bonding option tollowing slurn• wall <br />installation, DMG must have a high degree of assurance that the slurry wall will meet <br />the State Engineer's perforntunec standard. This assurance is provided through <br />inclusion of design documents, pl:uts and specilications, and a yuality assurance <br />program as enforceable components of the reclamation perntit. "fhe factors that must <br />he addressed in the reclamation plan include the design of the slurry wall (including <br />constntction plaits and appropriate drawings), technical specifications, Constrnction <br />yuality con[roUconstruction yuality assurance (C'QA) and a final consWction report <br />including the CQA Engineer's certification. FULLY ADDRC-SSED <br />Itulc (~ 4_I_3 Fxh_ihit_\1- Other t'ertnit and Li~cnscs <br />2~1. Please inlomt the Diaision if the fitlloaa•ing pcmtits arc necessary: r\ir Pollutant <br />Emission Notice (APEN) and Storm ~t:'atcr Management Pcmtit ISW'MP) through <br />Colorado Department of Public Health and the Environment (C'DPI1P.1. If these pcmtits <br />arc necessary, please revise Eixhihit ~1. FI;I.LI' .ADDRI{SSI•:D <br />Kole h.d. I ~) Exhibit S- Pcrntanent Man-made Structures <br />?5. It appears that the constntction of a slurry acall around the Stegrist Cunstntction ponds <br />will cross a number of gus~'oil lines on the properly. The operator aoill need to <br />demonstrate that such gus:'oil lines will be stable w iQt Qtc construction of the proposed <br />slurry walls in the titan of un engineering evaluation, or provide a notaritcxl agreement <br />from the owners of the structures and Sicgrist constntction Company that ntcets the <br />rcyuircments of Rulc G.~4.19 and Section ?4-?25-11~(~3)(c), ('.R.S. Please he aware <br />that if any of the gas oil lines need to be relocated as a result of the mining and <br />reclamation operation, then a notarized agreement bchveen the operator and the owner <br />