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Loloff AM -01 Adequacy Letter <br />Page 3 of 4 <br />May 19, 2015 <br />11. Please provide a Noxious Weed Management Plan with the following information: <br />a. A list of potential noxious weed species (target species). <br />b. The control methods and treatment window for each target species. <br />C. A monitoring plan and follow-up plan for the site (i.e. when the "local weed control <br />expert" will inspect the property during the year and how follow-up treatments will <br />be implemented following the inspection.) <br />6.4.7 Exhibit G - Water Information <br />12. Please provide a model predicting the anticipated groundwater mounding and shadowing <br />effects as a result of the proposed slurry wall installation. <br />13. Please provide mitigation measures for the potential groundwater mounding and <br />shadowing effects due to the proposed slurry wall to be implemented and trigger points <br />which would put mitigation measures into effect. The mitigation measures must include a <br />scenario for the installation of a French drain to direct groundwater around the slurry wall <br />and restore groundwater levels to the historic elevation in area of groundwater mounding. <br />6.4.12 Exhibit L - Reclamation Costs <br />14. The Division has review and will accept the reclamation cost estimate provided by the <br />Applicant. The Division will set the required financial warranty at $1,104,455.00 upon <br />approval of the amendment application. <br />6.4.18 Exhibit R - Proof of Filing with County Clerk and Recorder <br />15. Please provided an affidavit or receipt indicating the date on which the revised application <br />information required to address this adequacy letter was placed with the Weld County Clerk <br />and Recorder for public review, pursuant to Subparagraph 1.6.2(1)(c). <br />6.5 Geotechnical Stability Exhibit <br />16. Please update the stability analysis completed for the Loloff Mine as part of technical <br />revision no. 1 to include the proposed slurry wall. <br />Please be advised the Loloff Mine amendment application may be deemed inadequate, and the <br />application may be denied on June 16, 2015, unless the above mentioned adequacy review <br />items are addressed to the satisfaction of the Division. If more time is needed to complete the <br />reply, the Division can grant an extension to the decision date. This will be done upon receipt <br />of a written waiver of the Applicant's right to a decision by June 16, 2015 and request for <br />additional time. This must be received no later than the deadline date. <br />