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4. Post-Reclamation Site Drainage <br /> Map F-1 shows arrows indicating the approximate direction of drainage throughout the pit. The <br /> final reclamation will be graded so that drainage water will go in a similar path to the original <br /> path. <br /> 5. Weed Control <br /> Measures will be employed for the control of any noxious weed species. The objective of this <br /> weed management plan is to control undesirable plants on the Base Products Gravel Pit#1 <br /> property. Plants identified through the Colorado Noxious Weed Act (C.R.S. 35-5.5) and the <br /> Montrose County Noxious Weed List as undesirable and designated for management within the <br /> county will be removed. These plants identified as noxious weeds will be managed by control <br /> measures. A Weed Control Plan will be utilized as follows: <br /> 1) Each April, a weed survey will be taken of the permit area. <br /> 2) If any patches or plants have been identified, they will be sprayed by backpack sprayer or <br /> 4-wheeler using chemicals approved for use by the weed control staff of Montrose <br /> County. <br /> 3) After reclamation, weed surveys and spraying will continue until the perennial cover and <br /> production of the site have met DRMS requirements and bond release has been obtained. <br /> The Division and Montrose County staff will be consulted regarding any weed infestation areas <br /> and any control measures prior to their initiation. The plan does not contemplate total weed <br /> removal on the property. Past experience has shown that some initial weed cover in the first year <br /> following the retopsoiling is beneficial to the reclamation effort in rangeland sites. Weeds tend to <br /> provide shade for new grasses, are a means of holding snow on the seedbed longer, and protect <br /> seedlings from wind and water erosion until the planted species have firmly taken hold. <br /> During all phases and areas of the mining operation the permit area will be monitored closely <br /> every year, through which the operator may determine if any additional weeds have grown. If <br /> any new species of weeds are found, Montrose County and the Division will be consulted in <br /> order to formulate the best plan for the new infestation. <br /> Base Products Gravel Pit 41 } <br /> February 2018 E-4 <br />