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will be planted in order to reduce the abundance of weedy species. To the extent possible, topsoil <br />stockpiles will be mowed to reduce [he cover by annual weed species. <br />Rapid Turnover of Stockpiles. Product stockpiles can serve as sites for some annual <br />plant species. The contiguration of these stockpiles is such that it is not possible to use a mower, <br />and it is not desirable to treat weeds on these sites with herbicides. The most practical way to <br />control weeds is to plan for a rapid turnover of the various product stockpiles. <br />Burnine. Burning can be a useful tool for weed control, however it may not be practical <br />within the permit area of the mine. It may be possible to use [his approach on some of the areas <br />that will not be mined or possibly on sites that have been reclaimed. Burning releases nutrients <br />that are tied up in plant litter and tends to favor development of grasses rather than broad-leaved <br />species. Additionally, it temporarily reduces vegetation cover, such that populations of perennial <br />weedy forb species are more readily seen and can be more easily treated with herbicides. Open <br />burning may require obtaining permits from the County Health Department. If burning is used as <br />a control technique, it will be done during the spring season. <br />Control of weed species at the North Delta Pit will include: monitoring, herbicide <br />application, and mowing. <br />