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MINING PLAN <br />done, of by digging, coring, or examination of other exposures of the soil <br />profile. <br />c. Even more important than examining the soils, the vegetation will be carefully <br />examined to determine, in particular, whether noxious weeds are present in the <br />area or in adjacent areas and assessed as to how much noxious weed is present. <br />i. In the winter, not much can be done about the presence of noxious <br />weeds because they are dormant, but at least as assessment can be made <br />as to the extent of the problem. <br />During the growing season, only very dense and extensive noxious <br />weed populations (mainly leafy spurge) on the land to be mined and <br />within about 100 feet of the expected extent of the mining will be <br />treated five to seven days prior to soil stripping. The treatment will be <br />with appropriate herbicides. Within the mining area, glyphosate <br />(Roundup®) or 2,4-D can be used. Outside the mining area, herbicides <br />that are more specific for the weeds should be used to avoid adverse <br />effects on desirable species (usually 2,4-D only). Minor amounts of <br />noxious weed growth does not need to be treated in upland sites as a <br />part of the pre-mining treatment. Refer to Exhibit C-6 to locate areas of <br />significant noxious weed growth. <br />2. In the event no adverse soils or significant amounts of noxious weeds are found on or <br />near the expected mining area, proceeding to topsoil removal can occur immediately. <br />In the winter, even if significant noxious weeds are found, topsoil removal can <br />proceed, but it must be noted that significant noxious weeds are present and will be in <br />the salvaged soil. Appropriate action maybe required later to reduce the weed <br />population prior to redistributing the soil on backfilled land. <br />At the same time this assessment is being done, the expected mining area will be <br />measured, mapped, elevation reference points established adjacent to the mining area <br />as well as relative elevations taken from within the mining area. This is necessary to <br />meet both reporting requirements and to maintain consistency within the required <br />elevation deviation limitations stated in the lease. A description of how this is done is <br />provided in Exhibit E-2 in this amendment. <br />4. In the event the initial estimated mining area that was prepared and mined must be <br />expanded due to additional sand being available in adjacent areas, this process will be <br />repeated for the additional area. <br />Coal Creek Sand Resource Amendment 3 (2005) - M-1988-044 Exhibit D Page 25 <br />