Laserfiche WebLink
MINING PLAN <br /> This will rebuild a dry zone between the moist sand and the surface to help insure that ground water <br /> is not exposed. Although this soil layer may, in time,become moist that will only aid in the growth <br /> of the desired final vegetation. <br /> The final result of this approach to the mining will produce a rather gentle west facing slope <br /> that starts at the eastern end of the area mined(roughly 100 feet east of the current upper water zone <br /> extraction wells) and extends westward to meet the nearly flat bottom of the existing pit in the <br /> vicinity of the current permit boundary. It is estimated that at least 80% of the sand to be removed <br /> from the Little Johnson area will be contained in the land between the current mining limit (west of <br /> the current permit boundary) and the upper zone extraction wells. jin ,;? <br /> NN <br /> Finally, it is important to recognize that the LJR groundwater extraction wells, theirassociated underground power line and underground water pipeline to the treatment plant wiremoved as a result of mining. This is fully acceptable to the remediation program as evidenc �,documents elsewhere in this amendment. The Bradley Road groundwater extraction system(power, and pipelines)will not be affected by this mining as they are all located well away fro <br /> mining area. <br /> NORTH END OF LITTLE JOHNSONAREA: Mining the north end of the Little Johnson area <br /> must be done with considerable care to avoid affecting the ditch corridor, IF THE DTICH HAS NOT <br /> BEEN RELOCATED BY THIS TIME. <br /> final slope. Although the reclamation plan maps show this area as a temporary reef amation area <br /> st assume that the appropriate temporary reclamation will become the permanent <br /> reelarnation. <br /> No mining can occur north of a line 50' south of the current ditch alignment UNTIL THE <br /> DITCH IS RELOCATED. The finaf slope created in the mining wilf be 3.f or less steep. The final <br /> slope will not be created by backfilling a steeper slope. <br /> fn the event a reservoir is created in the Htfle johnson area, this slope wiff fonn the northern <br /> edge of the reservoir. Therefore, the inaterial here needs to be native, undist=bed material to <br /> maintain the highest integrity of the slope. <br /> On the other hand, WHEN if the ditch is relocated as <br /> described in THIS AMENDEDMENT the enrrent permitted p1mi, then this slope and the ditch <br /> corridor will be mined through at some point in the future. But that mining cannot occur until a <br /> decision is made regarding the construction of a reservoir 2V+D the ditch is relocated. fithis area is removed, then it wilf most fikely be removed as part of the Phase 5e mining and not the <br /> The mining of this area must be consistent with the MOST fimiting possibfe ftrtnre tse. <br /> elearly, mi assumption that the reservoir will be built is the niost limiting future use. if the reservoir <br /> Daniels Sand Pit Amendment (2008) Exhibit D Page 16 of 28 <br />