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Exhibit F - Reclamation Plan Map <br />The revised Exhibit F, Reclamation Plan Map, has been updated to show the entire mined <br />area of the permit backfilled to near original grade. This acreage is approximately 52 <br />acres and the soil surface will be ripped and disked where needed and will be planted <br />with the seed mix shown in Exhibit E. <br />Exhibit G - Water Information <br />Being submitted under a separate cover is a design for a long-term dewatering "drain" to <br />be placed on the eastern perimeter of the Speer permit area to preclude the possibility of <br />either mounding of the local groundwater table to the east of the pit due to compacted <br />clean fill dirt or creation of boggy ground in the central and western portions of the <br />backfilled pit, again due to compacted clean fill dirt which could become saturated due to <br />high alluvial groundwater levels. The Speer site is currently still being dewatered through <br />pumping of alluvial groundwater to the South Platte River, but at some point in time, the <br />pump will be shut off and the pit will be allowed to fill with water or if the pit is nearly <br />backfilled, and after the pump is shut off, groundwater will return to it's former elevation <br />within the backfilled pit. Because clean fill dirt has a lower transmissivity and will have <br />fewer voids or pore space than the original sand and gravel that was located at the Speer <br />site, high groundwater levels could make the lower bench of the Speer site saturated with <br />water and boggy. That condition would preclude certain future uses of the land, even as <br />agricultural. <br />Should approval not be received by Adams County through the CD process for inert <br />filling of the site, a different reclamation plan may have to be developed for the Speer <br />DRMS permit and re-submitted to the DRMS. That action may preclude the construction <br />of the long-term dewatering drain, if another method of reclamation for this site is <br />required. <br />There are no other negative hydrologic impacts that will be created by approval of this <br />fourth amendment for backfilling the entire mined area of this permit. <br />Exhibit L - Reclamation Costs <br />Follows is the revised Exhibit L for this amendment to the Speer permit. The reclamation <br />costs only include the soil cover required for the inert fill portion of the permit area and <br />revegetation of the entire disturbed area.