2021-08-31_REVISION - M2017007 - Laserfiche WebLink

Home Browse Search

MINING PLAN EXHIBIT D(coNT) disturbance will take place north of the permit line in the river bottom or on the existing slope into the river. The site is currently used as rangeland and consists of a gravel terrace paralleling the southern side of the Huerfano River valley. The usable materials on this site ranges from 5 to 50+ feet deep. The soil covering the gravel averages 0 to 5 inches deep with a layer of overburden ranging from 0 inches to 9 feet deep. The permit boundary starts in the southwest corner at a point east of the north/south fence north of the gate. The fence lines on the west, south and east sides do not lie on the owner- ship lines, so they will be located and then a shallow ditch will be placed around the mine area to delineate the permit boundary. The north line for the Affected Lands/Permit Line is the southern R.O.W. line for the San Isabel Electric Association powerline. The powerline ROW is 25 feet each side of the power poles . The existing, on site road is gravel with graded runoff ditches on each side. It is 20 feet wide with a slight crown to allow for drainage. This road will be maintained for use as a haul route and access for the property owners . Any runoff from the road will be retained on site and allowed to soak into the ground or evaporate. The road will be maintained for the life of the mine and a scale and scale house will be placed on the road near the access point. SOILS AND OVERBURDEN The SOILS MAP in EXHIBIT I shows the soil types as delineated by the National Resource Conservation Service (NRCS) obtained from the internet WSS web site. The information contained in EXHIBITI/J will provide background levels for the site as reclamation begins on the entire area. There are 5 types of soils found on the site. These soils are typical throughout the Huerfano River valley. They have no unusual qualities and three of the soils will not be disturbed by mining. The single undisturbed soil is designated as map units : 22- Glenberq sandy loam, 0 to 2* slopes The other two, 77-Schamber- Midway complex, 3 to 25o slope and 92-Willowman, Complex 0 to 2% slopes cover the area to be mined. See the soils map in the NRCS report for how the soils are distributed on the permit area. More detail information including, the soils description and 7(Revised 8/12/21)