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III M-2001-001 Line Camp Pit Amendment#2 (Expansion) Exhibit C. PRE-MINING AND MINING PLAN MAP(S)OF AFFECTED LANDS(6.4.3) INDEX: C-1. General site conditions (from National Map)showing present contours (above ordinary high- water mark, OHWM) and permanent structures with owners C-2. General site conditions (2023)showing affected areas and permanent structures with owners C-3. General site conditions (2024) showing area outside permit area used to store processed construction materials removed from the permit area; current ground conditions and approximate water level (lower than OHWM due to time of year of photo) C-4. Proposed sequence of mining for expansion area, showing proposed mining and facilities, including sequence by years. (Expansion area only) C-5. Closeup of expansion area August 2024 NOTES FOR MAPS The western boundary of the permit area is the right-of-way for Colorado Highway 145, assumed to be 33.0 feet from centerline of the highway. The fence is irregularly placed, probably due to rocks and other obstacles. Utilities easements are either in the right of way or within a strip of approximately 5 feet width outside the right-of-way. There are no recorded easements for the proposed affected area except at the point where the access road and ramp connect to the highway. Information on soils is shown on Map in Exhibit I. Information on vegetation is shown on Map in Exhibit J. Adjoining surface owners (landowners) of record are shown on Map in Exhibits B, 0, and S. Information on permanent or man-made structures is shown in Table in Exhibit S. Existing topography of the area with direction and rate of slopes: The entire current operating area drains internally into the ponds. Theoretically, the bar ditch and outer slope of the berm flows to the south and into the Home Ditch but due to roughness of the natural surface and berm, there is no flow. An estimated area of the armored bank in the southeast corner of the existing pit and ponds of 50 by 300 feet dues again theoretically flow into the river directly but generally, together with the semi-circular wooded area, infiltrates without surface flow. The exception to this is of course a 100-year or less probability flood event, which includes all excavated areas and flows to the south. Slopes, except for berms and excavated slopes, is 2% or less. Berms slope vary but range as high as 3H:1 V— generally less than 2H:1 V and stabilized by grass/forbs. Total area to be involved in the operation including: • Area to be mined (excavated): New 18.9 acres, total: 48.0 acres • Area of affected lands, including: o Access roads o Stockpiles o Surface water control measures o Plant location(s) o Areas as required by County regulations • Type of vegetation covering the affected lands: primarily native and cultivated grasses with some shrubs; cottonwood riparian woodlands adjacent. 5182-22-001 lArASTELINE, INC. Page 12 of 65