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MINING PLAN EXHIBIT D (coNT) <br /> minimum of 2 feet higher then the highest ground water level . <br /> The soil covering the gravel averages 0 to 5 inches deep with a <br /> layer of overburden ranging from 0 inches to 2 feet deep. <br /> The permit boundary starts in the northeast corner of the <br /> existing 110 permit and follows a northerly course parallel and <br /> approximately 50 feet west of the powerline until it reaches <br /> the fence on the north end of the terrace. It then follows the <br /> fence that is setback from the upper rim of the terrace until <br /> the fence turns south onto the lower river level and returns to <br /> the southern end of the existing permit and until it returns to <br /> the point of beginning. <br /> SOILS AND OVERBURDEN <br /> The SOILS MAP in EXHIBIT I shows the soil types as delineated by <br /> the National Resource Conservation Service (NRCS) obtained from <br /> the internet WSS web site. The information contained in EXHIBIT <br /> I/Jwill provide background levels for the site as reclamation <br /> begins on the entire area. <br /> There are 2 types of soils found on the site. These soils <br /> are typical throughout the Rio Grande River valley. They have <br /> no unusual qualities or characteristics . <br /> They are designated as map units : 128-Cryohemists-Cryaquolls <br /> association, 0 to 12% slopes and 174-Youga-Gateview Complex, 3 to 25% slopes. Only <br /> a minor part of the Cryohemists soils group will be disturbed <br /> in the southeast part of the mine. Primarily mining will <br /> affect the Youga soils . More detail information including, the <br /> soils map, descriptions and engineering qualities, can be found <br /> starting on page 25 in this application. <br /> Based on the soils report and on site observations there <br /> are sufficient quantities of growth medium/soil available to <br /> reclaim the disturbed lands to their present condition. The <br /> soils in this area when salvaged and replaced should be capable <br /> of growing vegetation consistent with what is there now. The <br /> average depth of topsoil on the site according to the NRCS <br /> report is 0 to 5 inches deep. In addition there is another 10 <br /> to 12 inches of overburden that is salvaged to use as growth <br /> medium. Using 4 . 0 inches as the average depth of growth medium, <br /> we calculate there should be a minimum of 21, 520 YD3 available <br /> for resoiling the disturbed area. Be assured that enough growth <br /> medium will be retained on the site to assure reclamation and <br /> revegetation is successful. The topsoil and overburden <br /> Big Bull Dog Trucking, Inc. Soward Ranch Pit <br /> Permit M-1988-021 8 June 21, 2024 <br />