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54 <br />Redistribution will be accomplished with scraper and/or frontend loaders and haul <br />trucks. Topsoil depths will range from 4 inches in the East Portal area to 9 inches <br />in the RDA. Areas will be ripped to a depth of 18 inches prior to topsoil <br />redistribution. <br />The cut area for the rock dust bins at the East Portal causes an increase in the <br />disturbed area of 0.94 acres as indicated on Figure 14. The estimated depth of <br />topsoil to be removed is based on the SCS soil data included in Exhibit 14 Soils <br />Information. The soil in the area has been classified at the P3E — Dargol- Fuera- <br />Vamer Complex. The typical topsoil layer for this soil type is 5 inches thick with a <br />sub soil of 23 inches over siltstone. Depth to bedrock ranges from 20 to 40 inches. <br />A visual inspection of the cut slope area indicates an estimated 9 inches of topsoil. <br />The actual topsoil and subsoil depth will be evaluated at the time of construction. At <br />9 inches of topsoil, 1,140 BCY will be relocated to Topsoil Storage Pile #2. Subsoil <br />at 23 inches results in 2,915 BCY of subsoil to be relocated and stored temporarily <br />at the subsoil storage area west of topsoil storage pile #2. Of the remaining 13,500 <br />BCY of material in the cut, 4400 BCY will be utilized for fill in rope slope <br />surface facility and at the breaker building. The 9,050 B CY of bedrock material <br />will be used on site for berms, outfalls and other civil work. <br />A small 0.50 acre area of the West Portal located approximately 50 feet due south of <br />West portal Disposal Pit WP -5 (shown on Map 16) will be disturbed for excavation <br />to repair the Rope Slope Entry into the New Elk mine. This area has been <br />classified as pre -law Disturbed No Refuse (DNR). Prior to beginning excavation, <br />approximately 6 inches of plant growth medium will be stripped and stockpiled <br />adjacent to the excavation. After completion of excavation and repair work, the <br />excavation will be backfilled, graded and covered with the stockpiled growth medium. <br />The cut area for the Bates Portal face up causes an increase in the disturbed area of <br />1.57 acres as indicated on Figure 14a. There is an estimated cut volume of 39,000 <br />BCY. The estimated depth of topsoil to be removed is based on the SCS soil data <br />included in Exhibit 14 Soils Information. The soil in the area has been classified at the <br />P3E Dargol - Fuera -Vamer Complex. The typical topsoil layer for this soil type is 5 <br />inches thick with subsoil of 23 inches over siltstone. Depth to bedrock ranges from 20 <br />to 40 inches. The actual topsoil and subsoil depth will be evaluated at the time of <br />construction. Assuming 9 inches of topsoil, 1,900 BCY will be relocated to topsoil <br />storage pile #l. Subsoil at 23 inches results in 4,855 BCY of subsoil to be relocated <br />and stored temporarily at the subsoil storage area #1 west of topsoil storage pile #2. <br />Approximately 25,000 bank cubic yards of bedrock subsoil and 14,000 bank cubic <br />yards of common subsoil from the Bates Portal excavation will be placed in the <br />subsoil stockpiles #2 and #3 respectively. The topsoil and subsoil storage areas are <br />shown on Map 11, Sheet 3 East Portal Facilities. <br />(e) Depth of Cover Requirement- Development Waste Pile (DWP) and Refuse <br />Disposal Area <br />New Elk Coal Company Processing (NECC) reviewed the suitability of instituting an <br />Alternative Cover Requirement for the DWP and RDA. NECC is using an <br />Abandoned Mined Lands (AML) reclamation project adjacent to the New Elk Mine <br />Section 2.05 TR -68 12/10/2014 <br />