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utilized to reclaim 10.5 acres of pre-law spoil piles/pits and 2.2 acres <br /> of pre-law facilities. Second, the 2.0 acres of nontopsoiled, seeded, <br /> regraded spoil in Mine Areas 2 and 3 will be topsoiled as shown in Table <br /> 9-3-3. In summary: <br /> Previous disturbed land total - 63.76 <br /> Pre-law spoil piles/pits - 10.50 <br /> Pre-law facilities - 2.20 <br /> Nontopsoiled, regraded, seeded spoil - 2.00 <br /> Revised disturbed land total - 49.06 <br /> Comment 2. <br /> RESPONSE: <br /> The Topsoil Balance Plan (Tab 9, Attachment 9-3) has been updated to <br /> incorporate the following changes: <br /> 1. Separate topsoil balances were prepared for Mine Areas 2 and 3 <br /> (new Table 9-3-3) and Mine Areas 1, 4, and 5 (revised Table 9-3-2) . <br /> 2. Topsoil replacement depths will be 6 inches for Mine Areas 2 <br /> and 3. The majority of this area was disturbed by previous mining <br /> activity and subsequently reclaimed. In accordance with Permit <br /> 75-36, 4 to 8 inches of topsoil/subsoil material was replaced. <br /> Therefore, a 6 inch mean topsoil/subsoil replacement depth over 3.5 <br /> feet of suitable spoil is justified for Mine Areas 2 and 3 for this <br /> Permit (C-008-81) Revision. <br /> 3. The topsoil replacement depth for post-mine rangeland <br /> reclamation areas will be 10 inches. <br /> 4. The topsoil replacement depth for post-mine dryland pasture <br /> reclamation areas will be 15 inches. <br /> 5. Suitable overburden/spoil materials will be utilized to <br /> topdress the redisturbed areas that were previously mined pre-law. <br /> 6. Topsoil will be utilized on pre-law areas only if excess <br /> quantities are available after topsoiling the post-law rangeland <br /> and dryland pasture reclamation areas. <br /> 7. The various soil replacement depth categories are indicated by <br /> mine area on Exhibit- 13-1b, Postmine Soil Replacement Depths. <br /> 12 <br />