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42.05 APPLICATION FOR PERMIT FOR SIIRFACE OR DNDERGROUND MINING ACTFVITIES -- MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. 2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (Cont'd,) (6) (e) (ii) (C) (Cont'd.) Repair procedures for all resources have been designed. Monitoring of fea- tures will continue. A Water Replace- ment Plan has been designed for hydrol- ogy features as the final protective s[ep, (iii) The subsidence survey described in Section 2.05.6(6)(e) and presented in Volume 3 deter' mined that the predicted nature of subsidence ~~ ~ ~ ~J within the permit and adjacent areas should not result n material damage1or diminution of ~`~~ the reasonably foreseeable use. CWI has de- li~~ signed and included a subsidence monitoring program to verify the accuracy of the subsi- dence prediction in Section 2.05.6(e)(i)(D). (iv) Necessitated by lease stipulations "g" and "1" and the remote possibility of material damage \ described in Section 2.05.6(6)(b)(i) (Worst Possible Consequences), CWI has prepared a ~ \ ~~tl site specific subsidence control plan which is ~ \!V1 ,~ _p presented in Section 2.05.6(6)(f). Supporting ~,QY~U technical calculations and data are presented _ .11~ in Voliane 3 (Pillar Stability Report) . ~~"" ~ (f) (i) (A) Room and pillar mining achieved by con- tinuous mining equipment is proposed for lease C-37210. Pillar recovery will be attempted for most of the lease with the exception of zones where un- stable roof conditions present a safety hazard and areas described in Section 2.05.6(6)(f)(i)(B). For additional op- erational information, refer to Section 2.05.2. (B) In locations where Renewable Resource Lands or structures are absent, the subsidence control measures to be im- plemented consist of rapid and total subsidence to ensure residual Revised 12/26/84 Revised 10/01/87 155