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The Division approved the applicant's plan for disposal of <br />debris, acid-forming or toxic materials, or materials <br />constituting a fire hazard in a manner designed to prevent <br />contamination of ground or surface waters. The operator will <br />bury known acidic spoils, per their plan in Rule <br />2.05.4(2)(e)(vi), and then sample the regraded spoil on a 300- <br />foot grid for pH and acid-base potential. In locations of low <br />acidity or low buffering capacity, the operator has committed to <br />lime amendments for neutralization. <br />The Division proposes to approve the method and design <br />specifications for covering of acid-and toxic-forming materials <br />in order to prevent leaching into surface and ground water and to <br />ensure backfill stability. The operator will bury known acidic <br />spoils below the rooting depth and above the water table, per <br />their plan in Rule 2.05.4 (2)(e)(vi) (4.14.3(2)). <br />Impoundments <br />Refer to the section regarding sediment ponds (4.05.9). <br />G. Surface and Groundwater Monitoring <br />The applicant will conduct monitoring of groundwater in a manner <br />approved by the Division. The groundwater monitoring plan is <br />described in Section 2.05.6(3)(b)(iii). The locations of ground- <br />water monitoring sites are shown on Map 2.05.6(3)-1. The results <br />of the monitoring program are submitted annually to the Division. <br />The applicant will conduct monitoring of surface water in a <br />manner approved by the Division. The monitoring plan is <br />described in Section 2.05.6(3)(b)(iii). The location of surface <br />water monitoring sites is shown on Map 2.05.6(3)-1. The results <br />of the monitoring program are submitted annually to the Division. <br />H. Transfer of Wells <br />No transfer of wells is proposed (4.05.14(3)). <br />1, Discharge of Water into an Underground Mine <br />There will not be any discharge of water into an underground mine <br />(4.05.16(2)). <br />J. Stream Buffer Zones <br />There will be no surface or underground mining activities within <br />100 feet of a perennial stream with a biological community <br />(4.05.18(1)). <br />x, Probable Hydrologic Consequences <br />Under Rule 2.07.6(2)(c), the Division is required to make an <br />assessment of the probable cumulative impacts of all anticipated coal <br />mining in the general area on the hydrologic balance and to make a <br />finding (as discussed in Section A of this document) that the <br />operations proposed in the permit application have been designed to <br />prevent material damage to the hydrologic balance outside of the <br />proposed permit area. This section of the findings document is <br />divided into the following subsections: Description of the <br />Hydrologic Environment; Probable Hydrologic Consequences of the Red <br />Canyon Mine; and Summary and Findings. A separate Cumulative <br />Hydrologic Impact Study (CHIS) is available for review at the <br />Division of Minerals and Geology. The CHIS filed at the Division <br />13 <br />