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Section 780.21 (b) Continued. <br />within <br />ponds; <br />main t <br />excess <br />within <br />816.42 <br />any stream buffer zones will be: 1) Several sedimentation <br />2) Certain stream crossings by roads; 3) The existing <br />fipple facility at Energy Mine No. 1; and 4) The possible <br />spoil pile 2b. The sedimentation ponds which are located <br />the buffer zone are needed to achieve compliance with 30 CFR <br />so that runoff from disturbed areas is treated before leaving <br />the permit boundary. Specifically, these ponds are those labeled A, <br />B, C, D, and E on the Energy Mines No. 1 and 2 Hydrology (Map 13) <br />and the Eckman Park Hydrology (Map 14). Roads will cross or will <br />be located within stream buffer zones in several areas, as shown on <br />the Energy Mines No. 1 and 2 Mine Plan (Map 1) and the Eckman Park <br />Mine Plan (Map Z}, In accordance with Sections 816.153 (e), 816.163 <br />(e), and 816.173 (d), all Class I, II, or III Roads which traverse <br />or are located within stream buffer zones will have proper drainage <br />structures installed and maintained so that the normal flow or <br />gradient of the stream will not be affected and so that possible <br />• fish migration, aquatic habitat or related environmental values <br />will not be adversely affected. Drainage designs for all roads are <br />described in detail under Sections 816.153'(e), 816.163 (e), and <br />816.173 (d). Drainage from the main tipple at Energy Mine No. 1 <br />is passed through sedimentation pond C below being released to <br />Foidel Creek. Additional discussion on stream buffer zones is set <br />forth in Section 816.57. <br />Excess spoil stockpiles have been designed and will be constructed <br />and maintained with proper sediment and drainage control structures <br />so that surface water quality is not adversely affected and so that <br />long-term structural stability of the excess spoil stockpile can be <br />maintained. The locations of all excess spoil stockpiles are shown <br />on Energy Mines No. 1 and 2 Mine Plan (Map 1) and Eckman Park Mine <br />Plan (Map 2). Each excess spoil stockpile is classified as a <br />valley fill, but not a head-of-hollow fill, as defined in 30 CFR <br />701.5, and has been designed and will be constructed and maintained <br />• in accordance with the criteria set forth in 30 CFR 816.71 and <br />780-155 <br />