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Section 780.11(b) Continued. <br />• to these facilities is necessary or planned for continued production. <br />Upon permanent cessation of operations, all mine facilities not <br />approved for permanent retention will be dismantled and removed from <br />the site, and the associated areas regraded, topsoiled, and revegetated <br />consistent with the reclamation plan discussed in Section 780.18. The <br />DMG has approved retention of the office/shop/warehouse building, mine <br />water ,supply well, and mine access road as permanent structures to <br />support postmining land uses. <br />Water and Air Pollution Control Facilities. <br />Water quality in the vicinity of the Permit Area is maintained by the <br />series of sedimentation ponds (described at "impoundments" above) and <br />through a number of primary sediment control methods, such as contour <br />furrowing, mulching, and the placement of straw dikes, riprap, check <br />dams, sediment filters, sediment traps and culverts. <br /> The flow diagrams for the Kerr Tipple are shown on Figure 12, Kerr <br /> Tipple Layout and Figure 13, Kerr Tipple Crushing Facilities. The dump <br /> hopper is a three-sided enclosure designed to prevent excessive dust <br /> emissions, and the crusher building at the Kerr Tipple is equipped with <br /> a bag house to control coal dust emissions. All air quality control <br /> measures and facilities at the Kerr Tipple have been approved by the <br /> Colorado Department of Health, Air Pollution Control Division. <br />Kerr Coal will continue to employ a dust suppression program consisting <br />primarily of a periodic watering schedule for haul roads and other <br />unpaved roads at the proposed Mine Plan Area. During the dry summer <br />months, specifically Jvly, August, and September, a water truck will <br />wet down all haul roads at least two or three <br />• <br />-A4R--3~@- <br />MK- 39 <br />780-13 Revised April 2004 <br />