OSM NEWS U. S. Department of the Interior Office of Surface Mining For release: June 24, 1999 Jerry Childress (202) 208-2719 Jchildre@osmre.gov OSM DIRECTOR DETERMINES AOC DOES NOT APPLY TO VALLEY FILLS Kathy Karpan, Director of the Interior Department's Office of Surface Mining Reclamation and Enforcement (OSM), today issued a policy document that the requirement to restore disturbed areas at surface coal mine sites to approximate original contour (AOC) does not apply to valley fills. The policy document attaches a legal opinion from the Interior Solicitor's Office that supports the determination. "One of the issues that has arisen from OSM's oversight of the State of West Virginia's approved regulatory program and the lawsuit filed by a group of West Virginia citizens, and the West Virginia Highlands Conservancy is whether excess spoil disposal sites, particularly valley fills, must be reclaimed to AOC," Karpan said. "That's why I asked the Department's Associate Solicitor for Mineral Resources to analyze the pertinent sections of the Surface Mining Control and Reclamation Act (SMCRA) on that issue," Karpan said. "The analysis, with which I concur, shows that the requirements to restore disturbed areas to AOC does not apply to valley fills," Karpan said. "Consequently, I concur with the statement in the 1998 West Virginia Oversight Evaluation Report on Approximate Original Contour and Post Mining Land Use, that valley fills are outside the mined area to which AOC applies, and therefore, valley fills themselves are not subject to a requirement to achieve AOC," Karpan said. "This interpretation is consistent with OSM's past treatment of the issue of excess spoil," Karpan added. Both SMCRA and the approved West Virginia regulatory program contain the requirement that surface coal mines be restored to AOC. AOC requires that the mined land should closely resemble the pre-mining landscape, after reclamation is completed. Surface mining in steep slope mountains creates spoil material (broken rock ) that cannot be completely put back where it came from because it swells in volume during the mining process, and because of other features like stability and access roads that must be considered. The portion of the spoil that cannot be safely returned to the mined area is termed "excess spoil " and is typically placed in valleys adjacent to the mined area. Copies of the policy document and legal opinion may be obtained from Vermell Davis of the OSM Technology Development staff, telephone: (202) 208-2802, or the OSM home page, www.osmre.gov. -OSM-