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resumption of mining via the South Portals. Item Resolved. 11. This item requested update to Exhibit 46, Man made Features Map, to include a TransColorado Gas Transmission Company gas transmission line, constructed across a portion of the permit azea, within the South Portals mine area. The item also requested a commitment to notify the gas company 6 months prior to undermining of the pipeline, and advised the operator that PCC would need to obtain approval for a subsidence survey or control and mitigation plan prior to mining within the subsidence angle of draw. A May 26, 1998, agreement between PCC and TransColorado, which included the commitment for PCC to notify TransColorado 24 months prior to undermining the pipeline, was included as Appendix 20-9, dated March 21, 1999. An appropriately amended Exhibit 46, showing the pipeline route was submitted. Howeve, the map was not certified, and the permit boundary was not specifically identified, as required. These minor corrections will need to be made. The operator stated in the cover letter dated March 20, 1999, that "unless and until mining resumes at the south portal, no subsidence protection zone or plan [for the gas transmission line] will be necessary. If plans change and the mine is reactivated, subsidence plans will be submitted. The Division agrees, but we request that the operator include a specific commitment within the subsidence section of the permit application. The teat should state that, should mining via the South Portals be reactivated, the operator will obtain DMG approval for a subsidence survey or control and mitigation plan indicating no damage will occur to the pipeline (with the concurrence of the gas company), prior to mining within the subsidence angle of draw. 12. Item 12 addressed various drainage and sediment control modifications and installation timeframes. These items have been completed, or modified by subsequent revisions. Issue Resolved. 13. This item requested documentation regarding a ditch berm at the south end of the RSRDA which had not been specifically addressed in the permit. The documentation was provided. Issue Resolved. 14 This item requested amendments to Exhibit 8B, to show approved spillway locations for Treatmend Pond 12 and Sediment Pond 5. An amended Exhibit 8B was submitted in June, 1998, but it erroneously depicts an emergency spillway pipe extending from Pond 12 to Pond 5. Also, the map was not certified. A properly amended and certified Exhibit 8B will need to be submitted. 15. This item requested submittal of additional bond, as calculated by the Division for the renewal. A bond rider in the increasing the bond amount by $2,000.00, as requested, was recently submitted, but had not been received by our Denver office as of April 14, 1999.