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<br />Revegetation standards were revised as a result of the approval of technical revision no. 13 (TR-13) on <br />August 22, 1994. <br />Three minor revisions have been approved since the last permit renewal (RN-02). Minor revision no. 5 <br />modified the permittee's address. Minor revision no. 6 added a grazing plan and minor revision no. 7 <br />updated the NPDES permit pages located in Exhibit 8 of the permit. <br />iI. Revisions to the Permit <br />No distinction was made between technical revisions and minor revisions with respect to sequential <br />numbering during the eazly yeazs of this permit. Consequently, the first revision conducted was <br />Technical Revision No. 2, followed by Minor Revision Nos. 2, 3, and 4, followed by Technical Revision <br />Nos. 6 through 12. Following is a list of all revisions to the permit for Colorado Coal Mine No. 1, with a <br />description, action, and date. <br />Revision No. Description Decision Date <br />MR-02 Fence around pit area Approved 4/09/85 <br />MR-03 Replace culvert with dry crossing Approved 1 I/ 13/87 <br />MR-04 Temporary reclamation seed mix Approved 11/10/87 <br />MR-OS Change permittee address Approved 10/ 14/94 <br />MR-06 Submit grazing plan Approved 10/21/94 <br />MR-07 Update NPDES pages in Exhibit 8 Approved 3/7/95 <br />TR-02 Install diversion ditch Approved 4/09/85 <br />TR-06 Reduce hydrologic monitoring Approved 2/06/87 <br />TR-07 Respond to midterm issues Approved 4/27/87 <br />TR-08 Reduce hydrologic monitoringplan Approved 5/2/88 <br />TR-09 Revisereclamationplan Approved 1/26/89 <br />TR-10 Suspend hydrologic monitoring Approved 6/01/89 <br />TR-11 Add sediment pond Approved 3/08/90 <br />TR-12 Remove two sediment ponds Approved 1/22/92 <br />TR-13 Reviserevegetationstandazds Approved 8/22/94 <br />III. Status ofStioulations <br />This section summarizes the status of stipulations attached to the permit. Stipulations 1 through 19 are <br />reiterated from the midterm review conducted in 1986. Stipulations 20, 21, and 22 are taken from the <br />1989 Renewal Findings. <br />4 <br />