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III IIIIIIIIIIIIIIII <br />MINED LAND RECLAMATION DIVISION <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />303 B66-3567 <br />Fnx: 303 632-8106 <br />August 27, 1990 <br />pF COQ <br />R~~q <br />~`' \8 <br />.~~~ <br />' /876 ~ <br />Roy Romer, <br />Gavemor <br />Fretl R. Banta, <br />Division Director <br />Mr. James Lunan <br />Peabody Coal Company <br />1300 South Yale <br />Flagstaff, Arizona 86001 <br />RE: Erosion at Inlet of Sediment Pond 005, Nucla Mine, Permit C-81-008 <br />Dear Mr. Lunan: <br />Inlet erosion just below the riprap for the outlet of culvert C-21 and the <br />bottom of sediment pond 005 was noted during the complete inspection of August <br />16, 1990. The permit was subsequently reviewed to determine compliance with <br />Rule 4.05.9(4). The Division has founa that although riprap has been <br />installed according to the approved plan t'or Culvert C-21 (See Tab 13 <br />Attachment B-E and Exhibits 13-15 and 13-15A), it is apparent that riprap <br />installation has not completely protected the pond slopes from inlet erosion. <br />Therefore in accordance with Rule 2.08.x(3) the Division orders that this <br />condition be rectified via a minor revision to the permit. This minor <br />revision should address how Peabody will protect the inlet channel to sediment <br />pond 005 and any other sediment pond on site that shows or has the potential <br />of showing similar erosion. Channels should be protected down to a stable <br />elevation. In this case, we believe the stable elevation exists at the <br />average water level of the pond. Please submit this revision no later than <br />September 28, 1990. This order is subject to administrative and judicial <br />review in accoraance with Rule 2.08.3(5), <br />If you have any questions please contact me. <br />Sincerely, <br />~~~-~ <br />Carl B. Mount <br />Reclamation Specialist <br />CBM/yjb <br />U <br />STATE OF COLORADO <br />9717E <br />