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<br />Technical Revision No. 21 was submitted October 1, 1990 and was approved with <br />conditions on November 19, 1990. Anew access road for the refuse disposal <br />area was constructed. Bond was increased by $20,720.25. Stipulation No. 46 <br />required bond to be posted within 30 days. <br />Technical Revision No. 22 was submitted on October 2, 1990 and was approved on <br />November 16, 1990. The side and north collection ditches on the refuse <br />disposal area were relocated. Bond was increased by $240.00. <br />Minor Revision No. 36 was submitted on November 16, 1990 and was approved on <br />December 4, 1990. This involved the installation of an above-ground freeze <br />conditioning agent storage tank. Bond was increased by $470.00. <br />Minor Revision No. 37 was submitted on January 29, 1991 and was approved <br />February 4, 1991. This involved an extension of a haul road. Bond increased <br />by $150.00. <br />Minor Revision No. 36 was submitted on May 31, 1991 and was approved on <br />June 10, 1991. A filter fabric was installed on the refuse disposal area <br />underdrains. <br />Technical Revision No. 23 was submitted on June 20, 1991 and was approved on <br />May 18, 1992. Small area exemption demonstrations and reclamation plans were <br />presented for seven areas. The satisfied Item 2 (of 4) for TDL 91-02-370-003. <br />Minor Revision No. 39 was submitted on June 24, 1991 and was approved on <br />August 30, 1991. New identification of interest and compliance information <br />was provided. <br />Technical Revision No. 24 was submitted on September 3, 1991 and was approved <br />on November 27, 1991. Small area exemption demonstrations were provided for <br />two areas east and west of the refuse disposal area belt. This TR was <br />superseded by TR-25. <br />Minor Revision No. 40 was submitted on December 30, 1991 and was approved on <br />January 31, 1992. This MR was for the addition of a coal stockpile area. <br />Technical Revision No. 25 was submitted on January 27, 1992 and was approved <br />on July 23, 1992. Designs were provided for five containment area ponds, to <br />satisfy Item 3 (of 4) of TDL 91-02-370-003 and for NOV C-91-028. <br />Minor Revision No. 41 was submitted on February 7, 1992 and was approved on <br />February 24, 1992. This MR was for a fuel containment area. Bond was <br />increased by $1590.00. <br />Minor Revision No. 42 was submitted on February 24, 1992 and was withdrawn on <br />February 28, 1992. This concerned the upgrading of an access road to a haul <br />road. <br />Minor Revision No. 43 was submitted on March 30, 1992 and was approved on <br />April 15, 1992. The drainage configuration was modified for coal stockpiling <br />just west of the office. <br />-6- <br />