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<br />~ III IIIIIIIIIIIIIIII ~ <br />DEPARTMENT OF ES <br />D Monle Pascoe. E,eculrvi _ 999 <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON Director <br />R~chartl D Lamm <br />Governor <br />April 21, 1983 <br />Mr. Larry E. O'Brian <br />Environment, Inc. <br />9989 West 60th Avenue <br />Arvada, Colorado 80004 <br />Re: Walstrum Mine Permit Application <br />Our File No. 83-33 <br />Dear Mr. O'Brian: <br />Thank you for your answer to my adequacy letter of March 22, 1983. I have <br />reviewed your responses to my letter and have the following questions and _ <br />comments. Please respond to each, point-by-point, in as timely a manner as <br />possible prior to the scheduled April Board meeting. <br />B. Exhibit D - Mining Plan <br />The Division needs further explanation as to how the drainage will not <br />be affected, since initial access to the site is on the west side of this drainage <br />with all mining being done to theeast of this drainage. How, then, is the <br />drainage maintained? Will culverts be used? When will the proposed access <br />road to the east side of the ravine be constructed? How wide is this proposed <br />road? <br />The Division is concerned that there is the potential for bench stability <br />gyp` problems at this site. The basis for this request is pursuant to C.R.S. 1973, <br />~;t' 34-32-116(1)(1) and Rule 6.1(b). Without this information, the Division is <br />P \$3 unable to make an accurate assessment of the site and is unable to assess the <br />~\~3 potential for damage to areas outside the affected land from possible slides. <br />Therefore, the Division is requesting the information specified in the earlier <br />letter in order to avoid a denial recommendation based on the lack of sufficient <br />data. <br />The Division considers this request reasonable due to the close proximity <br />\3 of the Conoco complex just south of the affected area. The basis for this request <br />~\3 is pursuant to C.R.S. 1973, 34-32-116(1)(1). This information is needed to <br />adequately assess the area and, without it, the Division is forced to recommend <br />denial. This recommendation can be reversed with the submission of the requested <br />(March 22, 1983 letter) information. <br />423 Centennial Building. 1313 Sherman Street Denver. Colorado 802n3 Tel. (:~03) 866-3567 <br />