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~:_: <br />c-r;~: <br />C-O11ilS? <br />D-044569 <br />UNSUITABILITY ANALYSIS AND R-cPORT <br />Federal Loal Leases C-1362, C-0117192 and D-044569 <br />Mount Gunnison No. 1 Mine <br />_ ___ _. ARCO Coat Company <br />.INTRODUCTION AND PURPOSE <br />The President, on August 3. 1977, signed into law the Surface Mining <br />Control and Reclamation Act jSMCRA). Section 522 of S1iCRA fluthorizes the. <br />Secretary of the Interior to conduct a Federal land reviex in order to <br />determine those lands unsuitable for surface coal mining. Federal lands <br />also include private surface.nnderlain by Federal coal. <br />The Department of the Interior has developed 20 unsuitability criteria in <br />accordance with SMCRA (43 CFR 3461). These criteria will be applied to <br />n11 new Federal cool leases prior td the lease sale and to all existing <br />inactive Federal coal leeses~rior to approval of n mining and recla- <br />mation plan for development of the lease. <br />METHODOLOGY <br />In compiling this report. all of the unsuitability criteria were applied <br />to the Federal lands. If a criterion was found to be applicable. maps ' <br />were developed to show the area involved. The mining plan was examined <br />to see if there would be surface effects from this operation to the arse <br />found to be unsuitable. If there were no surface effects for that srea, <br />the urea was considered suitable, Finally. after all the criteria were <br />examined, exceptions to the criteria were applied. <br />In this report, each criterion was grouped with the analysis of its <br />applicability, any maps developed and any app11ub1e exceptions. Final- <br />ly, a brief suosaary of the results of the analysis is presented. <br />DESCRIPTION OF THE FEDERAL LANDS INVOLVID <br />This unsuitability analysis and report is required as a part of the <br />process of review and approval of the Mt. Gunnison No. 1 mining and <br />reclamation plan. That plan was submitted in November 1979 to the Office <br />of Surface Mining (OSM) by ARCO Coal Company.' It describes a proposed <br />underground mining operation on Federal coal leases C-1362. C-117192 and <br />D-644569 and adjacent private lands. <br /> <br />T <br />