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Colowyo Coal Company <br />2017 Annual Reclamation and Hydrology Report <br />SECTION 2 - CDRMS ARR FORM AND SUPPORT DOCUMENTS <br />RULE REQUIREMENT <br />RULE 2.04.13(1) (a -f) <br />2.04.13(1) by April 1, or other such date as agreed on, each permittee shall file an annual <br />reclamation report covering the previous calendar year for all areas under bond. The <br />report shall include, but not be limited to, text, discussion and maps which address: <br />• the name and address of the permittee and permit number <br />• location and number of acres disturbed during that year <br />• location and number of acres backfilled and graded during that year <br />• location and number of acres topsoiled during that year <br />• the species, location and number of acres of vegetation planted during that year, <br />including any augmented seeding or cultural practices <br />• location, number of acres and date of planting for all previously re -vegetated <br />areas <br />GENERAL DISCUSSION <br />During 2017, 399.1 acres of additional disturbance to native areas occurred onsite. Also <br />occurring in 2017, 126.3 acres were backfilled and graded and 45.4 acres were topsoiled. <br />Colowyo permanently seeded and/or planted 45.4 acres in 2017. Through then end of the <br />year 2017, 1,178.2 acres have been reclaimed at Colowyo. A total of 144.1 seeded acres <br />from 1995 through 2007 have been in existence for greater than 10 years with 1,135.5 <br />acres being in existence for 10 years or less. 879.7 acres within the permit area are in <br />long-term mining or reclamation facilities and the active mining area is comprised of <br />1,525.2 acres (Please see Figures 2-1 and 2-2). <br />ANNUAL MAP <br />Exhibit 2A illustrates the general history and activities on the reclaimed areas for the East <br />Pit, West Pit, and South Taylor Pit. Exhibit 2B illustrates the same activities but for the <br />Collom Area, and Exhibit 2C depicts the Gossard Loadout Area. The following items are <br />illustrated on the map: <br />• Permit Boundary <br />• Shrub Establishment Area <br />• Reclaimed Areas <br />• Regraded Areas as of 2017 <br />• Monitor Well (After 2007) <br />• Excess Spoil Fills <br />• 2017 Disturbance Areas <br />Page 17 <br />