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._~, RULE 2.04.13(1) (a-f) Revised 12/6/02 C-81-019 ARR The species of plants seeded on Colowyo's 2002 reclamation areas follow the approved seed mixture located in Volume 1, page 2.05-44 through 2.05-45. _ Seed was purchased from Wind River Seed and a copy of the seed tag is included in Exhibit 6. The seed mixes identified in the invoice were used for 2001 reclamation. A map detailing the areas which topsoil was laid down and seeded is presented in Exhibit 7 of the ARR. The Division regulations contain consistent themes that mine operations and reclamation are to be conducted in such a way as to minimize adverse environmental impacts and ensure that reclaimed lands will support the approved postmining land use. The Division may take an enforcement action using a number of Rules if the Division determines that an operator has not met the commitments of an approved weed management plan or the Division determines a noxious weed infestation displays an increasing trend, due to a lack of effort by the operator. Colowyo applied pesticides to the land for the control of known weed species. Chemicals applied within the mine permit boundary include: Tordon, 2,4-D, and Roundup. RULE 2.04.13(2) Colowyo submits fill reports for the Streeter Fill, the West Pit Fill and the Section 16 Fill. The requirement to submit the Streeter Fill reports is located on page 4.09-2 of the mine permit. The completed 2001 reports are located in Exhibit 9 of this report. The requirement to submit the West Pit Fill reports is located in Volume 5B of the mine permit, Exhibit 19, page I a-4. The completed 2002 West Pit Fill reports are located in Exhibit 10 of this report. The requirement to submit the Section 16 Fill reports is located in Volume 56 of the mine permit, Exhibit 19, page II a-4. The completed fill reports are located in Exhibit 11 of this report. Sampling of regraded overburden is pertormed at a density of one sample per five acres of regraded area (PAP Exhibit 6, Item #4, Colowyo letter of January 4, 1983). Colowyo recognizes the potential for elevated SAR values (PAP page 2.04.6-9). Threshold SAR values for special handling are identified as "suspect levels". The SAR "suspect level" at Colowyo is 15 (PAP, Exhibit 6, Item #4, Colowyo letter of January 4, 1983). Remedial measures consist of additional samples to determine the extent of the suspect material (PAP, Exhibit 6, Item #4, Colowyo letter of January 4, 1983). If the aerial extent is greater than one acre, it was once to be covered with at least five feet of acceptable material. This requirement was reduced to 18 inches of topsoil cover (PAP, Exhibit 6, Item #4, Division letter of January 24, 1983). Colowyo sampled 18 locations of regraded overburden during 2001. One sample exhibited SAR levels over 15. The Division was made award of this elevated SAR level during the November 27, 2002 on-site inspection and followed-up with Colowyo in a November 30, 2001 correspondence letter. The letter and regraded overburden sampling results is located in Exhibit 12 of this ARR. The Revegetation Monitoring Report was prepared by ESCO Associates of Boulder, Colorado and is located in Exhibit 13 of this ARR. Page 1 of 1 CF 4.3.1