GENERAL54560 - Laserfiche WebLink

Home Browse Search

Stream Channel Diversions The drainage from the draw north of the bench was channeled across the former location of Pond No. 1, 150 to 200 feet west of the channel's original location. Due to the location of the stabilized bench, completed during the fall of 1984 as part of the mine bench stabilization project, the north draw needed to be relocated. This wide, 0.8 percent grade channel was vegetated and did not require riprap. This is an ephemeral stream and drains an area of less than one square mile. Hubbard Creek was diverted around Pond No. 1 during the mining operation. With the removal of Pond No. 1, Hubbard Creek was restored to its previous channel. The channel did not require major reconstruction. Up to 2,000 cubic yards of gravel from the pond were used on the reclaimed banks along the creek as additional erosion control. The Division proposes to approve the North Draw permanent diversion. This diversion is consistent with applicable state law, will not diminish downstream water rights and meets the requirements of Rule 4.05.4 (4.05.4(4)). Sedimentation Ponds The Blue Ribbon Mine has constructed three sediment ponds, Pond Nos. 3, 4, and 5. Previously, the site contained Pond No. 1, which has been reclaimed and replaced by Pond No. 5, and Pond No. 2, which was eliminated with the bench stabilization project. The ponds have been designed, constructed and maintained in accordance with the requirements of 4.05.6 and 4.05.9. The location of these ponds can be found in Exhibit H-1 and Exhibit Z. The ponds are located as near as possible to the disturbed area and are not located within perennial streams according to 4.05.6(1)(6). Acid-forming and Toxic-forming Spoil The Blue Ribbon Mine extracted coal from the E seam, which is an extremely uniform and clean seam. The underground development waste that was produced was placed at the Red Canyon Mine's refuse disposal area. There was minimal waste material and did not require any special handling 4.05.8(3). Impoundments Refer to the section regarding sediment ponds (4.05.9) G. Surface and Groundwater Monitoring The applicant will conduct monitoring of ground water in a manner approved by the Division. The ground water monitoring -16-