PERMFILE71404 - Laserfiche WebLink

Home Browse Search

I • Oakridge Energy, Inc., will endeavor to practice every safety precaution with respect to the storage, handling, and use of explosives. The State, M.S.H.A. and other federal regulations will be complied with. 2.05.3(7) Coal Handling Structures The structures associated with coal handling have been identified and discussed previously in this permit. These structures include two raw coal stockpiles and an in-pit staging azea with crusher/screener equipment. Raw coal which requires ash removal or other cleaning will be screened, crushed and separated in the pit. Coal not requiring ash removal will be trucked directly to the staging area. The staging azea will be used for surge capacity and blending for the customer. The coal will be trucked from the pit azea to the staging area where it will be transported on highway trucks to markets. 2.05.3(8) Coal Processing Waste Any coal processing waste will be kept within the confines of the pit or returned to the pit. No refuse or cog! processing waste will be impounded and no coal refuse or reject will accumulate outside of the pit. The test for coal reject were performed by Core Labs, Inc. in Denver, Colorado (Appendix 4-3). Quality analysis of typical coal reject to be returned to the pit has been included in Table 4-1. • The processing waste analysis indicates that sulfur may be present in various forms but in low quantities, i.e. two to three percent (2 to 3%). This low quantity is not expected to be acid forming because it is not acid forming in the coal seams. Note, the analysis of the groundwater samples in Appendix 4-3A. No slurry ponds or wash slurries are proposed as a part of the mining in this plan. No coal fines are expected to be generated as a part of the mining activity. The coal fines, as they exist in the coal seams, aze neither acid nor toxic forming. If pit dewatering is necessary, the water will be pumped to Pond No. 1 and dischazged in compliance with the NPDES Permit. The sulfur content of the coals and their associated over and underlying strata, range between one and three percent. Abandoned coal mine records for the Durango, Colorado area document no problems with acid mine waters and burned spoil piles. Both of these facts indicate that the coal processing wastes, which will be generated by the Carbon Junction Mine, have a limited potential to be acid-forming and have no reasonable probability of being combustible when placed in the overburden. Settling Ponds No coal settling ponds are planned for the subject operations. TROB, TRl1(v1.0) 5-21 Revised 9/97, 08/02