1987-12-01_PERMIT FILE - C1981017 (169)

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CAID-CPHTI14ENT RESOURCES, INC. PRODUCERS OF THE FAMOUS COAL BASIN COKING COAL BOX 158 CARBONDALE, COLORADO 81623 TELEPHONE NTINENT RESOURCES.INC. (303)963-2581 PLAINFIELD ROAD-SUITE 220 TWX WILLOW BROOK.ILLI NOI S W521 Y10 929 8897 December 30, 1983 T" 45-Ma Mr. Jim Herron Mined Land Reclamation 1313 Sherman Street Denver, Colorado 80203 Re: Coal Basin Mines Permit C-017-81 Condition No. 3: Certification of Sediment Ponds Dear Mr. Herron: This letter attests to the certification of our sediment pond as being built as designed. There have been several changes and modifications to the original design by Fleming in 1978. Please refer to enclosed Table II-B-App. 7 , Att . 3-4 Revised Sedimentation Capacities— • 1982 and Physical Survey of Sediment Ponds , Nov. 1983 update. I believe a brief explanation might be in order concerning each pond. 001 PREP PLANT 3 .89 ACRES. With the reconstruction of the access road with rock and gravel and installation of the new 18" steel connecting pipe between ponds 2 and 3 , we believe this system will be in excellent working order. The impact of the new bin transfer point on this system will be very small because the site is small and is mostly rock and gravel. 006 REFUSE S. 0. 25 ACRES. This pond was deepened and enlarged in October , 1983 and the entire area above it , up to the conveyor belt , was re-seeded and mulched, including the road. With a good growing season in 1984 the area above this pond will be 100 percent revegetated. 007 REFUSE N. 1 . 39 ACRES. This pond was completely dug out in October, 1963 and even tough it is slightly smaller than ori- ginally constructed ( . 16 acre) , it is in series with 009 , which is some 1.83 acres larger than design. The area above 007 will be topsoiled, seeded and mulched, 100 percent , in 1984 . II 2 -