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-== - iii iiiiiiiiuiiiiii STATE OF COLOlZADO DIVISION OF MINERALS AND GEOLOGY Department vi Natural Resources 1 313 Sherman ]L, Roum 215 Dern~er. CO AU203 Phone: 1303) 8553567 FAX.~}031832~8706 pf f0~\ ~~,~b~ 0 ~~~ Roy Romer Governor Michael B. Long Drv~smn Direnor DATE: February 18, 1993 ~ T0: Michael B. Long, Director _~=> , ~./ . , FROM: Steven G. Renner, Coal Program Supervisor/ RE: Patterns of Violation, Show Cause Order and Bond Forfeiture, Trinidad Basin Mining Company, Trinidad Basin Mine, Permit No. C-81-048 The Division has determined that a Pattern of Violations as defined in Rule 5.03.3121(al has occurred at the Trinidad Basin Mine in Las Animas County. Seven Notices of Violation have been issued to Trinidad Basin Mining Company within the last twelve months. All have either been upheld in Assessment Conferences or have not been contested by the operator. All seven violations were issued during two separate inspections that occurred in June and July of 1992. Six of the violations cited non-compliance of the Performance Standards pertaining to protection of water quality and maintenance of hydrologic structures. The seven Notices of Violation are: 1 . NOV C-92-013 (June 29, 1992 inspection) issued on July 16, 1992 for failure to maintain sediment pond 15-P7. The discharge was out of compliance with NPDES standards. The rules cited were 4.05.2171, 4.05.2181 and 4.05.61311a1 and Ibl. The abatement was to excavate sediment from the pond and recertify. The abatement deadline dates were extended several times due to bad weather. The abatement work has yet to be started. 2. NOV C-92-014 (June 29, 1992 inspection) issued July 16, 1992 for allowing surface water runoff from a disturbed area discharging offsite without treatment. The rules cited were 4.05.2(1) and 4.05.2(21. The abatement was to reestablish a ditch. The abatement work was completed on time without extensions and the NOV was terminated. 3. NOV C-92-020 (July 28, 1992 inspection) issued August 14, 1992 for failure to maintain the primary dewatering devices for sediment ponds 15-P10, 15-P11 and 15-P12. The rules cited were 4.05.61311a1 and Icl. The abatement work was to unclog primary spillways and install trash guards. The abatement deadline dates were extended several times due to bad weather. The primary spillways were unclogged within the first abatement deadline but work on the trash guards has not been completed. 4. NOV C-92-021 (July 28, 1992 inspection) issued on August 14, 1992 for failure to maintain the principal spillways of permanent impoundments 15-P1, 15-P2, 15-P8, 15-P20 and 22-P17. The rule cited was 4.05.91111e1. The abatement work was to unclog the primary spillways and install trash guards. There have been several extensions of the abatement deadline dates. The primary spillways were unclogged within the first abatement deadline, but not all of the trash guards have been installed yet.