Laserfiche WebLink
October 4, 2022 C-1981-019/Colowyo Coal Mine ZTT <br /> ENFORCEMENT ACTIONS/COMPLIANCE <br /> Infraction Number: CV2022001 <br /> Inspection Date: October 4,2022 <br /> Date Issued: <br /> Primary Topic: Hydrologic Balance <br /> Secondary Topic: Off-site Damage <br /> Tertiary Topic: <br /> Description: Failure to construct permanent post-mining drainage channels and temporary <br /> channels in accordance with the approved reclamation plan. <br /> Abatement#: 1 <br /> Abatement Due Date: 12/31/2022 <br /> Abatement Due Extended Date: <br /> Abatement Date: <br /> Abatement Description: Clean sediment transported offsite and repair both the Final East Pit <br /> Ditch and South Collection Ditch to fix erosion problems that have occurred,including the necessary <br /> riprap,to ensure runoff safely flows to the Prospect Pond as currently designed. <br /> Abatement#: 2 <br /> Abatement Due Date: 12/31/2022 <br /> Abatement Due Extended Date: <br /> Abatement Date: <br /> Abatement Description: Submit to the Division a complete Technical Revision providing a new <br /> design for the Final East Pit Ditch that would safely pass the peak runoff resulting from a 10-year,24- <br /> hour precipitation event which would not contribute to adverse impacts to the hydrologic balance in the <br /> mine and associated offsite areas. <br /> Number of Partial Inspection this Fiscal Year: 3 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 4 of 20 <br />