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ENFORCEMENT ACTIONS/COMPLIANCE <br /> Infraction Number: CV2022001 <br /> Inspection Date: October 4,2022 <br /> Date Issued: October 12,2022 <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: 1/10/2023 <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: 1/10/2023 <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 /> The Division has currently received and reviewing the Colowyo Mine Technical Revision No. 158.This <br /> revision is proposing to redesign the Prospect watershed and Final East Pit Ditch in association with the <br /> abatement process of CV2022001. <br />