Category: Public Notices Archive

  • Permit Modification and East Waste Rock Extension UGW350010:
    Kennecott Utah Copper LLC

    Project Summary Kennecott Utah Copper (KUC) is proposing to extend the footprint of the East Waste Rock Dumps to accommodate additional waste rock from mining operations. This project will require the relocation and reconstruction of the Eastside Collection System (ECS), the water collection and capture system for the dumps. The East Waste Rock Extension (EWRE)…

  • Cornerstone (Kennecott’s Expansion Project):
    Kennecott Utah Copper LLC

    Introduction In 2011 Kennecott Utah Copper LLC announced a proposal to expand the life of its Bingham Canyon Mine located in the southwest Salt Lake County. The expansion project, called “Cornerstone,” included widening the Bingham Canyon pit to accommodate operations focused on the mining and processing of ore located on the southeast margin of the…

  • Approval Order Modification Granted: Cornerstone:
    Kennecott Utah Copper LLC

    On June 27, 2011, the Division of Air Quality has approved Kennecott’s request to modify its Approval Order, outlined in a Notice of Intent (NOI). The NOI centered on a requested increase in the limit of the material moved from 197 to 260 million tons per year. The public comment period ended on March 20,…

  • Concentrator Request: Cornerstone:
    Kennecott Utah Copper LLC

    Addition of an Ore Grinding Line and an Ore Sorting Plant Public comment is being sought through August 18, 2011 on Kennecott’s request to install and operate a fifth ore grinding line and an ore sorting plant at the Copperton Concentrator. The new equipment will consist of an ore sorting plant with a baghouse, a…

  • Modification of Molybdenum Autoclave Process (MAP) Plant:
    Kennecott Utah Copper LLC

    The MAP facility is currently under construction, and commissioning is expected to start in 2013. Public comment is being sought through March 11, 2013 on Kennecott’s request to modify the design of the MAP plant. The design changes have resulted in the modification of the cooling tower. Kennecott will also add a natural gas-fired boiler,…

  • Document Repository: Cornerstone:
    Kennecott Utah Copper LLC Projects

    Jump to: Approval Order Issued Air Quality SIP Amendment This page provides links to documents associated with the various regulatory decisions by DEQ. Approval Order Issued (June 27, 2011) Final Permit (647 KB) Complete and Final Notice of Intent Final Notice of Intent (63MB) Cover—1.0 Introduction (384 KB) 2.0 Description of Emission Sources (72 KB)…

  • SIP Amendments: Cornerstone:
    Kennecott Utah Copper LLC

    By a vote of 5-4 in its May 4, 2011 meeting, the Air Quality Board approved the Amendment to the Utah State Implementation Plan, Emission Limits and Operating Practices, Section Ix.H.2.h, and to amend Rule R307-110-17, Section IX and Part H. The issue before the Board was whether or not the 2005 PM SIP (currently…

  • CERCLA (Superfund) Projects: Five Year Reviews:
    Kennecott Utah Copper LLC Projects

    Some of the selected remedies for the operable units of the Kennecott Southand North Zones have allowed waste to be left in place above an unrestricted exposure and unrestrictive land use standard, for the particular contaminants of concern. As such, the EPA is required, on a periodic basis, to review the selected remedies, assess whether…

  • Bingham/Magna Ditch Soils Investigation:
    Kennecott Utah Copper LLC

    Jump to: Potential Risks Access to Sample Yards Site History Updates Additional Information Contacts Related Links Q & A The Utah Department of Environmental Quality (UDEQ) and the United States Environmental Protection Agency (EPA) are conducting an investigation of arsenic contaminated soil sediments associated with the former Bingham-Magna Ditch, a historic mining drainage canal located…

  • Questions and Answers:
    Bingham/Magna Ditch Soils Investigation:
    Kennecott Utah Copper LLC

    Background What is the Bingham-Magna Ditch? In 1930 the Utah Copper Company, a predecessor of Kennecott Utah Copper Corporation (Kennecott), constructed a ditch to transport waste water from copper extraction facilities in the Bingham Mine area to the tailings pond and mining mills northwest of Magna. The canal was abandoned and filled in by the…

  • Kennecott Utah Copper LLC

    The operational and environmental cleanup activities at Kennecott Utah Copper LLC’s (Kennecott) Bingham Canyon Mine, Copperton Concentrator, Smelter, Refinery, Tailings Facility and the various ancillary facilities are regulated under a number of federal and State programs with authority to oversee the work pursued by Kennecott and other third parties. The federal and State agencies draw…

  • Ensign-Bickford Company

    2023 Public Notice: Water Quality Ensign Bickford Company, UT0025283 2020 Public Notice: Water Quality Ensign Bickford Company, UT0025283 2019 Public Notice: Water Quality Ensign Bickford Company, UT0025283 2014 Public Notice: Water Quality Ensign Bickford Company, Permit UT0025283 The Ensign-Bickford Company (EBCo) manufactured explosives at the old Trojan plant near the communities of Mapleton and Spanish…

  • Waste Permit:
    Ensign-Bickford Company

    The Ensign-Bickford Company operated an explosive manufacturing plant near the cities of Mapleton and Spanish Fork, Utah from the 1940’s until February of 2006. Prior to the closing of the plant, Ensign-Bickford generated waste explosives as a result of manufacturing operations. Ensign-Bickford had interim status for the on-site treatment of these reactive wastes. Permitting Prior…

  • Soil Cleanup:
    Ensign-Bickford Company

    Menu Overview and Public Notices Waste Permit Soil Cleanup Public Information Work Plan Photos Questions For more information, contact Paige Walton (pwalton@utah.gov).

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