Bingham/Magna Ditch Soils Investigation Five Year Review Superfund Documents Completion of the Kennecott South Zone Five Year Review for Operable Units 3, 6, 7, 17 and 18 Explanation of Significant Differences, August 2003 Fact Sheet, October 2006 Kennecott Utah Copper’s Final Design for Remedial Action at South Facilities Groundwater Appendix A: Post Closure Report-December 2002 …
Read MoreHistoric mining activities in the Oquirrh Mountains in southwest Salt Lake County led to the creation of two groundwater plumes in the principle aquifer of southwest Salt Lake County (Contaminated Zones Map). The two groundwater plumes contain elevated concentrations of sulfate and total dissolved solids (TDS) above the State of Utah primary drinking water standards. …
Read MoreCompletion of the Five Year Review Update: November 29, 2010 The EPA and UDEQ completed the Five Year Review of the selected remedies for Operable Units 1, 4, 5, 10, and 11 of the Kennecott South Zone in September 2010. During the review, the EPA and UDEQ examined current information, carried out site inspections, and …
Read MoreCompletion of the Kennecott South Zone Five Year Review for Operable Units 3, 6, 7, 17 and 18 The Utah Department of Environmental Quality, Division of Environmental Response and Remediation (UDEQ/DERR), in cooperation with the U.S. Environmental Protection Agency Region VIII (EPA), has conducted a Five Year Review of the Kennecott South Zone Superfund Site—Operable …
Read MoreAugust 31, 2004 Introduction to the Comment Response Summary Responses to Common Comments Process for Public Involvement Groundwater and Aquifer Characterization in Zone A and Zone B Support for Groundwater Cleanup Sulfate Plume Treatment Zone A Acid Plume Treatment Zone B and Shallow Aquifer (Lost Use) Groundwater Cleanup Use of Tailings Impoundment for Disposal of …
Read MoreJune 11, 2004 NRD Joint Proposal Narrative and Tables NRD Joint Proposal Figures Changes to Figures Figure 2.4A Jordan Valley Water Conservancy District Customers and Boundaries Figure 2.4B Jordan Valley Water Conservancy District Water System Figure 4.1A S.W. Jordan Valley Highest Sulfate Concentration Data Figure 5.2A Proposed Groundwater Extraction and Treatment System Figure 5.4A Zone …
Read MoreJump to: Administrative Documents Annual Reports Construction and Testing Stakeholder Forum Meetings and Materials Related Documents Administrative Documents Natural Resource Damage Claim 1995 Natural Resource Damage Consent Decree Comment Response Summary August 31, 2004 (Due to the length of this document, it is broken down into topical chapters.) Findings and Conclusions August 31, 2004 June …
Read MoreOn a regular basis, DEQ, the District, and Kennecott sit down with representatives of various community groups to provide project updates. The Stakeholder Forum assists with the dissemination of the information about the various CERCLA and NRD project aspects at Kennecott Utah Copper. Next Meeting The next meeting of the Stakeholder Forum will be held …
Read MoreProject 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) …
Read MoreJump to: Current Activities and Recent Decisions Public Participation 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 …
Read MoreOn 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, …
Read MoreAddition 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 …
Read MoreThe 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, …
Read MoreQuarterly Reports: Bingham Canyon Mine Particulate Matter Monitoring Data: Hi-Country Estates PM10 Concentrations (ug/m,3) Statistics April 2013 May 2013 June 2013 Monthly Mean 13.343 19.087 22.839 Maximum Daily PM10 31.109 43.804 37.289 2nd Highest Daily PM10 31.091 37.349 36.199 Quarterly Arithmetic Mean 18.718 Statistics July 2013 August 2013 September 2013 Monthly Mean 27.126 28.765 22.547 …
Read MoreJump 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 Complete and Final Notice of Intent Final Notice of Intent Cover—1.0 Introduction 2.0 Description of Emission Sources 3.0 Emissions Summary 4.0 Offset Requirements Evaluation …
Read MoreBy 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 …
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