Copper Mine Seeks Modification to Existing Safety Standards
Published Date: 1/12/2026
Notice
Summary
Kennecott Utah Copper LLC asked to change some mine safety rules to use a different method that keeps miners just as safe. This change could affect how safety is managed at their mine and might save time or money. Everyone has until February 11, 2026, to share their thoughts on this petition.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 0 costs, 2 mixed.
36-Hour Bottled Water Requirement
The petition’s alternative would require maintaining a minimum of 4.5 liters of potable water per person in sealed individual portion-sized bottles in each refuge chamber to support maximum occupancy for at least 36 hours. The petitioner also requires that expiration dates be visible and that Kennecott replace water before the expiration date.
Equipment, Inspections, and Training Rules
The petition states refuge chambers are equipped with 36-hour battery backup, atmospheric monitoring and air purification systems, and MARCISORB CO2/CO absorber cartridges. It also proposes monthly inspections, manufacturer-trained and -certified maintenance personnel, and OEM servicing every 4 months, plus training for all underground personnel on refuge use and water-conservation procedures.
Allow Bottled Water in Refuge Areas
Kennecott asked MSHA to allow commercially purchased sealed drinking water in refuge areas instead of providing potable water through waterlines, as required by 30 CFR 57.11052(d). The request applies to the Kennecott Keystone Underground mine in Salt Lake County, Utah, which the petition describes as having 14 refuge chambers and a normal underground work crew of about 65 miners per shift.
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Key Dates
Department and Agencies
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Previous / Next Documents
Previous: 2026-00351, Petition for Modification of Application of Existing Mandatory Safety Standards
Greenbrier Smokeless Coal Mining wants to change some safety rules at their mine to use a different method that keeps workers just as safe. This petition affects miners at their West Virginia site and could save the company time or money while still protecting everyone. Comments on this request must be sent by February 11, 2026, so don’t miss your chance to weigh in!
Next: 2026-00353, Petition for Modification of Application of Existing Mandatory Safety Standards
Consol Pennsylvania Coal Company asked to change some mine safety rules to use a different method that keeps miners just as safe. This could affect how safety is managed at their mines and might save time or money without risking anyone’s well-being. Everyone has until February 11, 2026, to share their thoughts on this petition.