EPA Upholds Permits for Four Colorado Compressor Stations Amid Challenges
Published Date: 3/12/2026
Notice
Summary
The EPA said no to challenges against air pollution permits for Rocky Mountain Midstream’s four compressor stations in Colorado. This means the stations can keep operating under their current permits, with no new costs or changes for now. If anyone wants to fight this decision, they have until May 11, 2026, to take it to court.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
EPA Denies Objection Petitions
On December 8, 2025, the EPA Administrator denied petitions from the Center for Biological Diversity asking the EPA to object to Title V operating permit nos. 21OPWE436, 21OPWE439, 21OPWE433, and 21OPWE440. Those permits were issued by the Colorado Department of Public Health and Environment to Rocky Mountain Midstream, LLC for the Latham, Mustang, Auburn, and West Brighton Compressor Stations in Weld County, Colorado.
Deadline to Seek Judicial Review
The order states that anyone seeking judicial review of the portions of the EPA order that denied issues in the petitions must file a petition for review in the U.S. Court of Appeals for the appropriate circuit no later than May 11, 2026.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-10086 — Extending the Compliance Deadline for the PFOA and PFOS Maximum Contaminant Levels
The EPA is giving water systems more time to meet safety rules for two harmful chemicals, PFOA and PFOS, by extending the deadline from April 2029 to April 2031 if they ask for it. This helps water providers get ready without rushing, keeping our drinking water safe. The EPA wants your thoughts and will hold a public hearing in July 2026 to hear from everyone.
2026-10085 — Rescission of Regulatory Determinations and Removal of Related Provisions for Four PFAS Substances (PFHxS, PFNA, HFPO-DA (GenX), and the Mixture of These Three PFAS Plus PFBS)
The EPA is proposing to undo its rules for four PFAS chemicals (PFHxS, PFNA, GenX, and a mix including PFBS) in drinking water because the original process wasn’t done right. This means public water systems won’t have to monitor or treat these chemicals for now. People and water providers should weigh in by July 20, 2026, and a virtual hearing happens July 7.
2026-09895 — Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate
The EPA is updating rules for steam electric power plants to better control dirty water leaking from leftover coal waste. This change affects existing power plants and is expected to save up to $1 billion a year while protecting water quality. Comments on the proposal are open until June 17, 2026, so now’s the time to speak up!
2026-09524 — Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program
The EPA is updating rules about when companies can start building big projects that might affect air quality. Now, they can begin building parts that don’t release pollution before getting a full air permit, making things clearer and easier. This change mainly affects businesses planning major construction and could speed up projects without extra costs, but comments are due by June 29, 2026.
2026-09179 — Definition of Hazardous Waste Applicable to Corrective Action for Releases From Solid Waste Management Units; Withdrawal
The EPA has decided to cancel its plan to change the rules about what counts as hazardous waste for cleaning up pollution at certain waste sites. This means businesses and cleanup crews won’t have to deal with the confusing new rules that were proposed. The withdrawal takes effect immediately, so no extra costs or changes will happen right now.
2026-08750 — Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
The EPA is hitting the pause button again on some rules about a chemical called TCE, which is used in workplaces. This means certain limited uses of TCE won’t have to follow new restrictions just yet, while courts review the rules. If you work with TCE, this delay gives you more time before changes kick in, starting May 18, 2026.
Previous / Next Documents
Previous: 2026-04842 — Privacy Act of 1974; System of Records
The Department of Health and Human Services is updating its records system that tracks who gets paid or owes money to the agency. These changes clarify legal rules, add new ways to use the info, and fix old details. The updates start March 12, 2026, with some new uses kicking in April 13, 2026, and the public can comment until then.
Next: 2026-04844 — Clean Air Act Operating Permit Program; Order on Petitions for Objection to State Operating Permits for Terra Energy Partners Rocky Mountain, LLC-Mamm Creek Compressor Station and Bailey Compressor Station
The EPA said no to requests from an environmental group that wanted to block air permits for Terra Energy’s Mamm Creek and Bailey Compressor Stations in Colorado. This means the stations can keep operating under their current permits, with no new costs or changes for now. If anyone wants to challenge this decision, they have until May 11, 2026, to take it to court.