Notice2026-06905

Clean Air Act Operating Permit Program; Order on Petition for Objection To State Operating Permit for Caerus Piceance, LLC-Hunter Mesa Water Treatment Facility

Primary source

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Published
April 10, 2026

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) Administrator signed an order dated November 19, 2025, denying a petition dated March 27, 2025, from the Center for Biological Diversity (CBD). The petition requested that the EPA object to a Clean Air Act operating permit issued by the Colorado Department of Public Health and Environment (CDPHE) to Caerus Piceance, LLC for its water treatment facility, Hunter Mesa Water Treatment Facility, located in Garfield County, Colorado.

Full Text

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<title>Federal Register, Volume 91 Issue 69 (Friday, April 10, 2026)</title>
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[Federal Register Volume 91, Number 69 (Friday, April 10, 2026)]
[Notices]
[Page 18456]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-06905]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-13172-01-R8]


Clean Air Act Operating Permit Program; Order on Petition for 
Objection To State Operating Permit for Caerus Piceance, LLC--Hunter 
Mesa Water Treatment Facility

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of final order on petition.

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SUMMARY: The Environmental Protection Agency (EPA) Administrator signed 
an order dated November 19, 2025, denying a petition dated March 27, 
2025, from the Center for Biological Diversity (CBD). The petition 
requested that the EPA object to a Clean Air Act operating permit 
issued by the Colorado Department of Public Health and Environment 
(CDPHE) to Caerus Piceance, LLC for its water treatment facility, 
Hunter Mesa Water Treatment Facility, located in Garfield County, 
Colorado.

FOR FURTHER INFORMATION CONTACT: Julia Witteman, EPA Region 8, 
telephone number: (303) 312-6156, email address: 
<a href="/cdn-cgi/l/email-protection#0176687575646c606f2f6b746d6860416471602f666e77"><span class="__cf_email__" data-cfemail="582f312c2c3d35393676322d343139183d2839763f372e">[email&#160;protected]</span></a>. The final order and petition are available 
electronically at: <a href="https://www.epa.gov/title-v-operating-permits/title-v-petition-database">https://www.epa.gov/title-v-operating-permits/title-v-petition-database</a>.

SUPPLEMENTARY INFORMATION: The EPA received a petition from CBD dated 
March 27, 2025, requesting that the EPA object to the issuance of 
operating permit no. 03OPGA267, issued by CDPHE to Caerus Piceance, LLC 
for the Hunter Mesa water treatment facility. On November 19, 2025, the 
EPA Administrator issued an order denying the petition. The order 
itself explains the basis for the EPA's decision.
    Sections 307(b) and 505(b)(2) of the CAA provide that a petitioner 
may request judicial review of those portions of an order that deny 
issues in a petition. Any petition for review shall be filed in the 
United States Court of Appeals for the appropriate circuit no later 
than June 9, 2026.

Cyrus Western,
Regional Administrator, Region 8.
[FR Doc. 2026-06905 Filed 4-9-26; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on April 10, 2026.

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