REQUEST FOR PUBLIC COMMENTS
ON DRAFT AIR PERMIT
REGULATING THE EMISSIONS OF AIR POLLUTANTS
(Docket No. 25-CA-PA-19)
Pursuant to Hawaii Revised Statutes (HRS), Chapter 342B-13 and Hawaii Administrative Rules (HAR), Chapter 11-60.1, the Department of Health, State of Hawaii (DOH), is requesting public comments on the following DRAFT PERMIT presently under review for:
Covered Source Permit (CSP) No. 0912-01-C
Application No. 0912-01 for Initial Permit
Ukiu Energy, LLC
Six (6) 7.48 MW (Nominal) Wartsila Engine Generators
Located At: Pulehu Road and Upper Division Road, Kahului, Island of Maui
UTM: Zone 4Q; 768,845 m E, 2,307,383 m N (NAD-83)
The DRAFT PERMIT is described as follows:
CSP No. 0912-01-C will grant conditional approval to Ukiu Energy, LLC to construct and operate six (6) internal combustion engine generators in Kahului, Maui. Each of the engine generators has a nominal rating of 7.48 MW and can fire both liquid fuels and gaseous fuels. The engine generators will each be equipped with a selective catalytic reduction system and an oxidation catalyst to control emissions and have continuous emissions monitoring systems for nitrogen oxide and carbon monoxide emissions. The engine generators are subject to 40 CFR Part 60, Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines and 40 CFR Part 63, Subpart ZZZZ – National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines.
The ADMINISTRATIVE RECORD, consisting of the APPLICATION and non-confidential supporting material from the applicant, the permit review summary, and the
DRAFT PERMIT, is available for public inspection online at:
http://health.hawaii.gov/cab/public-notices/ and at the following location during regular office hours, Monday through Friday, 7:45 a.m. to 4:15 p.m.:
Oahu:
State of Hawaii
Clean Air Branch
2827 Waimano Home Road, #130
Pearl City, Hawaii 96782
Maui:
Maui District Health Office, Department of Health
54 High Street, Room 300, Wailuku, Maui
All comments on the draft permit must be in writing, addressed to the
Clean Air Branch at the above address and must be postmarked or received by December 20, 2025.
Any person may request a public hearing by submitting a written request that explains the party’s interest and the reasons why a hearing is warranted. The request for a public hearing must be received by December 9, 2025. If requested, a public hearing will be held at 6:00 p.m. on December 15, 2025. Information on the public hearing will be posted on the Department of Health’s website at: https://health.hawaii.gov/cab/public-notices/ at least thirty (30) days in advance of the scheduled hearing date. If no request for a public hearing is received, a cancellation notice will be posted on the Department of Health’s website on December 12, 2025.
Interested persons may obtain copies of the administrative record or parts thereof at a copying cost of five (5) cents per page. Please send written requests to the Oahu office of the Clean Air Branch listed above or call Ms. Kori Chun at the Clean Air Branch at (808) 586-4200.
Comments on the draft permit should address, but need not be limited to, the permit conditions and the facility’s compliance with federal and state air pollution laws, including: (1) the National and State Ambient Air Quality Standards; and (2) HRS, Chapter 342B and HAR, Chapter 11-60.1.
DOH invites comments regarding Native Hawaiian traditional and customary rights that may be affected or impaired by the proposed permit.
DOH will make a final decision on the permit after considering all comments and will send notice of the final decision to each person who has submitted comments or requested such notice.
Kenneth S. Fink, MD, MGA, MPH
Director of Health
(SA1510446 11/13/25)
