Notice of Application for State Air Quality Permit AQ1727MSS03 Revision 1 for Harvest Alaska LNG, LLC’s Liquified Natural Gas Facility

The Alaska Department of Environmental Conservation (ADEC) has made a preliminary decision to approve Harvest Alaska LNG, LLC’s application for Air Quality Control Minor Permit AQ1727MSS03 Revision 1 for the Liquefied Natural Gas Facility. Applicant : Harvest Alaska LNG, LLC 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Location: Latitude 70.2468º North; Longitude 148.5678º East Prudhoe Bay, Alaska Activity: Harvest Alaska LNG, LLC applied for a minor permit under 18 AAC 50.508(6) to change the surrogate limit in Condition 11.1 of Minor Permit AQ1727MSS03 and associated MR&R from 4,500 hours below 50% load to 4,500 hours out of SoLoNO X mode per consecutive 12-month period. Emissions: There is no change in potential emissions from this permitting action. The potential annual emissions of regulated air pollutants at the stationary source will not exceed: 118.50 tons of Nitrogen Oxides, 232.48 tons of Carbon Monoxide, 11.26 tons of Particulate Matter, 57.45 tons of Sulfur Dioxide, 30.06 tons of Volatile Organic Compounds, 144,084 tons of Carbon Dioxide Equivalent emissions, and 2.0 tons of Hazardous Air Pollutants (HAP), with highest individual HAP ( n-Hexane ) estimated at 1.4 tons. The total annual potential emissions of regulated air pollutants, other than greenhouse gases, are 449.76 tons. ADEC Preliminary Review: Based on review of the application, ADEC drafted a preliminary permit decision for this project under AS 46.14 and 18 AAC 50. Available Information: Copies of the permit application(s), ADEC’s preliminary minor permit and technical analysis report (TAR) are available at the following offices: ADEC Air Permits Program, 410 Willoughby Avenue, Suite 303, Juneau, Alaska 99801 ADEC Air Permits Program, 555 Cordova Street, Anchorage, AK 99501 These documents are also available at ADEC’s website at: http://dec.alaska.gov/Applications/Air/airtoolsweb/AirPermitsApprovalsAndPublicNotices/ Opportunity for Public Participation: Any interested person may present written statements relevant to the preliminary decision within 30 days after the first publication date. ADEC will consider all comments received and make any changes ADEC finds beneficial or necessary to assure compliance with 18 AAC 50 or state law. ADEC will issue a final decision to issue or deny the permit after the close of the public comment period. ADEC complies with Title II of the Americans with Disabilities Act (ADA) of 1990. If you are a person with a disability who may need a special accommodation in order to participate in this public process, please contact ADA Coordinator Kristin Mabry, kristin.mabry@alaska.gov , 1-907-334-0884; Alaska Relay Service/TTY/TDD 1-800-770-8973; or dial 711 by the 15 th day of this public comment period to ensure that any necessary accommodations can be provided. Comments relevant to the preliminary minor permit may be submitted electronically via ADEC’s public notice site at https://dec.alaska.gov/Applications/Air/airtoolsweb/FormalComments , or to Dave Jones by mail to PO Box 111800, Juneau, AK 99811, or by email to dave.jones2@alaska.gov and dec.air.comment@alaska.gov . Comments must be received by close of public comments period at 11:59 p.m. Alaska time on July 23, 2026. Except for comments classified under AS 46.14.520, all public comments submitted during the public comment period can be viewed at https://dec.alaska.gov/Applications/Air/airtoolsweb/AirPermitsApprovalsAndPublicNotices after the public comment period. Attachments, History, Details Attachments None Revision History Created 6/23/2026 3:03:11 PM by jfrintala

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  kristin.mabry@alaska.gov