Notice of Application for State Air Quality Permit AQ0483MSS04 Columbia River Carbonates, Calder Mine

The Alaska Department of Environmental Conservation (ADEC) has made a preliminary decision to approve Columbia River Carbonates’ (CRC) application for Air Quality Control Minor Permit AQ0483MSS04 for the Calder Mine under Alaska Statutes 46.14 and regulations 18 AAC 50. Applicant: Columbia River Carbonates, 300 N. Pekin Road, Woodland, WA 98674 Location: Prince of Wales Island, Alaska Activity: CRC’s application is classified under 18 AAC 50.508(6) for revising and rescinding the terms and conditions of a Title I permit. CRC is revising the emissions unit inventory. Emissions: The potential annual emissions of regulated air pollutants will increase by 1.8 tpy for NOx, 7.0 tpy for CO, 5.6 tpy for PM-10/PM-2.5, 3.0 tpy for VOC, and 3.4 tpy for SO 2 due to the owner requested limit in the permit. 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, preliminary minor permit and technical analysis report (TAR) are available at the following offices: ADEC Air Permits Program, 410 Willoughby Avenue, 2nd floor, Juneau, AK 99801, 907-465-5100 ADEC Air Permits Program, 555 Cordova Street, Anchorage, AK 99501, 907-269-7577 The preliminary permit documents are also available at: http://dec.alaska.gov/Applications/Air/airtoolsweb/AirPermitsApprovalsAndPublicNotices/ Opportunity for Public Participation: Any interested person may present written statements relevant to the draft documents, as long as they are received by the close of the public comment period. 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 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 Claire Fishwick at 907-465-5066 or TDD Relay Service 1-800-770-8973/TTY or dial 711 by the 15th day of this public comment period to ensure that any necessary accommodations can be provided. Comments relevant to the draft operating permit may be submitted electronically via ADEC’s public notice site at https://aq.alaskadec.commentinput.com/?id=fRgMk or to Kathie Mulkey at ADEC’s Anchorage office, or by email to kathie.mulkey@alaska.gov . Comments must be received by close of public comments period at 11:59 PM Alaska time on September 12, 2022.