NOTICE OF PROPOSED REISSUANCE OF AN

ALASKA POLLUTANT DISCHARGE ELIMINATION SYSTEM GENERAL PERMIT FOR FACILITIES RELATED TO OIL AND GAS EXPLORATION PRODUCTION AND DEVELOPMENT IN THE NORTH SLOPE BOROUGH

A Draft Permit, is available for review. For inquiries or to request copies of documents, contact:

ADEC Contact:  Nick Zeigler

Alaska Department of Environmental Conservation

Division of Water - Wastewater Discharge Authorization Program

555 Cordova Street Anchorage, AK 99501

Office: (907) 269-3051 | Fax: (907) 269-3487

nick.zeigler@alaska.gov

Draft Permit Public Notice Period:

Public Notice Start Date: March 18, 2024

Public Notice Expiration Date: April 19, 2024, 12:00 pm (midnight) Alaska Daylight Time

Permit Number: AKG332000

Permit Name: Facilities Related to Oil and Gas Exploration, Production, and Development in the North Slope Borough

Proposed Permit Coverage:

The Permit proposes to reauthorize discharges related to oil and gas exploration, production, and development activities, located in the North Slope Borough (NSB) or coastal marine waters of the U.S. offshore of the NSB landward of the inner boundary baseline. Discharges may be to waters of the United States (18 AAC 83 – APDES Program) or discharges to waters of the state or land disposals (18 AAC 72 – Wastewater Disposal) in accordance with effluent limits, monitoring requirements, and other conditions set forth in the Permit and Fact Sheet. The following discharges or disposals are proposed to be authorized by the Permit:

• Discharge 002 – Graywater
• Discharge 003 – Gravel Pit Dewatering
• Discharge 004 – Excavation Dewatering
• Discharge 005 – Hydrostatic Testing
• Discharge 006 – Storm Water
• Discharge 007 – Mobile Spill Response
• Discharge 008 – Contained Water

The Permit proposes to authorize a 200-meter radius chronic mixing zone for fecal coliform bacteria, total residual chlorine, and residues from Graywater (Discharge 002) and a 500-foot standard mixing zone for turbidity from Gravel Pit Dewatering and Excavation Dewatering (Discharges 003 and 004). An authorization including a mixing zone and associated limitations may be issued for marine dredge settling basins may be issued pending a 30-day public notice under Discharge 008 – Contained Water.

Tentative Determination:

DEC has tentatively determined to reissue the wastewater discharge permit.

Public Comments:

Written comments or requests for a public hearing on the APDES draft permit must be submitted prior to the expiration of this public notice. Any person desiring to comment on the permit may submit comments electronically (preferred) at https://water.alaskadec.commentinput.com?id=pmDaU7fAs.

Alternatively, you may direct written comments and requests to the attention of the DEC contact/permit writer at the email address or postal address identified above.

All comments should include the name, address, and telephone number of the commenter and a concise statement of comment on the permit condition(s) and the relevant facts upon which the comment is based. Comments of either support or concern that are directed at specific, cited permit requirements are appreciated. Mailed comments and requests must be postmarked on or before the expiration date of the public notice.

DEC will consider all substantive comments when making the final decision. Those who provided timely comments during the public review will be notified of the final decision and be provided with a summary for the basis of the final decision.

DEADLINE FOR WRITTEN COMMENTS OR REQUEST FOR PUBLIC HEARING:

April 19, 2024 at 12:00 p.m. (midnight) Alaska Daylight Time

Administrative Record:

The APDES Draft Permit, Fact Sheet, permit application, and associated documents are available for public review at the DEC offices located in Anchorage, Fairbanks, Juneau, Wasilla, and Soldotna. Please contact the office of your choice to arrange for hard copies of the documents to be available for your review.

If you would like further information or to see any additional supporting technical documents, contact the permit writer at the address shown on page 1.

The permit documents can be accessed from the DEC Wastewater Discharge Authorization Program website at http://dec.alaska.gov/water/wastewater/

To receive email notifications about the APDES Program, including when permits are available to review, follow the link below to join the APDES email list.

http://list.state.ak.us/mailman/listinfo/DEC-APDES/

Disability Reasonable Accommodation Notice

The State of Alaska, DEC 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) 465-5871 or TDD Relay Service 1-800-770-8973/TTY or dial 711 prior to the expiration of this notice to ensure that any necessary accommodations can be provided.