How many wastewater permits expire in Alaska in 2027?

11 NPDES permits held by publicly owned wastewater treatment plants in Alaska expire in 2027, covering a combined average flow of 2 MGD. The busiest month is Dec 2027 with 9 expiries.

What happens when an NPDES permit expires?

The plant must have applied for renewal at least 180 days before the expiry date. If the agency has not reissued the permit by then, the old permit is administratively continued and stays enforceable. The reissued permit typically carries updated effluent limits based on the latest water-quality standards, which is what drives upgrade projects.

Which is the largest plant with a permit expiring in Alaska in 2027?

Mountain Point Wastewater Treatment Plant in Ketchikan, treating about 0.48 MGD under permit AKG572028, expiring Dec 2027.

How do I get contacts for the plants on this list?

Every plant links to its profile with flow, permit and compliance data. Treatment technology and verified decision-maker contacts for each plant, and the same list for every state and year, are available in Klarifi with a free account.

Try for free Log in

Alaska wastewater permits expiring in 2027

Name: Alaska NPDES permits expiring in 2027
Creator: Klarifi
License: https://klarifi.io/terms-of-service

11 NPDES permits · 2 MGD combined average flow

11 publicly owned wastewater treatment plants in Alaska hold NPDES permits that expire during 2027, issued by Alaska Department of Environmental Conservation. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.

An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.

Other years:

2028 (9)All Alaska NPDES permits →

Publicly owned wastewater treatment plants in Alaska with NPDES permits expiring in 2027, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Violations (3y)
Homer Public Works Department And WWTP	Homer	0.44	AK0021245	Jan 2027	8
Lowell Point WWTP	Seward	0.45	AK0021890	Sep 2027	19
Mountain Point Wastewater Treatment Plant	Ketchikan	0.48	AKG572028	Dec 2027	21
Thorne Bay WWTF	Thorne Bay	0.22	AKG572045	Dec 2027	246
Auke Bay Wastewater Treatment Facility	Juneau	0.05	AKG572004	Dec 2027	12
Nenana WWTF	Nenana	0.04	AKG572031	Dec 2027	90
Nuiqsut WWTF	Nuiqsut	0.02	AKG572033	Dec 2027	44
Atqasuk WWTF	Atqasuk	0.01	AKG572001	Dec 2027	86
Point Lay WWTF	Point Lay	0.0076	AKG572036	Dec 2027	134
Kisimgiugtuq School Wastewater Treatment Facility	Kivalina	0.0052	AKG572130	Dec 2027	354
Mcneil Canyon Elementary School	Homer	0.00035	AKG572027	Dec 2027	6

Alaska permit renewals in 2027: questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026.

Wastewater terms: NPDES permit · POTW · Biological nutrient removal · Tertiary treatment · Activated sludge · Oxidation ditch · all terms

Cite this page

Journalists, researchers and educators are welcome to quote these figures. Please credit Klarifi as the source and link to this page.

Klarifi. “NPDES permits expiring in 2027: Alaska wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/alaska/permits-expiring/2027

Need a custom cut of the data for a state, a county or a list of plants? Email info@klarifi.io.

Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free