Who issues NPDES permits in Alaska?

Alaska Department of Environmental Conservation issues and enforces NPDES permits for wastewater discharges in Alaska. Klarifi tracks 38 permits held by publicly owned treatment plants in the state.

How many NPDES permits in Alaska are expired or administratively continued?

6 permits are administratively continued (the plant applied for renewal and the old permit stays in force) and 0 are recorded as expired, out of 38 permits tracked. 32 are effective.

How many Alaska wastewater permits come up for renewal soon?

2 in 2026, 12 in 2027 and 10 in 2028. Each year has its own renewal calendar with the plants listed.

How do I look up an NPDES permit number?

Enter the permit number (two letters and seven characters, for example TX0021873) or the plant name in the lookup on the NPDES page; each result opens the plant profile with status, expiry, design flow and the three-year violation count.

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NPDES permits in Alaska

Name: NPDES permits held by wastewater treatment plants in Alaska
Creator: Klarifi
License: https://klarifi.io/terms-of-service

38 permits held by publicly owned wastewater treatment plants · issued by ADEC

Effective

Administratively continued

Expired

Total tracked

Alaska Department of Environmental Conservation (ADEC) runs the NPDES program in Alaska under delegation from EPA Region 10, issuing and enforcing the discharge permits listed here. Klarifi tracks 38 permits held by publicly owned treatment plants in the state, with status, expiry, design flow and three-year compliance for each. Agency website →

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.

Permit renewals by year

2026: 2 permits

2027: 12 permits →2028: 10 permits →

2029: 2 permits

2030: 5 permits

2031: 1 permits

Largest permit holders in Alaska

The 25 largest publicly owned wastewater treatment plants in Alaska by permitted design flow, with NPDES permit number, status and expiry. Source: EPA ICIS-NPDES via Klarifi.
Facility	City	Avg flow (MGD)	Design (MGD)	NPDES permit	Status	Expires	Violations (3y)
Sitka Wastewater Facility	Sitka	1.1	5.3	AK0021474	Effective	Oct 2030	4
Golden Heart Utilities WWTP	Fairbanks	4.9	—	AK0023451	Effective	Dec 2026	1
Charcoal Point WWTP	Ketchikan	5.09	4	AK0021440	Effective	Oct 2030	10
Mendenhall Valley WWTP	Juneau	2.44	—	AK0022951	Effective	May 2025	59
Kodiak Wastewater Treatment Facility	Kodiak	1.5	—	AK0021555	Effective	May 2029	2
Eagle River WWTP	Eagle River	1.38	—	AK0022543	Effective	Jan 2031	0
Petersburg WWTP	Petersburg	0.56	1.2	AK0021458	Effective	Oct 2030	3
Metlakatla Sewer Treatment Plant	Metlakatla	0.23	0.69	AK0053813	Administratively continued	Sep 2025	105
Palmer WWTP	Palmer	0.63	—	AK0022497	Effective	Feb 2030	14
Skagway WWTP	Skagway	0.25	0.63	AK0020010	Effective	Oct 2030	116
Lowell Point WWTP	Seward	0.58	—	AK0021890	Effective	Sep 2027	17
Mountain Point Wastewater Treatment Plant	Ketchikan	0.55	—	AKG572028	Effective	Dec 2027	21
Kenai STP	Kenai	0.43	—	AK0021377	Administratively continued	May 2026	1
Girdwood WWTP	Girdwood	0.39	—	AK0047856	Administratively continued	Oct 2005	6
Homer Public Works Department And WWTP	Homer	0.38	—	AK0021245	Effective	Jan 2027	8
Cordova Wastewater Treatment Plant	Cordova	0.29	—	AK0021547	Effective	Feb 2028	2
Thorne Bay WWTF	Thorne Bay	0.27	—	AKG572045	Effective	Dec 2027	246
North Pole WWTP	North Pole	0.16	—	AK0021393	Administratively continued	May 2013	4
Spring Creek Correctional Center	Seward	0.09	—	AK0053724	Effective	Apr 2027	67
Auke Bay Wastewater Treatment Facility	Juneau	0.08	—	AKG572004	Effective	Dec 2027	12
Nenana WWTF	Nenana	0.06	—	AKG572031	Effective	Dec 2027	91
Talkeetna Sewage Treatment Lagoons	Talkeetna	0.06	—	AKG573033	Effective	Aug 2028	0
King Salmon WWTF	King Salmon	0.04	—	AKG573029	Effective	Aug 2028	53
Seldovia Water System	Seldovia	0.03	—	AKG380006	Effective	Sep 2029	91
Point Hope WWTF	Point Hope	0.03	—	AKG571056	Administratively continued	Jul 2009	211

All 38 plants in Alaska →

NPDES permits in Alaska: 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 September 11, 2026.

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