How many wastewater permits expire in North Dakota in 2028?

9 NPDES permits held by publicly owned wastewater treatment plants in North Dakota expire in 2028, covering a combined average flow of 26 MGD. The busiest month is Mar 2028 with 3 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 North Dakota in 2028?

Grand Forks City Of in Grand Forks, treating about 12.26 MGD under permit ND0022888, expiring Dec 2028.

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.

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North Dakota wastewater permits expiring in 2028

Name: North Dakota NPDES permits expiring in 2028
Creator: Klarifi
License: https://klarifi.io/terms-of-service

9 NPDES permits · 26 MGD combined average flow

9 publicly owned wastewater treatment plants in North Dakota hold NPDES permits that expire during 2028, issued by North Dakota Department of Environmental Quality. 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:

2027 (19)All North Dakota NPDES permits →

Publicly owned wastewater treatment plants in North Dakota with NPDES permits expiring in 2028, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Violations (3y)
Devils Lake City Of	Devils Lake	3.8	ND0020681	Mar 2028	77
Williston City Of	Williston	2.86	ND0022349	Mar 2028	4
Hillsboro WTP	Hillsboro	—	ND0026115	Mar 2028	27
Bismarck City Of (potw)	Bismarck	7.34	ND0023434	Jun 2028	0
Beulah City Of	Beulah	—	ND0021211	Jun 2028	11
City Of Sibley	Sibley	—	NDG123761	Sep 2028	17
Fairview Mt City Of	Fairview	—	NDG125356	Sep 2028	4
Grand Forks City Of	Grand Forks	12.26	ND0022888	Dec 2028	7
Fargo City Of	Fargo	—	ND0022870	Dec 2028	3

North Dakota permit renewals in 2028: 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 · FOG · Equalization tank · 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 2028: North Dakota plants.” Updated October 26, 2026. https://klarifi.io/facilities/north-dakota/permits-expiring/2028

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