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North Dakota NPDES permit search

Status, expiry and violations for 199 municipal wastewater permits · issued by NDDEQ as NDPDES permits

In short

How do I look up an NPDES permit in North Dakota?

Search this page by permit number or plant name for a municipal plant’s permit status, expiry date and violations. For the official file, search CERIS-ND Open Records or NDDEQ’s public notices. EPA’s ECHO database shows the monitoring results and violations of every permit. The 197 industrial permits in North Dakota are listed in Klarifi with a free account.

Links to official sources checked September 2026.

Effective

198

Administratively continued

1

Expired

0

Plants with effluent violations, 3 years

51

Where to find official North Dakota NPDES records

North Dakota Department of Environmental Quality (NDDEQ) runs the NPDES program in North Dakota under authorization from EPA Region 8, as the North Dakota Pollutant Discharge Elimination System (NDPDES). It issues and enforces the permits and keeps the official file: applications, permits, fact sheets and monitoring reports. EPA issues the permits on tribal lands. NDDEQ website ↗

CERIS-ND Open Records ↗

permits · enforcement

Type the facility name, city or NDPDES permit number (for example ND0020109) in the search bar, or use Advanced Search with Permit Number or Permit Program. NDDEQ notes the records may not be complete.

permit documents

NDDEQ’s notices for all divisions; each NDPDES notice PDF holds the public notice, fact sheet and draft permit.

permits · DMRs · inspections · violations · enforcement

EPA’s Enforcement and Compliance History Online. Search water facilities by permit number, name or city; the Detailed Facility Report lists inspections, violations and enforcement actions, and Effluent Charts plot monitoring results against the permit limits.

Permit numbers
Individual permits are ND plus seven digits (ND0020109); general permits are written NDG32-0000, with coverages such as NDG320109, and industrial pretreatment permits start NDP.
Discharge monitoring reports
Through CERIS-ND, NDDEQ’s own reporting system.

Industrial and commercial NPDES permits in North Dakota

Most NPDES permits are not held by municipal plants. EPA’s permit database lists 197 individual permits in force for industrial and commercial facilities in North Dakota (manufacturers, food processors, mines, power plants, landfills), 32 of them major dischargers, plus 1,135 facilities covered by a general permit, mostly for stormwater. 26 of the individual permits recorded at least one effluent violation in the last three years.

FacilityPermitStatusExpiresEffluent violations

Unlock 197 industrial permits in North Dakota

Search every industrial and commercial discharger in North Dakota by name or permit number, with permit status, expiry and violation history. Free with a Klarifi account.

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Industrial and commercial NPDES permits in North Dakota: permits in force (effective or administratively continued) held by facilities EPA does not class as publicly owned treatment works or federal facilities. Source: EPA ICIS-NPDES via Klarifi, October 2026.

Violations at North Dakota wastewater plants

51 of the 199 municipal plants on this page recorded at least one effluent violation, a monitored value above a permit limit, in the last three years, and 137 had a violation of any kind, including late or missing monitoring reports. Each plant’s page shows its own count.

Permit renewals by year

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.

2027: 19 permits →2028: 8 permits →

2029: 161 permits

2030: 4 permits

2031: 6 permits

Largest permit holders in North Dakota

The 10 largest publicly owned wastewater treatment plants in North Dakota by permitted design flow, with NPDES permit number, status and expiry. Source: EPA ICIS-NPDES via Klarifi.
FacilityCityAvg flow (MGD)Design (MGD)NPDES permitStatusExpiresViolations (3y)
Grand Forks City OfGrand Forks12.2640.71ND0022888EffectiveDec 20287
Bismarck City Of (potw)Bismarck7.3410.68ND0023434EffectiveJun 20280
Casselton City OfCasselton2.858.6ND0020567EffectiveSep 202918
Wahpeton City OfWahpeton8.29—ND0020320EffectiveSep 20315
Finley City OfFinley—6.53NDG322004EffectiveSep 202911
Williston City OfWilliston2.866ND0022349EffectiveMar 20284
Devils Lake City OfDevils Lake3.85.5ND0020681EffectiveMar 202877
City Of Minot - Minot LandfillMinot5.03—ND0022896EffectiveMar 203020
West Fargo City OfWest Fargo5—ND0022616EffectiveSep 20294
Mandan Landfill / TsMandan1.69—ND0022861EffectiveSep 20310

North Dakota NPDES permits: questions

NPDES permit search in other states

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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 12, 2026.

Wastewater terms: NPDES permit · POTW · Significant industrial user · MGD · Equalization tank · Centrate · all terms

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