Clean Water Act discharge permit · NPDES NDR050337
BISMARCK MUNICIPAL AIRPORT, Bismarck, ND: NPDES NDR050337 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BISMARCK MUNICIPAL AIRPORT, held by Bismarck Municipal Airport, holds NPDES permit NDR050337, which discharges to Upper Lake Oahe. EPA’s file records it issued March 30, 2020 and expiring March 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BISMARCK MUNICIPAL AIRPORT |
|---|---|
| Permittee as filed | Bismarck Municipal Airport |
| NPDES ID | NDR050337 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | March 30, 2020 |
| Expiration date | March 31, 2025 |
| Issuing agency | North Dakota Department of Environmental Quality |
| Address | Bismarck, ND 58501 |
| Receiving water | Upper Lake Oahe |
| Subwatershed | Cottonwood Lake (HUC 101301020201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 6Under a numeric limit
- 11With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 8 | 53 | 0 | ||
| Oil & Grease | 4 | 29 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 26 | 0 | ||
| Oil and grease visual | 4 | 26 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 25 | 0 | ||
| Chemical Oxygen Demand [COD] | 4 | 25 | 0 | ||
| Dry days preceding precipitation event | 0 | 14 | 0 | ||
| Rainfall duration | 0 | 14 | 0 | ||
| Rainfall | 0 | 14 | 0 | ||
| Date of Storm Event | 0 | 14 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 3 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDR050337.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NDR050337.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NDR050337.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NDR050337 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.