Clean Water Act discharge permit · NPDES NDG126441
NPS - NU HEADQUARTERS LAGOONS, Medora, ND: NPDES NDG126441 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
NPS - NU HEADQUARTERS LAGOONS, held by Theodore Roosevelt National Park, holds NPDES permit NDG126441, which discharges to Lower Little Missouri. EPA’s file records it issued March 17, 2014 and expiring September 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NPS - NU HEADQUARTERS LAGOONS |
|---|---|
| Permittee as filed | Theodore Roosevelt National Park |
| NPDES ID | NDG126441 |
| 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 | Federal facility |
| Program | Publicly owned treatment works |
| Issued | March 17, 2014 |
| Expiration date | September 30, 2023 |
| Issuing agency | North Dakota Department of Environmental Quality |
| Address | Medora, ND 58645 |
| Receiving water | Lower Little Missouri |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Appel Creek (HUC 101102050210) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 11Pollutants on file
- 9Under 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 5 | 25 | 0 | ||
| pH | 4 | 20 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 15 | 0 | ||
| Solids, total suspended | 3 | 15 | 0 | ||
| Stream flow, instantaneous | 3 | 13 | 0 | ||
| E. coli | 3 | 12 | 0 | ||
| Temperature, water deg. centigrade | 2 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Oil & Grease | 0 | 6 | 0 | ||
| Flow, total | 1 | 5 | 0 | ||
| Oil and grease visual | 0 | 2 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDG126441.
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 NDG126441.
Velarion’s copy of EPA’s ICIS-NPDES files does not 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, NDG126441.
Start the watch
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- 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 NDG126441 there.
Nearby on the register
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- Every permit record in Medora, A to Z
- Discharge permits in North Dakota
- Every permit record in North Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.