Clean Water Act discharge permit · NPDES ND0031160
MHA INTERPRETIVE CENTER WWTF, New Town, ND: NPDES ND0031160 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MHA INTERPRETIVE CENTER WWTF, held by Three Affiliated Tribes Utilities - MHA Interpretive Center, holds NPDES permit ND0031160, which discharges to Missouri River. EPA’s file records it issued August 8, 2018 and expiring August 31, 2023. 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 | MHA INTERPRETIVE CENTER WWTF |
|---|---|
| Permittee as filed | Three Affiliated Tribes Utilities - MHA Interpretive Center |
| NPDES ID | ND0031160 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 8, 2018 |
| Expiration date | August 31, 2023 |
| Address | New Town, ND 58763 |
| Receiving water | MISSOURI RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Four Bears Bay (HUC 101101011901) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 14Under a numeric limit
- 14With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| E. coli | 2 | 47 | 23 | December 31, 2025 | 99,999% over the limit |
| Solids, suspended percent removal | 1 | 28 | 13 | December 31, 2025 | 99,999% over the limit |
| BOD, 5-day, percent removal | 1 | 25 | 10 | March 31, 2025 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 63 | 9 | June 30, 2024 | 756% over the limit |
| Solids, total suspended | 4 | 63 | 9 | March 31, 2024 | 1,025% over the limit |
| pH | 2 | 25 | 1 | June 30, 2024 | |
| Flow rate | 2 | 24 | 0 | ||
| Nitrogen, total [as N] | 2 | 24 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 24 | 0 | ||
| Phosphorus, total [as P] | 2 | 24 | 0 | ||
| Temperature, water deg. centigrade | 1 | 12 | 0 | ||
| Oil & Grease | 1 | 12 | 0 | ||
| Floating solids, waste or visible foam-visual | 1 | 12 | 0 | ||
| Oil and grease visual | 1 | 12 | 0 |
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 ND0031160.
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, ND0031160.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
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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 ND0031160 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.