Clean Water Act discharge permit · NPDES MNG585176
HENDRUM WWTP, Hendrum, MN: NPDES MNG585176 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
HENDRUM WWTP, held by Hendrum city of, holds NPDES permit MNG585176. EPA’s file records it issued January 1, 2020 and expiring November 30, 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 | HENDRUM WWTP |
|---|---|
| Permittee as filed | Hendrum city of |
| NPDES ID | MNG585176 |
| 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 | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 1, 2020 |
| Expiration date | November 30, 2023 |
| Issuing agency | STA |
| Address | Hendrum, MN 56550 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Hendrum-Wild Rice River (HUC 090201081206) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 11With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 5 | 76 | 10 | June 30, 2026 | 100% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 66 | 1 | May 31, 2022 | 5% over the limit |
| pH | 3 | 38 | 1 | May 31, 2019 | |
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 8 | 1 | May 31, 2022 | 1,110% over the limit |
| Flow, in conduit or thru treatment plant | 9 | 84 | 0 | ||
| Phosphorus, total [as P] | 3 | 37 | 0 | ||
| Nitrogen, total [as N] | 2 | 21 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 21 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 21 | 0 | ||
| Precipitation, total defined period/in | 1 | 18 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 14 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 4, 2024 | Effluent Violations - Unauthorized Discharge | ST6 |
| January 4, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
| January 4, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
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
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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 MNG585176 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.