Clean Water Act discharge permit · NPDES MNG585122
HANLEY FALLS WWTP, Hanley Falls, MN: NPDES MNG585122 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
HANLEY FALLS WWTP, held by Hanley Falls city of, holds NPDES permit MNG585122. EPA’s file records it issued June 1, 2022 and expiring November 30, 2023.
HANLEY FALLS WWTP, Hanley Falls, Minnesota: Coverage under a general permit MNG585122, held by Hanley Falls city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued June 1, 2022, term to November 30, 2023, by STA.
- Solids, total suspended: 5 limits, 8 violations of any kind, 7 effluent exceedances, latest November 30, 2025, largest 69% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 5 violations of any kind, 4 effluent exceedances, latest April 30, 2023, largest 223% over the limit.
- Phosphorus, total [as P]: 4 limits, 2 violations of any kind, 1 effluent exceedance, latest June 30, 2023, largest 72% over the limit.
- Coliform, fecal MPN + membrane ftl 44.5 C: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2023, largest 1,110% over the limit.
- pH: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 9 limits, 0 violations of any kind, 0 effluent exceedances.
- Precipitation, total defined period/in: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 207 were issued before MNG585122.
Coverages issued nearest MNG585122
- January 1, 2022: ALTONA HUTTERIAN BRETHREN WWTP, Henderson, MNG585385, held by Altona Hutterite Brethren
- January 1, 2022: HAMBURG WWTP, Hamburg, MNG585386, held by Hamburg city of
- January 1, 2022: WILLIAMS WWTP, Williams, MNG585388, held by Williams city of
- June 1, 2022: FREEPORT WWTP, Freeport, MNG585019, held by Freeport city of
- June 1, 2022: ELMORE WWTP, Elmore, MNG585110, held by Elmore city of
- June 1, 2022: CLINTON WWTP, Clinton, MNG585193, held by Clinton city of
- June 1, 2022: FINLAYSON WWTP, Finlayson, MNG585203, held by Finlayson city of
- June 1, 2022: GEM SANITARY DISTRICT, Greenwald, MNG585205, held by GEM Sanitary District
- June 1, 2022: GOOD THUNDER WWTP, Good Thunder, MNG585206, held by Good Thunder city of
- June 1, 2022: BIRD ISLAND WWTP, Bird Island, MNG585390, held by Bird Island city of
HANLEY FALLS WWTP among its neighbors
EPA’s permit file holds 1 discharge permits in the Yellow Medicine River subwatershed (HUC 070200040605), MNG585122 among them. Its county holds 25, 0 of them major permits; MNG585122 is a minor permit.
Identity
| Facility as filed | HANLEY FALLS WWTP |
|---|---|
| Permittee as filed | Hanley Falls city of |
| NPDES ID | MNG585122 |
| 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 | June 1, 2022 |
| Expiration date | November 30, 2023 |
| Issuing agency | STA |
| Address | Hanley Falls, MN 56245 |
| Subwatershed | Yellow Medicine River (HUC 070200040605) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 8With 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 | 8 | 7 | November 30, 2025 | 69% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 5 | 4 | April 30, 2023 | 223% over the limit |
| Phosphorus, total [as P] | 4 | 2 | 1 | June 30, 2023 | 72% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 1 | 1 | April 30, 2023 | 1,110% over the limit |
| pH | 3 | 2 | 0 | ||
| Nitrogen, total [as N] | 2 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 1 | 0 | ||
| Flow, in conduit or thru treatment plant | 9 | 0 | 0 | ||
| Precipitation, total defined period/in | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585122.
Inspections
EPA’s inspection file holds no inspection for NPDES MNG585122.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MNG585122.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.