Clean Water Act discharge permit · NPDES MNG585226
WOLF LAKE WWTP, Wolf Lake, MN: NPDES MNG585226 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WOLF LAKE WWTP, held by Wolf Lake city of, holds NPDES permit MNG585226. EPA’s file records it issued February 1, 2020 and expiring November 30, 2023.
WOLF LAKE WWTP, Wolf Lake, Minnesota: Coverage under a general permit MNG585226, held by Wolf Lake city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued February 1, 2020, term to November 30, 2023, by STA.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 27 violations of any kind, 2 effluent exceedances, latest May 31, 2021, largest 4% over the limit.
- pH: 3 limits, 14 violations of any kind, 1 effluent exceedance, latest June 30, 2023.
- Flow, in conduit or thru treatment plant: 9 limits, 36 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 5 limits, 25 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 19 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Precipitation, total defined period/in: 1 limit, 6 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 6 violations of any kind, 0 effluent exceedances.
- Sulfate, total [as SO4]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Coliform, fecal MPN + membrane ftl 44.5 C: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 88 were issued before MNG585226.
Coverages issued nearest MNG585226
- February 1, 2020: HEARTLAND HUTTERIAN BRETHREN WWTP, Lake Benton, MNG585195, held by Heartland Hutterian Brethren Inc
- February 1, 2020: RAYMOND WWTP, Raymond, MNG585197, held by Raymond city of
- February 1, 2020: PILLAGER WWTP, Pillager, MNG585209, held by Pillager city of
- February 1, 2020: RUSH CITY WWTP, Rush City, MNG585212, held by Rush City city of
- February 1, 2020: LAKE LILLIAN WWTP, Lake Lillian, MNG585225, held by Lake Lillian city of
- February 1, 2020: DUNDEE WWTP, Fulda, MNG585349, held by Dundee city of
- February 1, 2020: BIGFORK WWTP, Bigfork, MNG585363, held by Bigfork city of
- February 1, 2020: VIKING WWTP, Viking, MNG585370, held by Viking city of
- February 1, 2020: BUFFALO LAKE WWTP, Buffalo Lake, MNG585373, held by Buffalo Lake city of
- September 1, 2020: BLOMKEST SVEA SEWER BOARD WWTP, Blomkest, MNG585372, held by Blomkest/Svea Sewer Board
WOLF LAKE WWTP among its neighbors
EPA’s permit file holds 1 discharge permits in the Kettle River subwatershed (HUC 070101060301), MNG585226 among them. Its county holds 12, 1 of them major permits; MNG585226 is a minor permit.
Identity
| Facility as filed | WOLF LAKE WWTP |
|---|---|
| Permittee as filed | Wolf Lake city of |
| NPDES ID | MNG585226 |
| 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 | February 1, 2020 |
| Expiration date | November 30, 2023 |
| Issuing agency | STA |
| Address | Wolf Lake, MN 56593 |
| Subwatershed | Kettle River (HUC 070101060301) |
Effluent limits and exceedances
- 12Pollutants on file
- 11Under a numeric limit
- 12With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 5 | 27 | 2 | May 31, 2021 | 4% over the limit |
| pH | 3 | 14 | 1 | June 30, 2023 | |
| Flow, in conduit or thru treatment plant | 9 | 36 | 0 | ||
| Solids, total suspended | 5 | 25 | 0 | ||
| Phosphorus, total [as P] | 4 | 19 | 0 | ||
| Nitrogen, total [as N] | 2 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 6 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 6 | 0 | ||
| Precipitation, total defined period/in | 1 | 6 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 6 | 0 | ||
| Sulfate, total [as SO4] | 0 | 6 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 3 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585226.
Inspections
EPA’s inspection file holds no inspection for NPDES MNG585226.
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 MNG585226.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.