Clean Water Act discharge permit · NPDES MNG585131
COMSTOCK WWTP, Comstock, MN: NPDES MNG585131 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
COMSTOCK WWTP, held by Comstock city of, holds NPDES permit MNG585131. EPA’s file records it issued January 1, 2020 and expiring November 30, 2023.
COMSTOCK WWTP, Comstock, Minnesota: Coverage under a general permit MNG585131, held by Comstock city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued January 1, 2020, term to November 30, 2023, by STA.
- Solids, total suspended: 5 limits, 11 violations of any kind, 8 effluent exceedances, latest June 30, 2020, largest 456% over the limit.
- pH: 3 limits, 8 violations of any kind, 5 effluent exceedances, latest May 31, 2025.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 5 violations of any kind, 2 effluent exceedances, latest June 30, 2020, largest 24% over the limit.
- Phosphorus, total [as P]: 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.
- Coliform, fecal MPN + membrane ftl 44.5 C: 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; 13 were issued before MNG585131.
Coverages issued nearest MNG585131
- January 1, 2020: FROST WWTP, Frost, MNG585120, held by Frost city of
- January 1, 2020: GHENT WWTP, Ghent, MNG585121, held by Ghent city of
- January 1, 2020: LOWRY WWTP, Lowry, MNG585123, held by Lowry city of
- January 1, 2020: MILROY WWTP, Milroy, MNG585124, held by Milroy city of
- January 1, 2020: SUNBURG WWTP, Sunburg, MNG585125, held by Sunburg city of
- January 1, 2020: GEORGETOWN WWTP, Georgetown, MNG585132, held by Georgetown city of
- January 1, 2020: TWIN VALLEY WWTP, Twin Valley, MNG585137, held by Twin Valley city of
- January 1, 2020: GRYGLA WWTP, Grygla, MNG585139, held by Grygla city of
- January 1, 2020: ARGYLE WWTP, Argyle, MNG585140, held by Argyle city of
- January 1, 2020: NEWFOLDEN WWTP, Newfolden, MNG585145, held by Newfolden city of
COMSTOCK WWTP among its neighbors
EPA’s permit file holds 2 discharge permits in the Lower Wolverton Creek subwatershed (HUC 090201040304), MNG585131 among them. Its county holds 25, 1 of them major permits; MNG585131 is a minor permit.
Other permits in the Lower Wolverton Creek subwatershed (HUC 090201040304)
- COMSTOCK, Comstock: MNG580131, minor permit, discharging to RED R VIA WOLVERTON CR VIA UNN CR, permit term to February 28, 2010
Identity
| Facility as filed | COMSTOCK WWTP |
|---|---|
| Permittee as filed | Comstock city of |
| NPDES ID | MNG585131 |
| 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 | Comstock, MN 56525 |
| Subwatershed | Lower Wolverton Creek (HUC 090201040304) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 7With a violation of any kind
- 3With 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 | 11 | 8 | June 30, 2020 | 456% over the limit |
| pH | 3 | 8 | 5 | May 31, 2025 | |
| BOD, carbonaceous [5 day, 20 C] | 5 | 5 | 2 | June 30, 2020 | 24% over the limit |
| Phosphorus, total [as P] | 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 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585131.
Inspections
EPA’s inspection file holds no inspection for NPDES MNG585131.
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 MNG585131.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.