Clean Water Act discharge permit · NPDES MN0021687
COMFREY WWTP, Comfrey, MN: NPDES MN0021687 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
COMFREY WWTP, held by COMFREY, holds NPDES permit MN0021687, which discharges to Altermatts Cr. EPA’s file records it issued February 13, 2015 and expiring January 31, 2020. 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 | COMFREY WWTP |
|---|---|
| Permittee as filed | COMFREY |
| NPDES ID | MN0021687 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 13, 2015 |
| Expiration date | January 31, 2020 |
| Address | Comfrey, MN 56019 |
| Receiving water | ALTERMATTS CR |
| Subwatershed | County Ditch No 28-1 (HUC 070200070702) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 0Under a numeric limit
- 4With 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 |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 0 | 42 | 32 | March 31, 1991 | 486% over the limit |
| Solids, total suspended | 0 | 40 | 28 | March 31, 1990 | 188% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 0 | 3 | 3 | August 31, 1989 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 0 | 1 | 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 MN0021687.
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 MN0021687 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.