Clean Water Act discharge permit · NPDES MN0020036
BENSON WWTP, Benson, MN: NPDES MN0020036 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
BENSON WWTP, held by BENSON, holds NPDES permit MN0020036, which discharges to Chippewa R. EPA’s file records it issued April 6, 2009 and expiring March 31, 2014. 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 | BENSON WWTP |
|---|---|
| Permittee as filed | BENSON |
| NPDES ID | MN0020036 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 6, 2009 |
| Expiration date | March 31, 2014 |
| Address | Benson, MN 56215 |
| Receiving water | CHIPPEWA R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Benson-Chippewa River (HUC 070200050706) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 0Under 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 | 0 | 23 | 14 | October 31, 1995 | 273% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 20 | 14 | July 31, 1997 | 161% over the limit |
| Chlorine, total residual | 0 | 42 | 2 | April 30, 1996 | 500% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 0 | 3 | 2 | July 31, 1995 | 63% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 60 | 0 | ||
| pH | 0 | 5 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 3 | 0 | ||
| 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 MN0020036.
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 MN0020036 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.