Clean Water Act discharge permit · NPDES MN0055832
HUTCHINSON WWTP, Hutchinson, MN: NPDES MN0055832 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 29Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
HUTCHINSON WWTP, held by Hutchinson WWTP, holds NPDES permit MN0055832, which discharges to Crow R S Fk. EPA’s file records it issued April 30, 2012 and expiring March 31, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HUTCHINSON WWTP |
|---|---|
| Permittee as filed | Hutchinson WWTP |
| NPDES ID | MN0055832 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 30, 2012 |
| Expiration date | March 31, 2017 |
| Address | Hutchinson, MN 55350 |
| Receiving water | CROW R S FK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Biscay-South Fork Crow River (HUC 070102050302) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler MNR000042440; ICIS-AIR source MN0000002708500052 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 29Pollutants on file
- 29Under 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 |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 3 | 4 | 3 | February 28, 2026 | 93% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 10 | 3 | 3 | February 28, 2021 | 50% over the limit |
| Phosphorus, total [as P] | 4 | 3 | 3 | April 30, 2017 | 15% over the limit |
| Nitrogen, ammonia total [as N] | 10 | 6 | 1 | August 31, 2025 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 2 | 0 | ||
| pH | 6 | 1 | 0 | ||
| Temperature, water deg. centigrade | 2 | 1 | 0 | ||
| Nitrogen, ammonia, tot unionized [as N] | 2 | 1 | 0 | ||
| Solids, total suspended | 6 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Stream flow, instantaneous | 1 | 0 | 0 | ||
| Specific conductance | 1 | 0 | 0 | ||
| Precipitation, total defined period/in | 1 | 0 | 0 | ||
| Bicarbonate ion- [as HCO3] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Calcium, total [as Ca] | 1 | 0 | 0 | ||
| Magnesium, total [as Mg] | 1 | 0 | 0 | ||
| Sodium, total [as Na] | 1 | 0 | 0 | ||
| Potassium, total [as K] | 1 | 0 | 0 | ||
| Chloride [as Cl] | 1 | 0 | 0 | ||
| Sulfate, total [as SO4] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | 1 | 0 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 0 | 0 | ||
| Solids, total dissolved | 1 | 0 | 0 | ||
| Effluent dilution ratio | 1 | 0 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 25, 2023 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| January 25, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
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 MN0055832 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.