Clean Water Act discharge permit · NPDES MN0031917
RAHR MALTING CO, Shakopee, MN: NPDES MN0031917 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
RAHR MALTING CO, held by Rahr Malting Co., holds NPDES permit MN0031917. EPA’s file records it issued February 1, 2019 and expiring January 31, 2024. 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 | RAHR MALTING CO |
|---|---|
| Permittee as filed | Rahr Malting Co. |
| NPDES ID | MN0031917 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 1, 2019 |
| Expiration date | January 31, 2024 |
| Issuing agency | STA |
| Address | Shakopee, MN 55379 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Shakopee-Minnesota River (HUC 070200121102) |
| SIC | 2083 – Malt |
| Other EPA IDs (FRS) | RCRA handler MND006205918; ICIS-AIR source MN0000002713900003 |
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
- 13Pollutants on file
- 13Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Temperature, water deg. centigrade | 6 | 14 | 3 | June 30, 1995 | 160% over the limit |
| Phosphorus, total [as P] | 5 | 1 | 1 | July 31, 2020 | 10% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 1 | 1 | January 31, 2022 | 17% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 29 | 0 | ||
| pH | 4 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 12 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 1 | 0 | 0 | ||
| Solids, total dissolved | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 29, 2025 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| October 29, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| October 29, 2025 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| October 29, 2025 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| October 29, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| October 29, 2025 | 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.
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Nearby on the register
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- Discharge permits in Minnesota
- Every permit record in Minnesota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.