Clean Water Act discharge permit · NPDES MNG490131
OMG MIDWEST INC DBA MINNESOTA PAVING AND MATERIALS, Mankato, MN: NPDES MNG490131 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
OMG MIDWEST INC DBA MINNESOTA PAVING AND MATERIALS, held by OMG Midwest, holds NPDES permit MNG490131. EPA’s file records it issued November 1, 2024 and expiring May 31, 2027. 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 | OMG MIDWEST INC DBA MINNESOTA PAVING AND MATERIALS |
|---|---|
| Permittee as filed | OMG Midwest |
| NPDES ID | MNG490131 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 1, 2024 |
| Expiration date | May 31, 2027 |
| Issuing agency | STA |
| Address | Mankato, MN 56001 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters Little Cottonwood River (HUC 070200070701) |
| SIC | 1442 – Construction Sand And Gravel |
| Other EPA IDs (FRS) | RCRA handler MND008817546 |
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
- 6Pollutants on file
- 6Under a numeric limit
- 5With a violation of any kind
- 2With 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 | 8 | 11 | 9 | March 31, 2026 | 87% over the limit |
| pH | 12 | 5 | 1 | December 31, 2022 | |
| Phosphorus, total [as P] | 6 | 3 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 6 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 12 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG490131.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MNG490131.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MNG490131 there.
Nearby on the register
- Discharge permits in Mankato
- Every permit record in Mankato, A to Z
- Discharge permits in Minnesota
- Every permit record in Minnesota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.