Clean Water Act discharge permit · NPDES MNG250110
CENTRAL BOILER INC - GREENBUSH, Greenbush, MN: NPDES MNG250110 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
CENTRAL BOILER INC - GREENBUSH, held by Central Boiler Inc, holds NPDES permit MNG250110. EPA’s file records it issued May 1, 2020 and expiring January 31, 2025.
CENTRAL BOILER INC - GREENBUSH, Greenbush, Minnesota: Coverage under a general permit MNG250110, held by Central Boiler Inc; Administratively continued (past its expiration date and still in force until reissued); issued May 1, 2020, term to January 31, 2025, by STA.
- pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- January 20, 2026: Letter of Violation/ Warning Letter (State).
- January 6, 2026: Evaluation (S).
CENTRAL BOILER INC - GREENBUSH among its neighbors
EPA’s permit file holds 1 discharge permits in the Town of Strathcona subwatershed (HUC 090203120105), MNG250110 among them. Its county holds 13, 0 of them major permits; MNG250110 is a minor permit.
Identity
| Facility as filed | CENTRAL BOILER INC - GREENBUSH |
|---|---|
| Permittee as filed | Central Boiler Inc |
| NPDES ID | MNG250110 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 1, 2020 |
| Expiration date | January 31, 2025 |
| Issuing agency | STA |
| Address | Greenbush, MN 56726 |
| Subwatershed | Town of Strathcona (HUC 090203120105) |
| Other EPA IDs (FRS) | RCRA handler MNR000110338; ICIS-AIR source MN0000002713500023 |
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 0With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MNG250110.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG250110.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| January 6, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| January 20, 2026 | Letter of Violation/ Warning Letter | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.