Clean Water Act discharge permit · NPDES MIS111330
AJAX MATERIALS CORP-PLANT 3, Rochester Hills, MI: NPDES MIS111330 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
AJAX MATERIALS CORP-PLANT 3, held by Ajax Materials Corporation, holds NPDES permit MIS111330, which discharges to Clinton River. EPA’s file records it issued October 8, 2021 and expiring April 1, 2026. 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.
What the register holds for AJAX MATERIALS CORP-PLANT 3: its NPDES ID, its permit type and status, its dates, its address in Rochester Hills, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS111330.
Identity
| Facility as filed | AJAX MATERIALS CORP-PLANT 3 |
|---|---|
| Permittee as filed | Ajax Materials Corporation |
| NPDES ID | MIS111330 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 8, 2021 |
| Expiration date | April 1, 2026 |
| Issuing agency | State |
| Address | Rochester Hills, MI 48309 |
| Receiving water | Clinton River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Galloway Creek-Clinton River (HUC 040900030111) |
| Other EPA IDs (FRS) | RCRA handler MIK253242796; ICIS-AIR source MI00000000000N1333 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS111330.
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 MIS111330.
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, MIS111330.
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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 MIS111330 there.
Nearby on the register
- Discharge permits in Rochester Hills
- Every permit record in Rochester Hills, A to Z
- Discharge permits in Michigan
- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.