Clean Water Act discharge permit · NPDES MIS110420
AJAX MATERIALS-PLT 2, Auburn Hills, MI: NPDES MIS110420 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
AJAX MATERIALS-PLT 2, held by Ajax Materials Corporation-Plant 2, holds NPDES permit MIS110420, which discharges to Galloway Ditch. 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-PLT 2: its NPDES ID, its permit type and status, its dates, its address in Auburn Hills, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS110420.
Identity
| Facility as filed | AJAX MATERIALS-PLT 2 |
|---|---|
| Permittee as filed | Ajax Materials Corporation-Plant 2 |
| NPDES ID | MIS110420 |
| 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 | Auburn Hills, MI 48326 |
| Receiving water | Galloway Ditch |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Galloway Creek-Clinton River (HUC 040900030111) |
| Other EPA IDs (FRS) | RCRA handler MID980272330; ICIS-AIR source MI00000000000B1956 |
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 MIS110420.
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 MIS110420.
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, MIS110420.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 MIS110420 there.
Nearby on the register
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- Every permit record in Michigan, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.