Clean Water Act discharge permit · NPDES MIS410872
W.R. GRACE & CO-SOUTH HAVEN, South Haven, MI: NPDES MIS410872 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
W.R. GRACE & CO-SOUTH HAVEN, held by W. R. Grace & Co.-Conn, holds NPDES permit MIS410872, which discharges to Lake Michigan. EPA’s file records it issued October 31, 2024 and expiring April 1, 2029. 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.
Identity
| Facility as filed | W.R. GRACE & CO-SOUTH HAVEN |
|---|---|
| Permittee as filed | W. R. Grace & Co.-Conn |
| NPDES ID | MIS410872 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 31, 2024 |
| Expiration date | April 1, 2029 |
| Issuing agency | State |
| Address | South Haven, MI 49090 |
| Receiving water | Lake Michigan |
| Subwatershed | Deerlick Creek-Frontal Lake Michigan (HUC 040500020102) |
| Other EPA IDs (FRS) | RCRA handler MID080361454; ICIS-AIR source MI00000000000B6519 |
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 MIS410872.
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 16, 2025 | Discharge from an industrial stormwater outfall to waters of the U.S. without NPDES permit coverage | 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.
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, MIS410872.
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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 MIS410872 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.