Clean Water Act discharge permit · NPDES MAG912071
OLIN CORPORATION, Wilmington, MA: NPDES MAG912071 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 23Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
OLIN CORPORATION, held by Brian Guichard, holds NPDES permit MAG912071. EPA’s file records it issued August 2, 2022 and expiring August 1, 2027. 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 OLIN CORPORATION: its NPDES ID, its permit type and status, its dates, its address in Wilmington, Massachusetts, and 23 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAG912071.
Identity
| Facility as filed | OLIN CORPORATION |
|---|---|
| Permittee as filed | Brian Guichard |
| NPDES ID | MAG912071 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 2, 2022 |
| Expiration date | August 1, 2027 |
| Issuing agency | EPA Region 1 |
| Address | Wilmington, MA 01887 |
| Other EPA IDs (FRS) | RCRA handler MAD001403104 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 23Pollutants on file
- 23Under 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 |
|---|---|---|---|---|---|
| Sulfate [as S] | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Phenols | 2 | 0 | 0 | ||
| Turbidity | 1 | 0 | 0 | ||
| Solids, total suspended | 1 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Cyanide, total [as CN] | 1 | 0 | 0 | ||
| Chloride, total recoverable | 1 | 0 | 0 | ||
| Arsenic, total recoverable | 1 | 0 | 0 | ||
| Iron, total recoverable | 1 | 0 | 0 | ||
| Lead, total recoverable | 1 | 0 | 0 | ||
| Copper, total recoverable | 1 | 0 | 0 | ||
| N-Nitrosodiphenylamine | 1 | 0 | 0 | ||
| N-Nitrosodimethylamine [NDMA] | 1 | 0 | 0 | ||
| 1,2-Dichlorobenzene | 1 | 0 | 0 | ||
| 1,4-Dichlorobenzene | 1 | 0 | 0 | ||
| Phenol | 1 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 1 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 0 | 0 | ||
| Hydrocarbons, total petroleum | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MAG912071.
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 MAG912071.
Inspections
EPA’s inspection file holds no inspection for NPDES MAG912071.
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
EPA’s informal enforcement file holds no action for NPDES MAG912071.
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, MAG912071.
Start the watch
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- 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 MAG912071 there.
Nearby on the register
- Discharge permits in Wilmington
- Every permit record in Wilmington, A to Z
- Discharge permits in Massachusetts
- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.