Clean Water Act discharge permit · NPDES CTP000822
MACDERMID INC, Waterbury, CT: NPDES CTP000822 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MACDERMID INC holds NPDES permit CTP000822. EPA’s file records it issued July 10, 2006 and expiring July 31, 2011. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MACDERMID INC |
|---|---|
| Permittee as filed | MACDERMID INC |
| NPDES ID | CTP000822 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 10, 2006 |
| Expiration date | July 31, 2011 |
| Issuing agency | CT DEP |
| Address | Waterbury, CT 06702 |
| Receiving water impaired | 303(D) Listed |
| SIC | 8731 – Commercial Physical Research |
| Other EPA IDs (FRS) | RCRA handler CTD981062854; ICIS-AIR source CT0000000900908590 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 19Pollutants on file
- 17Under a numeric limit
- 11With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 2 | 30 | 26 | March 31, 2026 | 85% over the limit |
| Nickel, total [as Ni] | 2 | 5 | 2 | March 31, 2019 | 73% over the limit |
| Flow rate | 1 | 2 | 1 | June 30, 2024 | 6% over the limit |
| Flow | 1 | 1 | 1 | June 30, 2024 | 6% over the limit |
| Solids, total suspended | 2 | 7 | 0 | ||
| Phosphorus, total [as P] | 0 | 5 | 0 | ||
| Carbon disulfide | 1 | 2 | 0 | ||
| pH, minimum | 0 | 2 | 0 | ||
| Chromium, total [as Cr] | 2 | 1 | 0 | ||
| Tin, total [as Sn] | 2 | 1 | 0 | ||
| Flow rate | 1 | 1 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Aluminum, total [as Al] | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 1 | 0 | 0 | ||
| Flow, maximum during 24 hr period | 1 | 0 | 0 | ||
| Organics, total toxic [TTO] | 1 | 0 | 0 |
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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 21, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| May 21, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 29, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 9, 2023 | Reporting Violations - Failure to Notify | 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
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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 CTP000822 there.
Nearby on the register
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- Every permit record in Waterbury, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.