Clean Water Act discharge permit · NPDES CTP001473
RSA CORPORATION, Danbury, CT: NPDES CTP001473 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 55Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
RSA CORPORATION, held by RSA CORPORATION, holds NPDES permit CTP001473. EPA’s file records it issued January 18, 2013 and expiring January 31, 2018. 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 | RSA CORPORATION |
|---|---|
| Permittee as filed | RSA CORPORATION |
| NPDES ID | CTP001473 |
| 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 | January 18, 2013 |
| Expiration date | January 31, 2018 |
| Issuing agency | CT DEP |
| Address | Danbury, CT 06810 |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler CTD983875550; ICIS-AIR source CT0000000900109061 |
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
- 55Pollutants on file
- 55Under a numeric limit
- 14With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 46 | 44 | April 30, 2022 | 155% over the limit |
| Zinc, total [as Zn] | 4 | 32 | 25 | December 31, 2024 | 503% over the limit |
| Methylene chloride | 4 | 14 | 14 | November 30, 2009 | 953% over the limit |
| Methyl chloride [Chloromethane] | 4 | 9 | 9 | December 31, 2007 | 1,188% over the limit |
| Chloroform | 4 | 7 | 7 | December 31, 2002 | 4,005% over the limit |
| Flow, maximum during 24 hr period | 1 | 1 | 1 | July 31, 2004 | 14% over the limit |
| Flow | 1 | 1 | 1 | July 31, 2004 | 14% over the limit |
| Solids, total suspended | 1 | 3 | 0 | ||
| Lead, total [as Pb] | 4 | 2 | 0 | ||
| Chemical Oxygen Demand [COD] | 1 | 2 | 0 | ||
| pH | 2 | 1 | 0 | ||
| Flow rate | 1 | 1 | 0 | ||
| Oil petroleum, total recoverable | 1 | 1 | 0 | ||
| pH, maximum | 1 | 1 | 0 | ||
| Cyanide, total [as CN] | 4 | 0 | 0 | ||
| Carbon tetrachloride | 4 | 0 | 0 | ||
| Toluene | 4 | 0 | 0 | ||
| Benzene | 4 | 0 | 0 | ||
| Acenaphthene | 4 | 0 | 0 | ||
| Anthracene | 4 | 0 | 0 | ||
| Chlorobenzene | 4 | 0 | 0 | ||
| Chloroethane, total weight | 4 | 0 | 0 | ||
| Diethyl phthalate | 4 | 0 | 0 | ||
| Dimethyl phthalate | 4 | 0 | 0 | ||
| Ethylbenzene | 4 | 0 | 0 | ||
| Fluoranthene | 4 | 0 | 0 | ||
| Fluorene | 4 | 0 | 0 | ||
| Hexachloroethane | 4 | 0 | 0 | ||
| Nitrobenzene | 4 | 0 | 0 | ||
| Phenanthrene | 4 | 0 | 0 | ||
| Pyrene | 4 | 0 | 0 | ||
| Tetrachloroethylene | 4 | 0 | 0 | ||
| 1,1-Dichloroethane | 4 | 0 | 0 | ||
| 1,1-Dichloroethylene | 4 | 0 | 0 | ||
| 1,1,1-Trichloroethane | 4 | 0 | 0 | ||
| 1,1,2-Trichloroethane | 4 | 0 | 0 | ||
| 1,2-Dichloroethane, total weight | 4 | 0 | 0 | ||
| 1,2-Dichlorobenzene | 4 | 0 | 0 | ||
| 1,2-Dichloropropane | 4 | 0 | 0 | ||
| trans-1,2-Dichloroethylene | 4 | 0 | 0 | ||
| 1,2,4-Trichlorobenzene | 4 | 0 | 0 | ||
| 1,3-Dichlorobenzene | 4 | 0 | 0 | ||
| 1,4-Dichlorobenzene | 4 | 0 | 0 | ||
| 2-Nitrophenol | 4 | 0 | 0 | ||
| 4-Nitrophenol | 4 | 0 | 0 | ||
| 4,6-Dinitro-o-cresol | 4 | 0 | 0 | ||
| Naphthalene | 4 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 4 | 0 | 0 | ||
| Di-n-butyl phthalate | 4 | 0 | 0 | ||
| Vinyl chloride | 4 | 0 | 0 | ||
| Trichloroethylene | 4 | 0 | 0 | ||
| Hexachlorobenzene | 4 | 0 | 0 | ||
| Hexachlorobutadiene | 4 | 0 | 0 | ||
| 1,3-Dichloropropene | 4 | 0 | 0 | ||
| pH, minimum | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 24, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| February 24, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 23, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 12, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 12, 2024 | Permit Violations - Violation Specified in Comment | 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.
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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 CTP001473 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.