Clean Water Act discharge permit · NPDES CTP001416
NATIONAL CHROMIUM CO. INC., Putnam, CT: NPDES CTP001416 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
NATIONAL CHROMIUM CO. INC., held by NATIONAL CHROMIUM COMPANY, INC, holds NPDES permit CTP001416, which discharges to Quinebaug River. EPA’s file records it issued February 25, 2010 and expiring February 28, 2015. 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 | NATIONAL CHROMIUM CO. INC. |
|---|---|
| Permittee as filed | NATIONAL CHROMIUM COMPANY, INC |
| NPDES ID | CTP001416 |
| 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 | February 25, 2010 |
| Expiration date | February 28, 2015 |
| Issuing agency | CT DEP |
| Address | Putnam, CT 06260 |
| Receiving water | QUINEBAUG RIVER |
| Other EPA IDs (FRS) | RCRA handler CTD001160811; ICIS-AIR source CT0000000901501721 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 16Pollutants on file
- 13Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| pH | 0 | 8 | 8 | September 30, 2021 | |
| Chromium, hexavalent [as Cr] | 2 | 7 | 7 | April 30, 2019 | 413% over the limit |
| Chromium, total [as Cr] | 2 | 7 | 7 | April 30, 2025 | 850% over the limit |
| pH, maximum | 0 | 6 | 5 | November 30, 2021 | |
| pH, minimum | 0 | 5 | 5 | September 30, 2023 | |
| Lead, total [as Pb] | 2 | 1 | 1 | May 31, 2007 | 1% over the limit |
| Nickel, total [as Ni] | 2 | 1 | 1 | July 31, 2006 | 75% over the limit |
| Fluoride, total [as F] | 2 | 2 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Flow rate | 1 | 0 | 0 | ||
| Solids, total suspended | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 21, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 21, 2023 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| November 21, 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
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, CTP001416.
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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 CTP001416 there.
Nearby on the register
- Discharge permits in Putnam
- Every permit record in Putnam, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.