Clean Water Act discharge permit · NPDES CTP000372
O F MOSSBERG & SONS INC, North Haven, CT: NPDES CTP000372 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
O F MOSSBERG & SONS INC holds NPDES permit CTP000372, which discharges to Quinnipiac River. EPA’s file records it issued April 13, 2011 and expiring April 30, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | O F MOSSBERG & SONS INC |
|---|---|
| Permittee as filed | O F MOSSBERG & SONS INC |
| NPDES ID | CTP000372 |
| 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 | April 13, 2011 |
| Expiration date | April 30, 2016 |
| Issuing agency | CT DEP |
| Address | North Haven, CT 06473 |
| Receiving water | QUINNIPIAC RIVER |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 17Under a numeric limit
- 16With a violation of any kind
- 10With 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, minimum | 1 | 20 | 19 | November 30, 2022 | |
| pH | 2 | 20 | 16 | November 30, 2022 | |
| pH, maximum | 1 | 7 | 6 | July 31, 2022 | |
| Nickel, total [as Ni] | 2 | 9 | 5 | June 30, 2026 | 142% over the limit |
| Zinc, total [as Zn] | 2 | 4 | 4 | June 30, 2026 | 42% over the limit |
| Lead, total [as Pb] | 2 | 7 | 2 | February 28, 2021 | 251% over the limit |
| Chromium, total [as Cr] | 2 | 6 | 2 | June 30, 2026 | 122% over the limit |
| Oil petroleum, total recoverable | 2 | 4 | 2 | August 31, 2020 | 414% over the limit |
| Organics, total toxic [TTO] | 1 | 4 | 2 | June 30, 2026 | 196% over the limit |
| Copper, total [as Cu] | 2 | 5 | 1 | June 30, 2022 | 35% over the limit |
| Flow | 1 | 4 | 0 | ||
| Flow rate | 1 | 3 | 0 | ||
| Flow, maximum during 24 hr period | 1 | 3 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Solids, total suspended | 1 | 1 | 0 | ||
| Cyanide, total [as CN] | 1 | 1 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 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
- 14Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 15, 2026 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| May 15, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| May 15, 2026 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| May 15, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| May 15, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| March 27, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 27, 2025 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| March 27, 2025 | Management Practice Violations - Failure to Maintain Records | ST6 |
| April 23, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 23, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
| August 25, 2023 | Reporting Violations - Failure to Notify | ST6 |
| August 25, 2023 | Monitoring Violations - Analysis not Conducted | ST6 |
| August 25, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| August 25, 2023 | Management Practice Violations - Failure to Maintain Records | 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 CTP000372 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.