NPDES CTP000073 · Clean Water Act
STANCHEM, INCORPORATED, East Berlin, CT: NPDES CTP000073 discharge permit, effluent exceedances, inspections, penalties
STANCHEM, INCORPORATED, East Berlin, Connecticut: Individual industrial user permit CTP000073, held by STAN CHEM INC; Administratively continued; issued September 18, 2009, term to September 30, 2014, by CT DEP; discharges to CONNECTICUT RIVER.
40 of the 58 pollutants listed for NPDES CTP000073 have no violation or effluent exceedance.
- Solids, total suspended: 2 limits, 29 violations of any kind, 27 effluent exceedances, latest April 30, 2023, largest 190% over the limit.
- Zinc, total [as Zn]: 5 limits, 16 violations of any kind, 11 effluent exceedances, latest July 31, 2019, largest 284% over the limit.
- pH: 4 limits, 47 violations of any kind, 9 effluent exceedances, latest December 31, 2021.
- pH, minimum: 0 limits, 4 violations of any kind, 4 effluent exceedances, latest February 28, 2022.
- Flow, maximum during 24 hr period: 2 limits, 23 violations of any kind, 3 effluent exceedances, latest March 31, 2022, largest 66% over the limit.
- Flow rate: 2 limits, 16 violations of any kind, 2 effluent exceedances, latest September 30, 2016, largest 400% over the limit.
- pH, maximum: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest February 28, 2022.
- Lead, total [as Pb]: 5 limits, 7 violations of any kind, 1 effluent exceedance, latest January 31, 2006, largest 444% over the limit.
- Di-n-butyl phthalate: 4 limits, 5 violations of any kind, 1 effluent exceedance, latest May 31, 2011, largest 70% over the limit.
- Flow rate: 1 limit, 18 violations of any kind.
- Flow: 2 limits, 9 violations of any kind.
- Cyanide, total [as CN]: 4 limits, 8 violations of any kind.
- Toluene: 4 limits, 4 violations of any kind.
- Methylene chloride: 4 limits, 4 violations of any kind.
- Tetrachloroethylene: 4 limits, 4 violations of any kind.
- Trichloroethylene: 4 limits, 4 violations of any kind.
- Copper, total [as Cu]: 1 limit, 2 violations of any kind.
- 2-Butanone: 1 limit, 1 violation of any kind.
- Carbon tetrachloride: 4 limits.
- 1,2-Dichloroethane: 4 limits.
- Chloroform: 4 limits.
- Benzene: 4 limits.
- Acenaphthene: 4 limits.
- Anthracene: 4 limits.
- Chlorobenzene: 4 limits.
- Chloroethane, total weight: 4 limits.
- Diethyl phthalate: 4 limits.
- Dimethyl phthalate: 4 limits.
- Fluoranthene: 4 limits.
- Fluorene: 4 limits.
- Hexachloroethane: 4 limits.
- Methyl chloride [Chloromethane]: 4 limits.
- Nitrobenzene: 4 limits.
- Phenanthrene: 4 limits.
- Pyrene: 4 limits.
- 1,1-Dichloroethane: 4 limits.
- 1,1-Dichloroethylene: 4 limits.
- 1,1,1-Trichloroethane: 4 limits.
- 1,1,2-Trichloroethane: 4 limits.
- 1,2-Dichlorobenzene: 4 limits.
- trans-1,2-Dichloroethylene: 4 limits.
- 1,2,4-Trichlorobenzene: 4 limits.
- 1,3-Dichlorobenzene: 4 limits.
- 1,4-Dichlorobenzene: 4 limits.
- 2-Nitrophenol: 4 limits.
- 4-Nitrophenol: 4 limits.
- 4,6-Dinitro-o-cresol: 4 limits.
- Naphthalene: 4 limits.
- Ethylbenzene: 4 limits.
- Di[2-ethylhexyl] phthalate [DEHP]: 4 limits.
- Vinyl chloride: 4 limits.
- Hexachlorobenzene: 4 limits.
- Hexachlorobutadiene: 4 limits.
- 1,3-Dichloropropylene: 4 limits.
- 1,2-Dichloropropene: 4 limits.
- BOD, 5-day, 20 deg. C: 1 limit.
- Oil petroleum, total recoverable: 1 limit.
- Acetone: 1 limit.
- October 28, 2026: Permit Violations - Discharge Without a Valid Permit (ST6).
- October 28, 2026: Management Practice Violations - Failure to Maintain Records (ST6).
- October 28, 2026: Permit Violations - Violation Specified in Comment (ST6).
- October 28, 2026: Effluent Violations - Numeric effluent violation (ST6).
- October 28, 2026: Sampling (IU) (S).
- October 1, 2025: Management Practice Violations - Failure to Maintain Records (ST6).
- October 1, 2025: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
- March 13, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
- March 13, 2025: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 13, 2025: Permit Violations - Violation Specified in Comment (ST6).
- March 13, 2025: Reporting Violations - Improper/ Incorrect Reporting (ST6).
- March 13, 2025: Management Practice Violations - Failure to Maintain Records (ST6).
- June 12, 2024: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
STANCHEM, INCORPORATED among its neighbors
Its county: 209, 18 major; CTP000073 is minor permit.
Other permits in the county
- 400 FARMINGTON AVE, Farmington: CTGSN2831, minor, term to 2020-09-30
- A. DUIE PYLE COMPANIES, Southington: CTR050076, minor, term to 2030-09-30
- ABBOTT BALL CO, West Hartford: CTR050414, minor, term to 2030-09-30
- ABBOTT BALL COMPANY, West Hartford: CTP000747, minor, term to 2016-10-31
- ABF FREIGHT SYSTEM, INC., Enfield: CTGSI0110, minor, term to 2021-09-30
- ACME-MONACO COPORATION, New Britain: CTP001068, minor, term to 2012-05-31
- AHLSTROM NONWOVENS LLC, Windsor Locks: CT0000434, major, term to 2014-09-30
- AHLSTROM POWER WINDSOR LOCKS, LLC, Windsor Locks: CT0026476, minor, term to 2005-09-29
- AHLSTROM POWER WINDSOR LOCKS, LLC, Windsor Locks: CTP001279, minor, term to 2016-11-30
- ALDI INC - SOUTH WINDSOR DISTRIBUTION CENTER, South Windsor: CTR050115, minor, term to 2030-09-30
Identity
| Facility | STANCHEM, INCORPORATED |
|---|---|
| Permittee | STAN CHEM INC |
| NPDES ID | CTP000073 |
| Status | Administratively continued |
| Type | Individual industrial user permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | September 18, 2009 |
| Expires | September 30, 2014 |
| Agency | CT DEP |
| Address | East Berlin, CT 06023 |
| Receiving water | CONNECTICUT RIVER |
| Receiving water impaired | 303(D) Listed |
| SIC | 2821 – Plastics Materials And Resins |
| Other EPA IDs (FRS) | RCRA handler CTD047711346; ICIS-AIR source CT0000000900300001 |
NPDES CTP000073: effluent limits and exceedances
STANCHEM, INCORPORATED (NPDES CTP000073): 58 pollutants on file, 56 limited; 18 with a violation of any kind, 9 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 29 | 27 | April 30, 2023 | 190% over the limit |
| Zinc, total [as Zn] | 5 | 16 | 11 | July 31, 2019 | 284% over the limit |
| pH | 4 | 47 | 9 | December 31, 2021 | |
| pH, minimum | 0 | 4 | 4 | February 28, 2022 | |
| Flow, maximum during 24 hr period | 2 | 23 | 3 | March 31, 2022 | 66% over the limit |
| Flow rate | 2 | 16 | 2 | September 30, 2016 | 400% over the limit |
| pH, maximum | 0 | 2 | 2 | February 28, 2022 | |
| Lead, total [as Pb] | 5 | 7 | 1 | January 31, 2006 | 444% over the limit |
| Di-n-butyl phthalate | 4 | 5 | 1 | May 31, 2011 | 70% over the limit |
| Flow rate | 1 | 18 | 0 | ||
| Flow | 2 | 9 | 0 | ||
| Cyanide, total [as CN] | 4 | 8 | 0 | ||
| Toluene | 4 | 4 | 0 | ||
| Methylene chloride | 4 | 4 | 0 | ||
| Tetrachloroethylene | 4 | 4 | 0 | ||
| Trichloroethylene | 4 | 4 | 0 | ||
| Copper, total [as Cu] | 1 | 2 | 0 | ||
| 2-Butanone | 1 | 1 | 0 | ||
| Carbon tetrachloride | 4 | 0 | 0 | ||
| 1,2-Dichloroethane | 4 | 0 | 0 | ||
| Chloroform | 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 | ||
| Fluoranthene | 4 | 0 | 0 | ||
| Fluorene | 4 | 0 | 0 | ||
| Hexachloroethane | 4 | 0 | 0 | ||
| Methyl chloride [Chloromethane] | 4 | 0 | 0 | ||
| Nitrobenzene | 4 | 0 | 0 | ||
| Phenanthrene | 4 | 0 | 0 | ||
| Pyrene | 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-Dichlorobenzene | 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 | ||
| Ethylbenzene | 4 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 4 | 0 | 0 | ||
| Vinyl chloride | 4 | 0 | 0 | ||
| Hexachlorobenzene | 4 | 0 | 0 | ||
| Hexachlorobutadiene | 4 | 0 | 0 | ||
| 1,3-Dichloropropylene | 4 | 0 | 0 | ||
| 1,2-Dichloropropene | 4 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 0 | 0 | ||
| Oil petroleum, total recoverable | 1 | 0 | 0 | ||
| Acetone | 1 | 0 | 0 |
NPDES CTP000073: inspections, violations and enforcement
NPDES CTP000073: 12 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 28, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| October 28, 2026 | Management Practice Violations - Failure to Maintain Records | ST6 |
| October 28, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| October 28, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| October 1, 2025 | Management Practice Violations - Failure to Maintain Records | ST6 |
| October 1, 2025 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| March 13, 2025 | Reporting Violations - Late Submittal of DMRs | ST6 |
| March 13, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 13, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 13, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| March 13, 2025 | Management Practice Violations - Failure to Maintain Records | ST6 |
| June 12, 2024 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
NPDES CTP000073: 1 inspection
| Date | What EPA recorded | Agency |
|---|---|---|
| October 28, 2026 | Sampling (IU) | S |
NPDES CTP000073 (STANCHEM, INCORPORATED): no formal enforcement action and informal enforcement action on file.
Watch NPDES CTP000073
NPDES CTP000073: one email when its EPA record changes — $99/month.
Permits near NPDES CTP000073
NPDES CTP000073: 58 pollutant rows, 13 dated events; ICIS-NPDES download, loaded October 14, 2026.