Clean Water Act discharge permit · NPDES CTP000065
LANXESS SOLUTIONS US INC., Naugatuck, CT: NPDES CTP000065 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 45Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
LANXESS SOLUTIONS US INC., held by Lanxess Solutions US Inc., holds NPDES permit CTP000065, which discharges to Naugatuck River. EPA’s file records it issued March 18, 2009 and expiring March 31, 2014. 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 | LANXESS SOLUTIONS US INC. |
|---|---|
| Permittee as filed | Lanxess Solutions US Inc. |
| NPDES ID | CTP000065 |
| 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 | March 18, 2009 |
| Expiration date | March 31, 2014 |
| Issuing agency | CT DEP |
| Address | Naugatuck, CT 06770 |
| Receiving water | NAUGATUCK RIVER |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 47Pollutants on file
- 45Under a numeric limit
- 28With 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 |
|---|---|---|---|---|---|
| Zinc, total [as Zn] | 2 | 105 | 105 | May 31, 2008 | 10,751% over the limit |
| Flow, maximum during 24 hr period | 1 | 49 | 48 | August 31, 2010 | 1,132% over the limit |
| Flow rate | 1 | 17 | 16 | April 30, 2005 | 8,854% over the limit |
| pH | 2 | 6 | 6 | July 31, 2008 | |
| Toluene | 1 | 4 | 3 | January 31, 2007 | 29% over the limit |
| Acetone | 2 | 3 | 2 | July 31, 2002 | 1,264% over the limit |
| Chlorobenzene | 1 | 2 | 1 | June 30, 2002 | 25% over the limit |
| Ethylbenzene | 1 | 2 | 1 | February 28, 2002 | 4% over the limit |
| Lead, total [as Pb] | 1 | 1 | 1 | February 29, 2008 | 58% over the limit |
| 1,2,4-Trimethylbenzene | 0 | 1 | 1 | December 31, 2021 | 95% over the limit |
| Benzene | 1 | 5 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 4 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 1 | 4 | 0 | ||
| Anthracene | 0 | 4 | 0 | ||
| Base neutrals & acid [Method 625], total | 1 | 3 | 0 | ||
| Flow | 1 | 2 | 0 | ||
| Organics, tot purgeables [Method 624] | 1 | 2 | 0 | ||
| Aniline | 2 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 1 | 0 | ||
| Methylene chloride | 1 | 1 | 0 | ||
| N-Nitrosodiphenylamine | 1 | 1 | 0 | ||
| Isopropylbenzene | 1 | 1 | 0 | ||
| n-Propylbenzene | 1 | 1 | 0 | ||
| 1,3,5-Trimethylbenzene | 1 | 1 | 0 | ||
| 1,2,4,5-Tetramethylbenzene | 1 | 1 | 0 | ||
| Diphenylamine | 1 | 1 | 0 | ||
| Xylene [mix of m+o+p] | 1 | 1 | 0 | ||
| ortho-xylene | 1 | 1 | 0 | ||
| Oxygen demand, chem. [low level] [COD] | 1 | 0 | 0 | ||
| Solids, total suspended | 1 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Nitrogen, nitrite total [as N] | 1 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Purgeable hydrocarbons, Meth. 601 | 1 | 0 | 0 | ||
| Purgeable aromatics Method 602 | 1 | 0 | 0 | ||
| 4-Isopropyltoluene | 1 | 0 | 0 | ||
| 1,2-Dichloroethane | 1 | 0 | 0 | ||
| Isophorone | 1 | 0 | 0 | ||
| Nitrobenzene | 1 | 0 | 0 | ||
| Carbon disulfide | 1 | 0 | 0 | ||
| Carbazole | 1 | 0 | 0 | ||
| Methyl ethyl ketone | 1 | 0 | 0 | ||
| Methyl isobutyl ketone | 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 |
|---|---|---|
| May 22, 2025 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| May 22, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 11, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 CTP000065 there.
Nearby on the register
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- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.