Clean Water Act discharge permit · NPDES CT0000892
TILCON CONNECTICUT, INC., North Branford, CT: NPDES CT0000892 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 19Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
TILCON CONNECTICUT, INC. holds NPDES permit CT0000892, which discharges to Farm River. EPA’s file records it issued June 1, 1994 and expiring June 1, 1999. 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 | TILCON CONNECTICUT, INC. |
|---|---|
| Permittee as filed | TILCON CONNECTICUT, INC. |
| NPDES ID | CT0000892 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 1, 1994 |
| Expiration date | June 1, 1999 |
| Issuing agency | CT DEP |
| Address | North Branford, CT 06471 |
| Receiving water | FARM RIVER |
| Subwatershed | Indian River-Frontal Long Island Sound (HUC 011000040208) |
| SIC | 1429 – Crushed And Broken Stone |
| Other EPA IDs (FRS) | ICIS-AIR source CT0000000900900134 |
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
- 25Pollutants on file
- 19Under a numeric limit
- 22With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Flow, maximum during 24 hr period | 0 | 6 | 6 | October 31, 2021 | 13% over the limit |
| pH | 4 | 6 | 4 | June 30, 2025 | |
| Flow | 2 | 3 | 1 | August 31, 2021 | 0% over the limit |
| Oil & Grease | 4 | 26 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 9 | 0 | ||
| Lead, total [as Pb] | 4 | 6 | 0 | ||
| Zinc, total [as Zn] | 4 | 6 | 0 | ||
| Solids, total suspended | 2 | 5 | 0 | ||
| Copper, total [as Cu] | 4 | 4 | 0 | ||
| Nickel, total [as Ni] | 4 | 4 | 0 | ||
| Surfactants [MBAS] | 4 | 4 | 0 | ||
| Chlorine, total residual | 4 | 4 | 0 | ||
| Pass/Fail Static 48Hr Acute D. Pulex | 2 | 4 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 2 | 4 | 0 | ||
| Duration of discharge | 2 | 3 | 0 | ||
| Solids, total dissolved | 4 | 2 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Iron, total [as Fe] | 0 | 2 | 0 | ||
| Aluminum, total [as Al] | 0 | 2 | 0 | ||
| NOAEL Static 48Hr Acute D. pulex | 0 | 2 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 0 | 2 | 0 | ||
| Flow rate | 2 | 1 | 0 | ||
| Turbidity | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Sodium, total [as Na] | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 30, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2023 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| June 30, 2023 | Monitoring Violations - Failure to Monitor for Toxicity Requirements | ST6 |
| June 30, 2023 | 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.
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, CT0000892.
Start the watch
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How we handle your data → Privacy
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 CT0000892 there.
Nearby on the register
- Discharge permits in North Branford
- Every permit record in North Branford, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.