Passage Data · Check a report · Use it from your AI
Ship Building And Repairing, New London, Connecticut. NPDES permit CT0030333, in force until Jul 31, 2030. Last 12 months: no values over a limit, 44 required values missing, 6 of 34 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 101 |
| Oxygen, dissolved [DO] | daily maximum | report only (ug/L) | all year | 101 |
| pH | maximum | report only (SU) | all year | 101 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 101 |
| Salinity | daily maximum | report only (ppk) | all year | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 101 |
| Copper, dissolved [as Cu] | daily maximum | report only (mg/L) | all year | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 101 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 101 |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 101 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 101 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 5 MGD | Mar, Jun, Sep, Dec | 101 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 5 MGD | Mar, Jun, Sep, Dec | 101 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 101 |
| Specific Conductance | daily maximum | report only (umho/sec) | all year | 101 |
| Date of Sample Collection | daily maximum | report only (date) | all year | 101 |
| pH, maximum | instantaneous maximum | ≤ 8.5 SU | Mar, Jun, Sep, Dec | 101 |
| pH, maximum | instantaneous maximum | ≤ 8.5 SU | Mar, Jun, Sep, Dec | 101 |
| pH, maximum | instantaneous maximum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, maximum | instantaneous maximum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, maximum | instantaneous maximum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, maximum | instantaneous maximum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | ≥ 6.8 SU | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | ≥ 6.8 SU | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| pH, minimum | instantaneous minimum | report only (SU) | Mar, Jun, Sep, Dec | 101 |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | minimum | ≥ 100 % | all year | 101 |
| LC50 Static 48Hr Acute Menidia | minimum | ≥ 100 % | all year | 101 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 102 |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | all year | 102 |
| pH | maximum | report only (SU) | all year | 102 |
| Alkalinity, total [as CaCO3] | daily minimum | report only (mg/L) | all year | 102 |
| Salinity | daily maximum | report only (ppk) | all year | 102 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 102 |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year | 102 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 102 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 102 |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year | 102 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 102 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 102 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 2 MGD | Mar, Jun, Sep, Dec | 102 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 2 MGD | Mar, Jun, Sep, Dec | 102 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 102 |
| Specific Conductance | daily maximum | report only (umho/sec) | all year | 102 |
| Date of Sample Collection | daily maximum | report only (date) | all year | 102 |
| pH, maximum | instantaneous maximum | ≤ 8.5 SU | Mar, Jun, Sep, Dec | 102 |
| pH, maximum | instantaneous maximum | ≤ 8.5 SU | Mar, Jun, Sep, Dec | 102 |
| pH, minimum | instantaneous minimum | ≥ 6.8 SU | Mar, Jun, Sep, Dec | 102 |
| pH, minimum | instantaneous minimum | ≥ 6.8 SU | Mar, Jun, Sep, Dec | 102 |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | minimum | ≥ 100 % | all year | 102 |
| LC50 Static 48Hr Acute Menidia | minimum | ≥ 100 % | all year | 102 |
Cited limits by parameter: Connecticut's rules and the federal ones.
Same industry: the 4 Transportation Equipment permits in Connecticut.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CT0030333 · MCP: https://passage-data.com/mcp