The Thames Shipyard & Repair Company

NPDES permit CT0030333 · Minor NON-POTW · effective, expires 2030-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
48required values missing, on 3 form(s)
7of 38 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 31 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (120)

OutfallParameterStatisticLimitMonths
101Temperature, water deg. fahrenheitDAILY MX report only all year
101Oxygen, dissolved [DO]DAILY MX report only all year
101pHMAXIMUM report only all year
101Alkalinity, total [as CaCO3]DAILY MX report only all year
101SalinityDAILY MX report only all year
101Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec
101Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec
101Solids, total suspendedDAILY MX report only all year
101Nitrogen, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, total [as N]DAILY MX report only all year
101Nitrogen, ammonia total [as N]DAILY MX report only all year
101Nitrogen, nitrite total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, nitrite total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, nitrite total [as N]DAILY MX report only all year
101Nitrogen, nitrate total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, nitrate total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, nitrate total [as N]DAILY MX report only all year
101Nitrogen, Kjeldahl, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, Kjeldahl, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
101Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
101Hardness, total [as CaCO3]DAILY MX report only all year
101Copper, dissolved [as Cu]DAILY MX report only all year
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
101Copper, total [as Cu]DAILY MX report only all year
101Iron, total [as Fe]DAILY MX report only Mar, Jun, Sep, Dec
101Iron, total [as Fe]DAILY MX report only Mar, Jun, Sep, Dec
101Iron, total [as Fe]DAILY MX report only all year
101Zinc, dissolved [as Zn]DAILY MX report only all year
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
101Zinc, total [as Zn]DAILY MX report only all year
101Flow, maximum during 24 hr periodDAILY MX <= 5 MGD Mar, Jun, Sep, Dec
101Flow, maximum during 24 hr periodDAILY MX <= 5 MGD Mar, Jun, Sep, Dec
101Chlorine, total residualDAILY MX report only all year
101Specific ConductanceDAILY MX report only all year
101Date of Sample CollectionDAILY MX report only all year
101pH, maximumINST MAX <= 8.5 SU Mar, Jun, Sep, Dec
101pH, maximumINST MAX <= 8.5 SU Mar, Jun, Sep, Dec
101pH, maximumINST MAX report only Mar, Jun, Sep, Dec
101pH, maximumINST MAX report only Mar, Jun, Sep, Dec
101pH, maximumINST MAX report only Mar, Jun, Sep, Dec
101pH, maximumINST MAX report only Mar, Jun, Sep, Dec
101pH, minimumINST MIN >= 6.8 SU Mar, Jun, Sep, Dec
101pH, minimumINST MIN >= 6.8 SU Mar, Jun, Sep, Dec
101pH, minimumINST MIN report only Mar, Jun, Sep, Dec
101pH, minimumINST MIN report only Mar, Jun, Sep, Dec
101pH, minimumINST MIN report only Mar, Jun, Sep, Dec
101pH, minimumINST MIN report only Mar, Jun, Sep, Dec
101LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
101LC50 Static 48Hr Acute MenidiaMINIMUM >= 100 % all year
102Temperature, water deg. fahrenheitDAILY MX report only all year
102Oxygen, dissolved [DO]DAILY MX report only all year
102pHMAXIMUM report only all year
102Alkalinity, total [as CaCO3]DAILY MN report only all year
102SalinityDAILY MX report only all year
102Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec
102Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec
102Solids, total suspendedDAILY MX report only all year
102Nitrogen, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, total [as N]DAILY MX report only all year
102Nitrogen, ammonia total [as N]DAILY MX report only all year
102Nitrogen, nitrite total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, nitrite total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, nitrite total [as N]DAILY MX report only all year
102Nitrogen, nitrate total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, nitrate total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, nitrate total [as N]DAILY MX report only all year
102Nitrogen, Kjeldahl, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, Kjeldahl, total [as N]DAILY MX report only Mar, Jun, Sep, Dec
102Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
102Hardness, total [as CaCO3]DAILY MX report only all year
102Copper, dissolved [as Cu]DAILY MX report only all year
102Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
102Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
102Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
102Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
102Copper, total [as Cu]DAILY MX report only all year
102Iron, total [as Fe]DAILY MX report only Mar, Jun, Sep, Dec
102Iron, total [as Fe]DAILY MX report only Mar, Jun, Sep, Dec
102Iron, total [as Fe]DAILY MX report only all year
102Zinc, dissolved [as Zn]DAILY MX report only all year
102Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
102Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
102Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
102Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
102Zinc, total [as Zn]DAILY MX report only all year
102Flow, maximum during 24 hr periodDAILY MX <= 2 MGD Mar, Jun, Sep, Dec
102Flow, maximum during 24 hr periodDAILY MX <= 2 MGD Mar, Jun, Sep, Dec
102Chlorine, total residualDAILY MX report only all year
102Specific ConductanceDAILY MX report only all year
102Date of Sample CollectionDAILY MX report only all year
102pH, maximumINST MAX <= 8.5 SU Mar, Jun, Sep, Dec
102pH, maximumINST MAX <= 8.5 SU Mar, Jun, Sep, Dec
102pH, minimumINST MIN >= 6.8 SU Mar, Jun, Sep, Dec
102pH, minimumINST MIN >= 6.8 SU Mar, Jun, Sep, Dec
102LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
102LC50 Static 48Hr Acute MenidiaMINIMUM >= 100 % all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states