TILCON CONNECTICUT, INC.

NPDES permit CT0030635 · Minor NON-POTW · administratively continued, expires 2019-05-31 · 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.

This permit expired on 2019-05-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
4of 22 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 (26)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [low level] [COD]INST MAX report only all year
001Solids, total suspendedINST MAX report only all year
001Oil & GreaseINST MAX report only all year
001Nitrogen, nitrate total [as N]INST MAX report only all year
001Nitrogen, Kjeldahl, total [as N]INST MAX report only all year
001Phosphorus, total [as P]INST MAX report only all year
001Copper, total [as Cu]INST MAX report only all year
001Zinc, total [as Zn]INST MAX report only all year
001Aluminum, total [as Al]INST MAX report only all year
001pH, maximumINST MAX <= 9 SU all year
001pH, minimumINST MIN >= 6 SU all year
001NOAEL Static 48Hr Acute D. pulexMINIMUM >= 90 % all year
001NOAEL Static 48Hr Acute Pimephales promelasMINIMUM >= 90 % all year
002Oxygen demand, chem. [low level] [COD]INST MAX report only all year
002Solids, total suspendedINST MAX report only all year
002Oil & GreaseINST MAX report only all year
002Nitrogen, nitrate total [as N]INST MAX report only all year
002Nitrogen, Kjeldahl, total [as N]INST MAX report only all year
002Phosphorus, total [as P]INST MAX report only all year
002Copper, total [as Cu]INST MAX report only all year
002Zinc, total [as Zn]INST MAX report only all year
002Aluminum, total [as Al]INST MAX report only all year
002pH, maximumINST MAX <= 9 SU all year
002pH, minimumINST MIN >= 6 SU all year
002NOAEL Static 48Hr Acute D. pulexMINIMUM >= 90 % all year
002NOAEL Static 48Hr Acute Pimephales promelasMINIMUM >= 90 % 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