Tilcon Connecticut, Inc.

NPDES permit CT0030597 · Minor NON-POTW · administratively continued, expires 2022-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2022-02-28 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)
2of 11 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 (14)

OutfallParameterStatisticLimitMonths
101Solids, total suspendedINST MAX report only all year
101Oil & GreaseINST MAX report only all year
101Nitrogen, total [as N]INST MAX report only all year
101Nitrogen, nitrate total [as N]INST MAX report only all year
101Nitrogen, Kjeldahl, total [as N]INST MAX report only all year
101Phosphorus, total [as P]INST MAX report only all year
101Copper, total [as Cu]INST MAX report only all year
101Zinc, total [as Zn]INST MAX report only all year
101Aluminum, total [as Al]INST MAX report only all year
101pH, maximumINST MAX <= 9 SU all year
101pH, minimumINST MIN >= 6 SU all year
101Chemical Oxygen Demand [COD]INST MAX report only all year
101NOAEL Static 48Hr Acute D. pulexINST MIN >= 90 % all year
101NOAEL Static 48Hr Acute Pimephales promelasINST MIN >= 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