TILCON CONNECTICUT, INC.

NPDES permit CT0000892 · Minor NON-POTW · administratively continued, expires 2023-03-31 · 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 2023-03-31 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)
3of 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 (34)

OutfallParameterStatisticLimitMonths
102Flow rateINST MAX report only all year
102Flow rateDAILY MX report only all year
102TurbidityINST MAX report only all year
102pHINST MIN >= 6 SU all year
102pHINST MAX <= 9 SU all year
102pHINST MAX report only all year
102Solids, total suspendedINST MAX <= 20 mg/L all year
102Oil & GreaseINST MAX <= 5 mg/L all year
102Oil & GreaseINST MAX report only all year
102Nitrogen, total [as N]INST MAX report only all year
102Nitrogen, nitrate total [as N]INST MAX report only all year
102Nitrogen, Kjeldahl, total [as N]INST MAX report only all year
102Phosphorus, total [as P]INST MAX report only all year
102Phosphorus, dissolvedINST MAX report only all year
102Sodium, total [as Na]INST MAX report only all year
102Arsenic, total [as As]INST MAX report only all year
102Copper, total [as Cu]INST MAX report only all year
102Copper, total [as Cu]INST MAX report only all year
102Iron, total [as Fe]INST MAX report only all year
102Iron, total [as Fe]INST MAX report only all year
102Lead, total [as Pb]INST MAX report only all year
102Zinc, total [as Zn]INST MAX report only all year
102Zinc, total [as Zn]INST MAX report only all year
102Aluminum, total [as Al]INST MAX report only all year
102Aluminum, total [as Al]INST MAX report only all year
102Flow, maximum during 24 hr periodDAILY MX <= 2 MGD all year
102Flow, maximum during 24 hr periodDAILY MX <= 168000 gal/d all year
102Chlorine, total residualINST MAX report only all year
102Solids, total dissolvedINST MAX report only all year
102FlowDAILY MX <= 2 MGD all year
102FlowDAILY MX <= 168000 gal/d all year
102Duration of dischargeDAILY MX report only all year
102NOAEL Static 48Hr Acute D. pulexINST MIN >= 90 % all year
102NOAEL 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