Northwest Hardwoods - Hamden Division

NPDES permit OH0090875 · Minor NON-POTW · effective, expires 2028-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 4 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (10)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [low level] [COD]MO AVG report only Mar, Jun, Aug, Dec
001Oxygen demand, chem. [low level] [COD]DAILY MX report only Mar, Jun, Aug, Dec
001pHDAILY MN >= 6.5 SU Mar, Jun, Aug, Dec
001pHDAILY MX <= 9 SU Mar, Jun, Aug, Dec
001Solids, total suspendedMO AVG <= 30 mg/L Mar, Jun, Aug, Dec
001Solids, total suspendedDAILY MX <= 70 mg/L Mar, Jun, Aug, Dec
001Zinc, total [as Zn]MO AVG report only Mar, Jun, Aug, Dec
001Zinc, total [as Zn]DAILY MX report only Mar, Jun, Aug, Dec
001Flow, in conduit or thru treatment plantMO AVG report only Mar, Jun, Aug, Dec
001Flow, in conduit or thru treatment plantDAILY MX report only Mar, Jun, Aug, Dec

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