CITY OF WATERTOWN

NPDES permit WI0028541 · Major POTW · expired, expires 2025-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-09-30 and is expired: 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
11required values missing, on 10 form(s)
0of 43 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WI permits in EPA's filings — check your permit).

Limits in force (35)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO MAX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 10 mg/L all year
001Solids, total suspendedMO AVG <= 10 mg/L all year
001Nitrogen, total [as N]QB report only all year
001Nitrogen, Kjeldahl, total [as N]QB report only all year
001Nitrite + Nitrate total [as N]QB report only all year
001Phosphorus, total [as P]ANNL AVG report only all year
001Phosphorus, total [as P]ANNL MAX report only all year
001Nickel, total recoverableQB report only all year
001Cadmium, total recoverableQB report only all year
001Lead, total recoverableQB report only all year
001Chromium, total recoverableQB report only all year
001Copper, total recoverableQB report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO MAX report only all year
001Mercury, total recoverableDAILY MX <= 3.7 ng/L all year
102Mercury, total recoverableQB report only all year
103Flow, in conduit or thru treatment plantMO AVG report only all year
103Flow, in conduit or thru treatment plantMO MAX report only all year
701BOD, 5-day, 20 deg. CMO AVG report only all year
701BOD, 5-day, 20 deg. CMO MAX report only all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedMO MAX report only all year
701Nickel, total recoverableQB report only all year
701Zinc, total recoverableQB report only all year
701Cadmium, total recoverableQB report only all year
701Lead, total recoverableQB report only all year
701Chromium, total recoverableQB report only all year
701Copper, total recoverableQB report only all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantMO MAX report only all year
701Mercury, total recoverableQB report only 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