City of Fond du Lac

NPDES permit WI0023990 · Major POTW · expired, expires 2023-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2023-03-31 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
3required values missing, on 3 form(s)
2of 29 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (50)

OutfallParameterStatisticLimitMonths
003BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CDAILY MX report only all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedWKLY AVG <= 45 mg/L all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX report only all year
003Nitrogen, ammonia total [as N]WKLY AVG <= 17 mg/L Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]WKLY AVG <= 33 mg/L Oct, Nov
003Nitrogen, ammonia total [as N]WKLY AVG <= 34 mg/L Jan, Feb, Mar
003Nitrogen, ammonia total [as N]WKLY AVG <= 34 mg/L Apr, May
003Nitrogen, ammonia total [as N]WKLY AVG <= 34 mg/L Dec
003Nitrogen, ammonia total [as N]MO AVG <= 34 mg/L Dec
003Nitrogen, ammonia total [as N]MO AVG <= 6.1 mg/L Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]MO AVG <= 19 mg/L Apr, May
003Nitrogen, ammonia total [as N]MO AVG <= 13 mg/L Oct, Nov
003Nitrogen, ammonia total [as N]MO AVG <= 22 mg/L Jan, Feb, Mar
003Nitrogen, ammonia total [as N]DAILY MX report only Dec
003Nitrogen, ammonia total [as N]DAILY MX report only Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]DAILY MX report only Apr, May
003Nitrogen, ammonia total [as N]DAILY MX report only Oct, Nov
003Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar
003Phosphorus, total [as P]MO AVG <= .8 mg/L all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]ANNL AVG report only all year
003Phosphorus, total [as P]MO TOTAL report only all year
003Phosphorus, total [as P]ANNL MAX report only all year
003Nickel, total recoverableDAILY MX report only all year
003Zinc, total recoverableDAILY MX report only all year
003Cadmium, total recoverableDAILY MX report only all year
003Lead, total recoverableDAILY MX report only all year
003Chromium, total recoverableDAILY MX report only all year
003Copper, total recoverableDAILY MX report only all year
003Mercury, total recoverableQB report only all year
003Coliform, fecal generalWK GEOMN <= 656 #/100mL May, Jun, Jul, Aug, Sep
003Coliform, fecal generalGEO MEAN <= 400 #/100mL May, Jun, Jul, Aug, Sep
703BOD, 5-day, 20 deg. CMO AVG report only all year
703BOD, 5-day, 20 deg. CDAILY MX report only all year
703Solids, total suspendedMO AVG report only all year
703Solids, total suspendedDAILY MX report only all year
703Nickel, total recoverableDAILY MX report only all year
703Zinc, total recoverableDAILY MX report only all year
703Cadmium, total recoverableDAILY MX report only all year
703Lead, total recoverableDAILY MX report only all year
703Chromium, total recoverableDAILY MX report only all year
703Copper, total recoverableDAILY MX report only all year
703Flow, in conduit or thru treatment plantMO AVG report only all year
703Flow, in conduit or thru treatment plantDAILY MX report only all year
703Mercury, 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