NICHOLS WASTEWATER TREATMENT F

NPDES permit WI0020508 · Minor POTW · expired, expires 2022-06-30 · 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 2022-06-30 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

4values over a limit
6required values missing, on 3 form(s)
16of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: Nitrogen, ammonia total [as N] (2), BOD, 5-day, 20 deg. C (1), Solids, total suspended (1).

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 (75)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 7 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 12 mg/L Jul
001BOD, 5-day, 20 deg. CWKLY AVG <= 10 mg/L Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 33 mg/L Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 36 mg/L Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 26 mg/L Jan
001BOD, 5-day, 20 deg. CWKLY AVG <= 28 mg/L Feb
001BOD, 5-day, 20 deg. CWKLY AVG <= 38 mg/L Mar
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Apr, May
001BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L Jun
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Nov
001BOD, 5-day, 20 deg. CMO AVG <= 12 mg/L Jul
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L Aug
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L Sep
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Oct
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Dec
001BOD, 5-day, 20 deg. CMO AVG <= 26 mg/L Jan
001BOD, 5-day, 20 deg. CMO AVG <= 28 mg/L Feb
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Mar
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Apr, May
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jun
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Nov
001BOD, 5-day, 20 deg. CDAILY MX report only Jun
001BOD, 5-day, 20 deg. CMO AVG report only Jun
001BOD, 5-day, 20 deg. CWKLY AVG <= 3.3 lb/d Jul
001BOD, 5-day, 20 deg. CWKLY AVG <= 3 lb/d Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 4 lb/d Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 8.6 lb/d Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 9.6 lb/d Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 6.9 lb/d Jan
001BOD, 5-day, 20 deg. CWKLY AVG <= 7.4 lb/d Feb
001BOD, 5-day, 20 deg. CWKLY AVG <= 9.9 lb/d Mar
001BOD, 5-day, 20 deg. CWKLY AVG report only Apr, May
001BOD, 5-day, 20 deg. CWKLY AVG <= 7.8 lb/d Jun
001BOD, 5-day, 20 deg. CWKLY AVG report only Nov
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 12 mg/L Jul
001Solids, total suspendedWKLY AVG <= 10 mg/L Aug
001Solids, total suspendedWKLY AVG <= 15 mg/L Sep
001Solids, total suspendedWKLY AVG <= 33 mg/L Oct
001Solids, total suspendedWKLY AVG <= 45 mg/L Apr, May, Nov
001Solids, total suspendedWKLY AVG <= 36 mg/L Dec
001Solids, total suspendedWKLY AVG <= 26 mg/L Jan
001Solids, total suspendedWKLY AVG <= 28 mg/L Feb
001Solids, total suspendedWKLY AVG <= 38 mg/L Mar
001Solids, total suspendedWKLY AVG <= 30 mg/L Jun
001Solids, total suspendedMO AVG <= 12 mg/L Jul
001Solids, total suspendedMO AVG <= 10 mg/L Aug
001Solids, total suspendedMO AVG <= 15 mg/L Sep
001Solids, total suspendedMO AVG <= 30 mg/L Oct
001Solids, total suspendedMO AVG <= 30 mg/L Apr, May, Nov
001Solids, total suspendedMO AVG <= 30 mg/L Dec
001Solids, total suspendedMO AVG <= 26 mg/L Jan
001Solids, total suspendedMO AVG <= 28 mg/L Feb
001Solids, total suspendedMO AVG <= 30 mg/L Mar
001Solids, total suspendedMO AVG <= 30 mg/L Jun
001Nitrogen, ammonia total [as N]WKLY AVG <= 16 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 16 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 16 mg/L all year
001Phosphorus, total [as P]MO AVG <= 1.4 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualWKLY AVG <= 12 ug/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualMO AVG <= 12 ug/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= 38 ug/L May, Jun, Jul, Aug, Sep
001Coliform, fecal generalWK GEOMN <= 656 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal generalGEO MEAN <= 400 #/100mL May, Jun, Jul, Aug, Sep
701BOD, 5-day, 20 deg. CMO AVG report only all year
701BOD, 5-day, 20 deg. CDAILY MX report only all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedDAILY MX report only all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantDAILY MX 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