Waukesha City

NPDES permit WI0029971 · Major POTW · administratively continued, expires 2018-06-30 · 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 2018-06-30 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

2values over a limit
89required values missing, on 20 form(s)
18of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: Oxygen, dissolved [DO] (1), BOD, 5-day, 20 deg. C (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 (73)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Oxygen, dissolved [DO]MINIMUM >= 7 mg/L Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Oct, Nov, Dec
001Oxygen, dissolved [DO]MINIMUM >= 6.7 mg/L Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 8.5 mg/L Jul, Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 10 mg/L Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 8.2 mg/L Sep
001BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
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 report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 12 mg/L Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 12 mg/L Feb
001Nitrogen, ammonia total [as N]WKLY AVG <= 13 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 11 mg/L Jan
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.9 mg/L Jul
001Nitrogen, ammonia total [as N]WKLY AVG <= 5.8 mg/L Sep
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.2 mg/L Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 10 mg/L Apr
001Nitrogen, ammonia total [as N]WKLY AVG <= 5.6 mg/L Jun
001Nitrogen, ammonia total [as N]WKLY AVG <= 8.5 mg/L May
001Nitrogen, ammonia total [as N]WKLY AVG <= 12 mg/L Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 10 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 5.1 mg/L Dec
001Nitrogen, ammonia total [as N]MO AVG <= 5.2 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 6 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L Jan
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Jul
001Nitrogen, ammonia total [as N]MO AVG <= 2.9 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Aug
001Nitrogen, ammonia total [as N]MO AVG <= 5.6 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 3.1 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 4.9 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 5.4 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 4.5 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX report only Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Nov
001Phosphorus, total [as P]MO AVG <= .7 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chloride [as Cl]WKLY AVG <= 690 mg/L all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Nickel, total recoverableDAILY MX report only all year
001Zinc, total recoverableDAILY MX report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Lead, total recoverableDAILY MX report only all year
001Chromium, total recoverableDAILY MX report only all year
001Copper, total recoverableDAILY MX report only 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
001Mercury, total recoverableDAILY MX report only all year
001Coliform, fecal generalGEO MEAN <= 400 #/100mL May, Jun, Jul, Aug, Sep
702BOD, 5-day, 20 deg. CMO AVG report only all year
702BOD, 5-day, 20 deg. CDAILY MX report only all year
702Solids, total suspendedMO AVG report only all year
702Solids, total suspendedDAILY MX report only all year
702Nickel, total recoverableDAILY MX report only all year
702Zinc, total recoverableDAILY MX report only all year
702Cadmium, total recoverableDAILY MX report only all year
702Lead, total recoverableDAILY MX report only all year
702Chromium, total recoverableDAILY MX report only all year
702Copper, total recoverableDAILY MX report only all year
702Flow, in conduit or thru treatment plantMO AVG report only all year
702Flow, in conduit or thru treatment plantDAILY MX report only all year
702Mercury, total recoverableDAILY 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