Twin Lakes Village

NPDES permit WI0021695 · Major POTW · expired, expires 2023-09-30 · 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 2023-09-30 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

7values over a limit
36required values missing, on 11 form(s)
2of 25 forms filed late

Last period with anything received: 2026-06-30. Most often over: Chloride [as Cl] (5), Nitrogen, ammonia total [as N] (2).

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 (47)

OutfallParameterStatisticLimitMonths
003Oxygen, dissolved [DO]DAILY MN >= 7 mg/L all year
003BOD, 5-day, 20 deg. CWKLY AVG <= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CWKLY AVG <= 10 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003BOD, 5-day, 20 deg. CMO AVG <= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003BOD, 5-day, 20 deg. CDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedWKLY AVG <= 10 mg/L all year
003Solids, total suspendedMO AVG <= 10 mg/L all year
003Solids, total suspendedDAILY MX report only all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, total [as N]QB report only all year
003Nitrogen, ammonia total [as N]WKLY AVG <= 10 mg/L Jan, Feb, Mar, Nov, Dec
003Nitrogen, ammonia total [as N]WKLY AVG <= 9.2 mg/L Oct
003Nitrogen, ammonia total [as N]WKLY AVG <= 6.4 mg/L Apr
003Nitrogen, ammonia total [as N]WKLY AVG <= 2.7 mg/L May, Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]MO AVG <= 4.2 mg/L Jan, Feb, Mar, Nov, Dec
003Nitrogen, ammonia total [as N]MO AVG <= 3.7 mg/L Oct
003Nitrogen, ammonia total [as N]MO AVG <= 2.6 mg/L Apr
003Nitrogen, ammonia total [as N]MO AVG <= 1.1 mg/L May, Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Nov, Dec
003Nitrogen, ammonia total [as N]DAILY MX report only Oct
003Nitrogen, ammonia total [as N]DAILY MX report only Apr
003Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
003Nitrogen, Kjeldahl, total [as N]QB report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]QB report only all year
003Phosphorus, total [as P]MO AVG <= .7 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
003Chloride [as Cl]WKLY AVG <= 600 mg/L all year
003Chloride [as Cl]MO AVG report only all year
003Chloride [as Cl]DAILY MX report only all year
003Chloride [as Cl]MO AVG report only all year
003Chloride [as Cl]DAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Coliform, fecal generalWK GEOMN <= 780 #/100mL May, Jun, Jul, Aug, Sep
003Coliform, 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

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