ELK MOUND WASTEWATER TREATMENT

NPDES permit WI0023914 · Minor POTW · expired, expires 2024-09-30 · 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 2024-09-30 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

3values over a limit
34required values missing, on 14 form(s)
0of 24 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (3).

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 (21)

OutfallParameterStatisticLimitMonths
002Oxygen, dissolved [DO]DAILY MN >= 4 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
002BOD, 5-day, 20 deg. CDAILY MX <= 30 mg/L all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Phosphorus, total [as P]MO AVG <= 7.7 mg/L all year
002Zinc, total recoverableWKLY AVG <= 120 ug/L all year
002Zinc, total recoverableMO AVG <= 120 ug/L all year
002Zinc, total recoverableDAILY MX <= 120 ug/L all year
002Zinc, total recoverableDAILY MX <= .51 lb/d all year
002Copper, total recoverableWKLY AVG <= 24 ug/L all year
002Copper, total recoverableDAILY MX <= 34 ug/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, 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
701Copper, 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