Maple Grove Estates Sanitary District

NPDES permit WI0036552 · Minor POTW · expired, expires 2026-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-03-31 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

3values over a limit
0required values missing, on 0 form(s)
0of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: Chloride [as Cl] (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 (17)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Chloride [as Cl]WKLY AVG <= 576 mg/L all year
001Chloride [as Cl]DAILY MX <= 1015 mg/L all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]MO 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
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantMO MAX 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