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Village of Lomira

Sewage treatment plant, Lomira, Wisconsin. NPDES permit WI0020532 expired Sep 30, 2024; its limits still apply. Last 12 months: over a limit 3 times (last March 2026), 17 required values missing, 1 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (11 values), outfall 701 form A monthly (6 values), outfall 001 form AN yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 25 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
January 2026Chloride [as Cl], weekly average545≤ 469 mg/L16%
February 2026Chloride [as Cl], weekly average561.25≤ 469 mg/L20%
March 2026Chloride [as Cl], weekly average484.75≤ 469 mg/L3%

Limits in force (19)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 4 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendeddaily maximum≤ 30 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 18 mg/Lall year001
Phosphorus, total [as P]annual averagereport only (lb/yr)all year001
Phosphorus, total [as P]annual maximumreport only (lb/yr)all year001
Chloride [as Cl]weekly average≤ 469 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year701
BOD, 5-day, 20 deg. Cmonthly maximumreport only (mg/L)all year701
Solids, total suspendedmonthly averagereport only (mg/L)all year701
Solids, total suspendedmonthly maximumreport only (mg/L)all year701
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year701
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year701

How strict are these limits?

Cited limits by parameter: Wisconsin's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0020532 · MCP: https://passage-data.com/mcp