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Town of Port Wing

Sewage treatment plant, Port Wing, Wisconsin. NPDES permit WI0029670 expired Jun 30, 2021; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (9)

ParameterStatisticLimitMonthsOutfall
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year702
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year702
Solids, total suspendedmonthly averagereport only (mg/L)all year702
Solids, total suspendeddaily maximumreport only (mg/L)all year702
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year702
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year702

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0029670 · MCP: https://passage-data.com/mcp