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City of Rhinelander

Sewage treatment plant, major discharger, Rhinelander, Wisconsin. NPDES permit WI0020044, in force until Dec 31, 2026. Last 12 months: no values over a limit, 13 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 005 form A monthly (8 values), outfall 005 form Q quarterly (3 values), outfall 702 form A monthly (4 values)
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (15)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year005
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year005
Solids, total suspendedweekly average≤ 45 mg/Lall year005
Solids, total suspendedmonthly average≤ 30 mg/Lall year005
Nitrogen, total [as N]quarterly maximumreport only (mg/L)all year005
Nitrogen, ammonia total [as N]monthly maximumreport only (mg/L)all year005
Nitrogen, Kjeldahl, total [as N]quarterly maximumreport only (mg/L)all year005
Nitrite + Nitrate total [as N]quarterly maximumreport only (mg/L)all year005
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year005
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year702
BOD, 5-day, 20 deg. Cmonthly maximumreport only (mg/L)all year702
Solids, total suspendedmonthly averagereport only (mg/L)all year702
Solids, total suspendedmonthly maximumreport only (mg/L)all year702

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/WI0020044 · MCP: https://passage-data.com/mcp