Passage Data · Check a report · Use it from your AI

Oneida WWTF

Sewage treatment plant, Oneida, Wisconsin. NPDES permit WI0071323, in force until Apr 10, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A quarterly (31 values), form Q quarterly (3 values)
Renewal application due
Oct 13, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
8 values over a limit, 30 required values missing, 0 of 18 reports late

Limits in force (36)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 50 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 75 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 8.5 SUall year
pHdaily minimumreport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspended30-day average≤ 10 mg/Lall year
Solids, total suspended7-day average≤ 15 mg/Lall year
Solids, total suspended30-day average≤ 25 lb/dall year
Solids, total suspended7-day average≤ 38 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]30-day average≤ 5.59 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 9.87 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 9.87 mg/LMay–Oct
Nitrogen, ammonia total [as N]30-day average≤ 14 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 24.7 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 24.7 lb/dMay–Oct
Phosphorus, total [as P]30-day average≤ .75 mg/Lall year
Phosphorus, total [as P]daily maximum≤ 1 mg/Lall year
Phosphorus, total [as P]30-day average≤ 1.9 lb/dall year
Phosphorus, total [as P]daily maximum≤ 2.5 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. coligeometric mean≤ 126 #/100mLMay–Sep
E. colidaily maximum≤ 235 #/100mLMay–Sep
Mercury, total [as Hg]30-day average≤ 8 ng/Lall year
Mercury, total [as Hg]30-day average≤ .000021 lb/dall year
Mercury, total [as Hg]30-day averagereport only (ng/L)all year
BOD, 5-day, percent removalmonthly minimum≥ 85 %all year
Outfall observation,visual, y/n response30-day averagereport only (N=0;Y=1)all year

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0071323 · MCP: https://passage-data.com/mcp