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Council, City of

Sewage treatment plant, Council, Idaho. NPDES permit ID0020087 expired Aug 30, 2025; its limits still apply. Last 12 months: over a limit 3 times (last April 2026), 12 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form F1 monthly (3 values), outfall 001 form F2 monthly (3 values), outfall 001 form F3 monthly (3 values), outfall 001 form M monthly (25 values), outfall 001 form MF monthly (4 values), outfall REC1 form M monthly (3 values), and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 76 reports late

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

Period endingParameterReportedLimitOver by
April 2026Solids, total suspended, monthly average113 lb/d≤ 100 lb/d13%
April 2026Solids, total suspended, weekly average208 lb/d≤ 150 lb/d39%
April 2026Solids, total suspended, weekly average46 mg/L≤ 45 mg/L2%

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademaximum daily average≤ 19.3 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 19.3 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 19.3 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 24.9 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 22.1 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 20.7 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 30.6 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 24.9 deg Call year001
Temperature, water deg. centigrademaximum daily average≤ 22.1 deg Call year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 100 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 150 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 100 lb/dall year001
Solids, total suspendedweekly average≤ 150 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 11.3 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 29.6 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 36.7 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 96.1 lb/dall year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year001
E. coli, MTEC-MFinstantaneous maximumreport only (#/100mL)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .1 mg/Lall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chlorine, total residualmonthly average≤ .3 lb/dall year001
Chlorine, total residualdaily maximum≤ .7 lb/dall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Temperature, water deg. centigrademaximum daily averagereport only (deg C)all yearREC1
Stream flow, instantaneousmonthly averagereport only (cfs)all yearREC1
Stream flow, instantaneousdaily minimumreport only (cfs)all yearREC1
pHinstantaneous minimumreport only (SU)all yearREC1
pHinstantaneous maximumreport only (SU)all yearREC1
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearREC1

How strict are these limits?

Cited limits by parameter: Idaho'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/ID0020087 · MCP: https://passage-data.com/mcp