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Bonners Ferry, City of

Sewage treatment plant, Bonners Ferry, Idaho. NPDES permit ID0020222 expired Oct 31, 2016; its limits still apply. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (23 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
August 2026Solids, total suspended, monthly average50.7 mg/L≤ 45 mg/L13%

Limits in force (23)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily averagereport only (deg C)all year
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 169 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 244 lb/dall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 169 lb/dall year
Solids, total suspendedweekly average≤ 65 mg/Lall year
Solids, total suspendedweekly average≤ 244 lb/dall year
Nitrogen, ammonia total [as N]monthly maximumreport only (mg/L)all year
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year
E. coli, MTEC-MFinstantaneous maximum≤ 406 #/100mLall year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualmonthly average≤ 1.9 lb/dall year
Chlorine, total residualweekly average≤ .75 mg/Lall year
Chlorine, total residualweekly average≤ 2.8 lb/dall year
Solids, floating - visual determinationmonthly maximum≤ 0 d/moall year
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year
Solids, suspended percent removalmonthly average minimum≥ 65 %all year

How strict are these limits?

Cited limits by parameter: Idaho'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/ID0020222 · MCP: https://passage-data.com/mcp