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Glenns Ferry, City of

Sewage treatment plant, Glenns Ferry, Idaho. NPDES permit ID0022004 expired Dec 31, 2016; its limits still apply. Last 12 months: over a limit 3 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form A monthly (26 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
February 2026Solids, total suspended, monthly average33 mg/L≤ 30 mg/L10%
March 2026Solids, total suspended, monthly average31 mg/L≤ 30 mg/L3%
July 2026E. coli, MTEC-MF, instantaneous maximum1600 #/100mL≤ 406 #/100mL294%

Limits in force (26)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 125 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 188 lb/dall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 125 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 188 lb/dall year
Nitrogen, ammonia total [as N]monthly maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 6.1 mg/Lall year
Phosphorus, total [as P]monthly maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 25.6 lb/dall year
Phosphorus, total [as P]monthly maximumreport only (mg/L)all year
Phosphorus, total [as P]weekly average≤ 38.4 lb/dall year
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year
E. coli, MTEC-MFinstantaneous maximum≤ 406 #/100mLall year
Floating solids, waste or visible foam-visualmonthly maximum≤ 0 N=0;Y=1all year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year
BOD, 5-day, percent removalmonthly minimum≥ 85 %all year
Solids, suspended percent removalmonthly minimum≥ 85 %all year
Oil and grease visualmonthly maximum≤ 0 N=0;Y=1all year

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/ID0022004 · MCP: https://passage-data.com/mcp