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Hansen, City of

Sewage treatment plant, Hansen, Idaho. NPDES permit ID0022446 expired Oct 31, 2012; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form A monthly (30 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (30)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 31 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≤ 47 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≤ 7 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 19 lb/dall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]monthly average≤ 3.3 lb/dall year
Phosphorus, total [as P]weekly average≤ 6.6 lb/dall 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 averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualweekly average≤ .75 mg/Lall year
Chlorine, total residualmonthly average≤ .5 lb/dall year
Chlorine, total residualweekly average≤ .8 lb/dall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all 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/ID0022446 · MCP: https://passage-data.com/mcp