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Payette, City of

Sewage treatment plant, major discharger, Payette, Idaho. NPDES permit ID0020672 expired Oct 31, 2019; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (35 values), outfall REC form Q monthly (10 values), outfall REC form R monthly (6 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 36 reports late

Limits in force (51)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademaximum daily averagereport only (deg C)all year001
Temperature, water deg. centigradehighest 7-day averagereport only (deg C)all year001
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year001
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all 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≤ 721 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 1081 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly 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≤ 721 lb/dall year001
Solids, total suspendedweekly average≤ 1081 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]instantaneous maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]instantaneous maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]instantaneous maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 78.2 lb/dall year001
Phosphorus, total [as P]weekly average≤ 149 lb/dall year001
Phosphate, ortho [as P]instantaneous maximumreport only (mg/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year001
E. coli, MTEC-MFinstantaneous maximum≤ 406 #/100mLall year001
Floating solids, waste or visible foam-visualmonthly maximum≤ 0 N=0;Y=1all 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≤ 122 ug/Lall year001
Chlorine, total residualdaily maximum≤ 250 ug/Lall year001
Chlorine, total residualmonthly average≤ 2.93 lb/dall year001
Chlorine, total residualdaily maximum≤ 6 lb/dall year001
Mercury, total recoverableinstantaneous maximumreport only (mg/L)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Toxicity, Chronictotalreport only (tox chronic)all year001
Temperature, water deg. centigrademaximum daily averagereport only (deg C)all yearREC
Temperature, water deg. centigradehighest 7-day averagereport only (deg C)all yearREC
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all yearREC
Temperature, water deg. centigrademaximum daily averagereport only (deg C)all yearREC
Temperature, water deg. centigradehighest 7-day averagereport only (deg C)all yearREC
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all yearREC
Stream flow, instantaneousmonthly minimumreport only (MGD)all yearREC
Stream flow, instantaneousmonthly maximumreport only (MGD)all yearREC
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all yearREC
pHinstantaneous minimumreport only (SU)all yearREC
pHinstantaneous maximumreport only (SU)all yearREC
pHinstantaneous minimumreport only (SU)all yearREC
pHinstantaneous maximumreport only (SU)all yearREC
Nitrogen, ammonia total [as N]quarterly maximumreport only (mg/L)all yearREC
Phosphorus, total [as P]quarterly maximumreport only (mg/L)all yearREC
Mercury, total recoverablemonthly maximumreport only (mg/L)all yearREC

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/ID0020672 · MCP: https://passage-data.com/mcp