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Baker City, City of

Sewage treatment plant, major discharger, Baker City, Oregon. NPDES permit OR0020699 expired Oct 31, 2008; its limits still apply. Last 12 months: over a limit 2 times (last April 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (46 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 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
April 2026BOD, 5-day, 20 deg. C, monthly average57 mg/L≤ 45 mg/L27%
April 2026Solids, total suspended, monthly average86 mg/L≤ 85 mg/L1%

Limits in force (53)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)May–Oct
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)May–Oct
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)May–Oct
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)May–Oct
Thermal Dischargedaily maximum≤ 296.8253 MBTU/dall year
Flow ratemonthly averagereport only (cfs)all year
Flow ratedaily maximumreport only (cfs)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 750 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 1500 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 1100 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 85 mg/Lall year
Solids, total suspendedmonthly average≤ 1400 lb/dall year
Solids, total suspendeddaily maximum≤ 2800 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Solids, total suspendedweekly average≤ 140 mg/Lall year
Solids, total suspendedweekly average≤ 2100 lb/dall year
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Phosphate, ortho, dissolved [as P]daily maximumreport only (mg/L)all 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all 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 residualdaily average≤ .02 mg/Lall year
Chlorine, total residualdaily average≤ .02 mg/Lall year
Chlorine, total residualdaily maximumreport only (mg/L)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colisingle sample≤ 406 #/100mLall year
E. colilog meanreport only (#/100mL)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximum≤ 406 #/100mLall year
E. colilog mean≤ 126 #/100mLall year
E. colidaily maximumreport only (#/100mL)all year
Excess thermal loadmaximum weekly average≤ 74.8 kcal/dMay–Oct
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year
Solids, suspended percent removalmonthly average minimum≥ 65 %all year
Chlorine usagemonthly averagereport only (lb/d)all year
Chlorine usagedaily maximumreport only (lb/d)all year

Cited limits by parameter: Oregon'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/OR0020699 · MCP: https://passage-data.com/mcp