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Westfir, City of

Sewage treatment plant, Westfir, Oregon. NPDES permit OR0028282 expired Jun 30, 2014; its limits still apply. Last 12 months: over a limit 33 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 16 days after each period: form A monthly (25 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
7 values over a limit, 4 required values missing, 1 of 12 reports late

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

All 33 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, daily maximum1410 #/100mL≤ 406 #/100mL247%
October 2025E. coli, monthly geometric mean1410 #/100mL≤ 126 #/100mL1019%
November 2025E. coli, monthly geometric mean260 #/100mL≤ 126 #/100mL106%
December 2025E. coli, daily maximum5170 #/100mL≤ 406 #/100mL1173%
December 2025E. coli, monthly geometric mean5170 #/100mL≤ 126 #/100mL4003%
January 2026BOD, 5-day, 20 deg. C, monthly average76 mg/L≤ 30 mg/L153%
January 2026BOD, 5-day, 20 deg. C, weekly average76 mg/L≤ 45 mg/L69%
January 2026BOD, 5-day, percent removal, monthly average minimum77.6 %≥ 85 %49%
January 2026E. coli, daily maximum600 #/100mL≤ 406 #/100mL48%
January 2026E. coli, monthly geometric mean600 #/100mL≤ 126 #/100mL376%
February 2026BOD, 5-day, 20 deg. C, monthly average67 mg/L≤ 30 mg/L123%
February 2026BOD, 5-day, 20 deg. C, weekly average67 mg/L≤ 45 mg/L49%
February 2026BOD, 5-day, percent removal, monthly average minimum44.2 %≥ 85 %272%
February 2026E. coli, daily maximum2480 #/100mL≤ 406 #/100mL511%
February 2026E. coli, monthly geometric mean2480 #/100mL≤ 126 #/100mL1868%
February 2026Solids, suspended percent removal, monthly average minimum78 %≥ 85 %47%
March 2026BOD, 5-day, 20 deg. C, monthly average48 mg/L≤ 30 mg/L60%
March 2026BOD, 5-day, 20 deg. C, weekly average48 mg/L≤ 45 mg/L7%
March 2026BOD, 5-day, percent removal, monthly average minimum73.3 %≥ 85 %78%
March 2026Solids, suspended percent removal, monthly average minimum75.7 %≥ 85 %62%
April 2026BOD, 5-day, 20 deg. C, monthly average40 mg/L≤ 30 mg/L33%
April 2026BOD, 5-day, percent removal, monthly average minimum81.8 %≥ 85 %21%
April 2026E. coli, monthly geometric mean230 #/100mL≤ 126 #/100mL83%
May 2026BOD, 5-day, 20 deg. C, monthly average50 mg/L≤ 20 mg/L150%
May 2026BOD, 5-day, 20 deg. C, weekly average50 mg/L≤ 30 mg/L67%
June 2026BOD, 5-day, 20 deg. C, monthly average44 mg/L≤ 20 mg/L120%
June 2026BOD, 5-day, 20 deg. C, weekly average44 mg/L≤ 30 mg/L47%
June 2026BOD, 5-day, percent removal, monthly average minimum82.4 %≥ 85 %17%
June 2026E. coli, monthly geometric mean236 #/100mL≤ 126 #/100mL87%
July 2026E. coli, daily maximum1550 #/100mL≤ 406 #/100mL282%
July 2026E. coli, monthly geometric mean1550 #/100mL≤ 126 #/100mL1130%
August 2026E. coli, daily maximum2380 #/100mL≤ 406 #/100mL486%
August 2026E. coli, monthly geometric mean2380 #/100mL≤ 126 #/100mL1789%

Limits in force (35)

ParameterStatisticLimitMonths
Temperature, water deg. centigradevaluereport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 5 lb/dMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 7.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximum≤ 10 lb/dMay–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/LMay–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 lb/dMay–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 11 lb/dJan, Feb, Mar, Apr, Nov, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
pHdaily minimumreport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 20 mg/LMay–Oct
Solids, total suspendedmonthly average≤ 50 mg/LJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedmonthly average≤ 5 lb/dMay–Oct
Solids, total suspendedmonthly average≤ 7.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendeddaily maximum≤ 10 lb/dMay–Oct
Solids, total suspendeddaily maximum≤ 15 lb/dJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 30 mg/LMay–Oct
Solids, total suspendedweekly average≤ 80 mg/LJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedweekly average≤ 7.5 lb/dMay–Oct
Solids, total suspendedweekly average≤ 11 lb/dJan, Feb, Mar, Apr, Nov, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximum≤ 406 #/100mLall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximumreport only (#/100mL)all 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: Oregon's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/OR0028282 · MCP: https://passage-data.com/mcp