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Webbers Falls, City of

Sewage treatment plant, Webbers Falls, Oklahoma. NPDES permit OK0034631, in force until May 31, 2029. Last 12 months: over a limit 19 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
15 values over a limit, 6 required values missing, 1 of 12 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average30.9 mg/L≤ 30 mg/L3%
October 2025pH, maximum9.2 SU≤ 9 SU—
November 2025pH, maximum9.1 SU≤ 9 SU—
December 2025BOD, 5-day, 20 deg. C, monthly average58.6 mg/L≤ 30 mg/L95%
December 2025BOD, 5-day, 20 deg. C, weekly average58.6 mg/L≤ 45 mg/L30%
December 2025pH, maximum9.44 SU≤ 9 SU—
January 2026BOD, 5-day, 20 deg. C, monthly average40.6 mg/L≤ 30 mg/L35%
January 2026pH, maximum9.31 SU≤ 9 SU—
February 2026pH, maximum9.57 SU≤ 9 SU—
March 2026BOD, 5-day, 20 deg. C, monthly average38.8 mg/L≤ 30 mg/L29%
March 2026pH, maximum9.66 SU≤ 9 SU—
April 2026BOD, 5-day, 20 deg. C, monthly average60.5 mg/L≤ 30 mg/L102%
April 2026BOD, 5-day, 20 deg. C, weekly average60.5 mg/L≤ 45 mg/L34%
April 2026pH, maximum9.54 SU≤ 9 SU—
May 2026BOD, 5-day, 20 deg. C, monthly average33.6 mg/L≤ 30 mg/L12%
May 2026Solids, total suspended, monthly average106 mg/L≤ 90 mg/L18%
May 2026pH, maximum9.67 SU≤ 9 SU—
June 2026pH, maximum9.74 SU≤ 9 SU—
July 2026pH, maximum9.81 SU≤ 9 SU—

Limits in force (14)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 11.3 lb/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedweekly average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 33.8 lb/dall 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
E. coligeometric mean≤ 126 CFU/100mLMay–Sep
E. coligeometric mean≤ 630 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
E. colidaily maximum≤ 406 CFU/100mLMay–Sep
E. colidaily maximum≤ 2030 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec

Cited limits by parameter: Oklahoma'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/OK0034631 · MCP: https://passage-data.com/mcp