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Kaw City, Town of

Sewage treatment plant, Kaw City, Oklahoma. NPDES permit OK0028878, in force until Jan 31, 2029. Last 12 months: over a limit 27 times (last July 2026), 32 required values missing, 7 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
33 values over a limit, 12 required values missing, 10 of 12 reports late

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

All 27 values over a limit
Period endingParameterReportedLimitOver by
October 2025pH, minimum5.54 SU≥ 6.5 SU—
November 2025pH, minimum5.42 SU≥ 6.5 SU—
December 2025BOD, 5-day, 20 deg. C, monthly average21.4 mg/L≤ 20 mg/L7%
December 2025pH, minimum5.52 SU≥ 6.5 SU—
January 2026BOD, 5-day, 20 deg. C, monthly average11.38 lb/d≤ 8.3 lb/d37%
January 2026BOD, 5-day, 20 deg. C, monthly average11.38 lb/d≤ 8.3 lb/d37%
January 2026BOD, 5-day, 20 deg. C, monthly average30.8 mg/L≤ 20 mg/L54%
January 2026BOD, 5-day, 20 deg. C, monthly average30.8 mg/L≤ 20 mg/L54%
January 2026BOD, 5-day, 20 deg. C, weekly average30.8 mg/L≤ 30 mg/L3%
January 2026BOD, 5-day, 20 deg. C, weekly average30.8 mg/L≤ 30 mg/L3%
January 2026pH, minimum5.98 SU≥ 6.5 SU—
February 2026BOD, 5-day, 20 deg. C, monthly average25.8 mg/L≤ 20 mg/L29%
February 2026pH, minimum6.17 SU≥ 6.5 SU—
March 2026BOD, 5-day, 20 deg. C, monthly average22.1 mg/L≤ 20 mg/L11%
March 2026BOD, 5-day, 20 deg. C, monthly average8.59 lb/d≤ 8.3 lb/d3%
March 2026pH, minimum6.16 SU≥ 6.5 SU—
April 2026BOD, 5-day, 20 deg. C, monthly average34 mg/L≤ 20 mg/L70%
April 2026BOD, 5-day, 20 deg. C, monthly average34 mg/L≤ 20 mg/L70%
April 2026BOD, 5-day, 20 deg. C, weekly average34 mg/L≤ 30 mg/L13%
April 2026BOD, 5-day, 20 deg. C, weekly average34 mg/L≤ 30 mg/L13%
April 2026pH, minimum5.52 SU≥ 6.5 SU—
May 2026E. coli, daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
May 2026pH, minimum5.62 SU≥ 6.5 SU—
June 2026E. coli, daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
June 2026pH, minimum5.61 SU≥ 6.5 SU—
July 2026pH, maximum9.97 SU≤ 9 SU—
July 2026pH, minimum5.21 SU≥ 6.5 SU—

Limits in force (12)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 8.3 lb/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 12.5 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. colidaily maximum≤ 235 CFU/100mLMay–Sep

How strict are these limits?

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/OK0028878 · MCP: https://passage-data.com/mcp