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Stratford PWA

Sewage treatment plant, Stratford, Oklahoma. NPDES permit OK0021865, in force until Sep 30, 2031. Last 12 months: over a limit 16 times (last August 2026), 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Last report on file
September 2026
Oct 2024 – Sep 2025
18 values over a limit, 0 required values missing, 2 of 12 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
October 2025pH, maximum9.78 SU≤ 9 SU—
November 2025pH, maximum9.65 SU≤ 9 SU—
December 2025pH, maximum9.94 SU≤ 9 SU—
January 2026Solids, total suspended, monthly average96 mg/L≤ 90 mg/L7%
January 2026pH, maximum9.98 SU≤ 9 SU—
February 2026pH, maximum9.43 SU≤ 9 SU—
March 2026BOD, 5-day, 20 deg. C, monthly average156 lb/d≤ 40 lb/d290%
March 2026BOD, 5-day, 20 deg. C, monthly average59.9 mg/L≤ 30 mg/L100%
March 2026BOD, 5-day, 20 deg. C, weekly average81.4 mg/L≤ 45 mg/L81%
March 2026Solids, total suspended, monthly average174 lb/d≤ 120.1 lb/d45%
March 2026pH, maximum9.83 SU≤ 9 SU—
April 2026pH, maximum9.94 SU≤ 9 SU—
May 2026pH, maximum10.08 SU≤ 9 SU—
June 2026pH, maximum10.05 SU≤ 9 SU—
July 2026pH, maximum10.05 SU≤ 9 SU—
August 2026pH, maximum10.15 SU≤ 9 SU—

Limits in force (10)

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≤ 40 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≤ 120.1 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

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/OK0021865 · MCP: https://passage-data.com/mcp