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Collinsville, City of

Sewage treatment plant, Collinsville, Oklahoma. NPDES permit OK0027375, in force until Jun 30, 2028. Last 12 months: over a limit 27 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
30 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 27 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average210.7 lb/d≤ 192.7 lb/d9%
October 2025BOD, 5-day, 20 deg. C, monthly average31.23 mg/L≤ 30 mg/L4%
December 2025BOD, 5-day, 20 deg. C, monthly average283.77 lb/d≤ 192.7 lb/d47%
December 2025BOD, 5-day, 20 deg. C, monthly average39.57 mg/L≤ 30 mg/L32%
December 2025BOD, 5-day, 20 deg. C, weekly average59.7 mg/L≤ 45 mg/L33%
January 2026BOD, 5-day, 20 deg. C, monthly average614.45 lb/d≤ 192.7 lb/d219%
January 2026BOD, 5-day, 20 deg. C, monthly average96.03 mg/L≤ 30 mg/L220%
January 2026BOD, 5-day, 20 deg. C, weekly average110 mg/L≤ 45 mg/L144%
February 2026BOD, 5-day, 20 deg. C, monthly average240.13 lb/d≤ 192.7 lb/d25%
February 2026BOD, 5-day, 20 deg. C, monthly average43.1 mg/L≤ 30 mg/L44%
March 2026BOD, 5-day, 20 deg. C, monthly average387.92 lb/d≤ 192.7 lb/d101%
March 2026BOD, 5-day, 20 deg. C, monthly average64.33 mg/L≤ 30 mg/L114%
March 2026BOD, 5-day, 20 deg. C, weekly average73.6 mg/L≤ 45 mg/L64%
April 2026BOD, 5-day, 20 deg. C, monthly average518.61 lb/d≤ 192.7 lb/d169%
April 2026BOD, 5-day, 20 deg. C, monthly average89.8 mg/L≤ 30 mg/L199%
April 2026BOD, 5-day, 20 deg. C, weekly average106 mg/L≤ 45 mg/L136%
May 2026BOD, 5-day, 20 deg. C, monthly average248.36 lb/d≤ 192.7 lb/d29%
May 2026E. coli, daily maximum2420 MPN/100mL≤ 406 MPN/100mL496%
May 2026E. coli, geometric mean423.17 MPN/100mL≤ 126 MPN/100mL236%
May 2026pH, maximum9.21 SU≤ 9 SU—
June 2026E. coli, daily maximum1050 MPN/100mL≤ 406 MPN/100mL159%
June 2026pH, maximum9.22 SU≤ 9 SU—
July 2026E. coli, daily maximum2420 MPN/100mL≤ 406 MPN/100mL496%
July 2026pH, maximum9.21 SU≤ 9 SU—
August 2026E. coli, daily maximum980 MPN/100mL≤ 406 MPN/100mL141%
August 2026pH, maximum9.03 SU≤ 9 SU—
September 2026pH, maximum9.05 SU≤ 9 SU—

Limits in force (12)

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≤ 192.7 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≤ 578 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 MPN/100mLMay–Sep
E. colidaily maximum≤ 406 MPN/100mLMay–Sep

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/OK0027375 · MCP: https://passage-data.com/mcp