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Trails End MHP

Sewerage Systems, Catoosa, Oklahoma. NPDES permit OK0037494, in force until Feb 29, 2028. Last 12 months: over a limit 12 times (last April 2026), 13 required values missing, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (13 values)
Renewal application due
Sep 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 13 required values missing, 4 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, instantaneous maximum.43 mg/L≤ .099 mg/L334%
October 2025E. coli, daily maximum39200 CFU/100mL≤ 2030 CFU/100mL1831%
November 2025BOD, 5-day, 20 deg. C, monthly average33 mg/L≤ 20 mg/L65%
November 2025BOD, 5-day, 20 deg. C, monthly average33 mg/L≤ 20 mg/L65%
November 2025BOD, 5-day, 20 deg. C, weekly average33 mg/L≤ 30 mg/L10%
November 2025BOD, 5-day, 20 deg. C, weekly average33 mg/L≤ 30 mg/L10%
November 2025Chlorine, total residual, instantaneous maximum.42 mg/L≤ .099 mg/L324%
November 2025Chlorine, total residual, instantaneous maximum.42 mg/L≤ .099 mg/L324%
February 2026BOD, 5-day, 20 deg. C, monthly average30 mg/L≤ 20 mg/L50%
March 2026BOD, 5-day, 20 deg. C, monthly average67 mg/L≤ 20 mg/L235%
March 2026BOD, 5-day, 20 deg. C, weekly average67 mg/L≤ 30 mg/L123%
April 2026BOD, 5-day, 20 deg. C, monthly average3.75 lb/d≤ 3.3 lb/d14%

Limits in force (15)

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≤ 3.3 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≤ 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
Chlorine, total residualinstantaneous maximum≤ .099 mg/Lall 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

How strict are these limits?

Cited limits by parameter: Oklahoma's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/OK0037494 · MCP: https://passage-data.com/mcp