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Tuttle PWA

Sewage treatment plant, Tuttle, Oklahoma. NPDES permit OK0100889, in force until Jun 30, 2028. Last 12 months: over a limit 6 times (last August 2026), 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (17 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, 20 deg. C, monthly average30.2 mg/L≤ 30 mg/L1%
April 2026pH, minimum6.03 SU≥ 6.5 SU—
May 2026E. coli, daily maximum411 MPN/100mL≤ 406 MPN/100mL1%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average25.4 mg/L≤ 8 mg/L218%
June 2026BOD, carbonaceous [5 day, 20 C], weekly average46.2 mg/L≤ 12 mg/L285%
August 2026Oxygen, dissolved [DO], minimum4.41 mg/L≥ 6.5 mg/L32%

Limits in force (23)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6.5 mg/LJun–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 62.6 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedmonthly average≤ 10 mg/LJun–Oct
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedweekly average≤ 15 mg/LJun–Oct
Solids, total suspendedmonthly average≤ 62.6 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedmonthly average≤ 20.9 lb/dJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LJun–Oct
Nitrogen, ammonia total [as N]weekly average≤ 3.5 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4.8 lb/dJun–Oct
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 MPN/100mLMay–Sep
E. colidaily maximum≤ 406 MPN/100mLMay–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16.7 lb/dJun–Oct

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/OK0100889 · MCP: https://passage-data.com/mcp