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John Lilley Correctional Center

Sewage treatment plant, Boley, Oklahoma. NPDES permit OK0044971, in force until Jun 30, 2028. Last 12 months: over a limit 17 times (last August 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (13 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
35 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average20 mg/L≤ 15 mg/L33%
October 2025pH, maximum9.7 SU≤ 9 SU—
November 2025pH, maximum9.46 SU≤ 9 SU—
April 2026pH, maximum9.22 SU≤ 9 SU—
May 2026pH, maximum9.84 SU≤ 9 SU—
June 2026BOD, carbonaceous [5 day, 20 C], monthly average14.2 mg/L≤ 10 mg/L42%
June 2026Solids, total suspended, monthly average42.5 mg/L≤ 15 mg/L183%
June 2026Solids, total suspended, weekly average42.5 mg/L≤ 22.5 mg/L89%
June 2026pH, maximum10.15 SU≤ 9 SU—
July 2026BOD, carbonaceous [5 day, 20 C], monthly average12.5 mg/L≤ 10 mg/L25%
July 2026Solids, total suspended, monthly average25 mg/L≤ 15 mg/L67%
July 2026Solids, total suspended, weekly average25 mg/L≤ 22.5 mg/L11%
July 2026pH, maximum10.14 SU≤ 9 SU—
August 2026BOD, carbonaceous [5 day, 20 C], monthly average11 mg/L≤ 10 mg/L10%
August 2026Solids, total suspended, monthly average26.3 mg/L≤ 15 mg/L75%
August 2026Solids, total suspended, weekly average26.3 mg/L≤ 22.5 mg/L17%
August 2026pH, maximum9.98 SU≤ 9 SU—

Limits in force (25)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 15 lb/dJan, Feb, Mar, Nov, Dec
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/LApr, May
Solids, total suspendedmonthly average≤ 90 mg/LJan, Feb, Mar, Nov, Dec
Solids, total suspendedmonthly average≤ 15 mg/LJun–Oct
Solids, total suspendedweekly average≤ 45 mg/LApr, May
Solids, total suspendedweekly average≤ 135 mg/LJan, Feb, Mar, Nov, Dec
Solids, total suspendedweekly average≤ 22.5 mg/LJun–Oct
Solids, total suspendedmonthly average≤ 15 lb/dApr, May
Solids, total suspendedmonthly average≤ 45 lb/dJan, Feb, Mar, Nov, Dec
Solids, total suspendedmonthly average≤ 7.5 lb/dJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LJun–Oct
Nitrogen, ammonia total [as N]weekly average≤ 10.5 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 3.5 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
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LApr, May
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/LApr, May
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 lb/dJun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7.5 lb/dApr, May

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/OK0044971 · MCP: https://passage-data.com/mcp