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Westville Utility Authority

Sewage treatment plant, Westville, Oklahoma. NPDES permit OK0028126 expired Jun 30, 2010; its limits still apply. Last 12 months: no values over a limit, 19 required values missing, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (19 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 17 required values missing, 2 of 12 reports late

Limits in force (33)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 6 mg/LApr, May
Oxygen, dissolved [DO]monthly minimum≥ 5 mg/LJun–Oct
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/LJan, Feb, Mar, 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≤ 15 mg/LJun–Oct
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedweekly average≤ 22.5 mg/LJun–Oct
Solids, total suspendedmonthly average≤ 70.1 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedmonthly average≤ 35 lb/dJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LApr–Oct
Nitrogen, ammonia total [as N]weekly average≤ 11.3 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 9.3 lb/dApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 17.5 lb/dJan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]monthly average≤ 2.34 lb/dall year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 12 mg/LApr, May
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13 mg/LJan, Feb, Mar, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 18 mg/LApr, May
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 19.5 mg/LJan, Feb, Mar, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 28 lb/dApr, May
BOD, carbonaceous [5 day, 20 C]monthly average≤ 23.4 lb/dJun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30.4 lb/dJan, Feb, Mar, Nov, Dec

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/OK0028126 · MCP: https://passage-data.com/mcp