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Shawnee Municipal Authority-WTP

Water Supply, Shawnee, Oklahoma. NPDES permit OK0046051, in force until May 31, 2028. Last 12 months: over a limit 3 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (17 values), form Q quarterly (1 value)
Renewal application due
Dec 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
18 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, instantaneous maximum.8 mg/L≤ .099 mg/L708%
November 2025Chlorine, total residual, instantaneous maximum.8 mg/L≤ .099 mg/L708%
March 2026Solids, total suspended, monthly average21.66 mg/L≤ 20 mg/L8%

Limits in force (18)

ParameterStatisticLimitMonths
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 38.5 lb/dall year
Iron, dissolved [as Fe]monthly average≤ 1 mg/Lall year
Iron, dissolved [as Fe]daily maximum≤ 2 mg/Lall year
Iron, dissolved [as Fe]monthly average≤ 1.9 lb/dall year
Manganese, dissolved [as Mn]monthly average≤ 1 mg/Lall year
Manganese, dissolved [as Mn]daily maximum≤ 2 mg/Lall year
Manganese, dissolved [as Mn]monthly average≤ 1.9 lb/dall year
Aluminum, dissolved [as Al]monthly average≤ 1 mg/Lall year
Aluminum, dissolved [as Al]daily maximum≤ 2 mg/Lall year
Aluminum, dissolved [as Al]monthly average≤ 1.9 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
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year

How strict are these limits?

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

Same industry: the 49 Water Supply permits in Oklahoma.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0046051 · MCP: https://passage-data.com/mcp