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Lindsay, City of

Water Supply, Lindsay, Oklahoma. NPDES permit OK0040576, in force until Nov 30, 2028. Last 12 months: over a limit 4 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (14 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, daily maximum32 mg/L≤ 30 mg/L7%
January 2026Solids, total suspended, daily maximum89 mg/L≤ 30 mg/L197%
January 2026Solids, total suspended, monthly average22.89 mg/L≤ 20 mg/L14%
February 2026Solids, total dissolved- 180 deg. C, monthly average3278 mg/L≤ 2897 mg/L13%

Limits in force (14)

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≤ 15 lb/dall year
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all 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
Solids, total dissolved- 180 deg. Cmonthly average≤ 2897 mg/Lall year
Solids, total dissolved- 180 deg. Cdaily maximum≤ 3684 mg/Lall year
Solids, total dissolved- 180 deg. Cmonthly average≤ 2174 lb/dall 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/OK0040576 · MCP: https://passage-data.com/mcp