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City of Lester

Sewage treatment plant, Lester, Iowa. NPDES permit IA0026620 expired Feb 28, 2017; its limits still apply. Last 12 months: over a limit 4 times (last July 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (13 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 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
November 2025Flow, in conduit or thru treatment plant, daily maximum.325≤ .15 MGD117%
June 2026Chloride [as Cl], 30-day average499≤ 389 mg/L28%
June 2026Flow, in conduit or thru treatment plant, daily maximum.2≤ .15 MGD33%
July 2026Flow, in conduit or thru treatment plant, daily maximum.051≤ .045 MGD13%

Limits in force (13)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 80 mg/Lall year
Solids, total suspended7-day average≤ 120 mg/Lall year
Chloride [as Cl]30-day average≤ 389 mg/Lall year
Chloride [as Cl]daily maximum≤ 629 mg/Lall year
Chloride [as Cl]30-day average≤ 1086 lb/dall year
Chloride [as Cl]daily maximum≤ 1757 lb/dall year
Flow, in conduit or thru treatment plantdaily maximum≤ .15 MGDall year
Flow, in conduit or thru treatment plant30-day average≤ .03 MGDall year
Flow, in conduit or thru treatment plantdaily maximum≤ .045 MGDall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0026620 · MCP: https://passage-data.com/mcp