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Western Iowa Energy, LLC

Industrial Organic Chemicals, Wall Lake, Iowa. NPDES permit IA0079855, in force until Aug 31, 2029. Last 12 months: over a limit once (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (10 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period ending	Parameter	Reported	Limit	Over by
February 2026	Iron, total [as Fe], daily maximum	1.12	≤ 1 mg/L	12%

Limits in force (10)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6.5 SU	all year
pH	daily maximum	≤ 9 SU	all year
Iron, total [as Fe]	30-day average	≤ 1 mg/L	all year
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year
Iron, total [as Fe]	30-day average	≤ .83 lb/d	all year
Iron, total [as Fe]	daily maximum	≤ .83 lb/d	all year
Chlorine, total residual	30-day average	≤ .012 mg/L	all year
Chlorine, total residual	daily maximum	≤ .02 mg/L	all year
Chlorine, total residual	30-day average	≤ .01 lb/d	all year
Chlorine, total residual	daily maximum	≤ .017 lb/d	all year

How strict are these limits?

Chlorine, total residual, daily maximum .02 mg/L — stricter than 71% of 107 other minor industrial and other permits in Iowa; 3% have the same limit
Chlorine, total residual, 30-day average .012 mg/L — stricter than 70% of 106 other minor industrial and other permits in Iowa; 5% have the same limit
pH, daily minimum at least 6.5 SU — stricter than 60% of 423 other minor industrial and other permits in Iowa; 39% have the same limit

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

Same industry: the 57 Chemicals and Allied Products permits in Iowa.

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Your permit document is the final word. As JSON: /api/v1/permits/IA0079855 · MCP: https://passage-data.com/mcp