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Cryotech Deicing Technology

Chemical Preparations, Fort Madison, Iowa. NPDES permit IA0003387, in force until Apr 30, 2031. Last 12 months: over a limit once (last January 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (2 values), outfall 002 form A monthly (6 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
January 2026Temperature, water deg. fahrenheit, 30-day average82.6≤ 78.2 deg F6%

Limits in force (8)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Iron, total [as Fe]30-day average≤ 4.01 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 4.01 mg/Lall year002
Iron, total [as Fe]30-day average≤ 12.66 lb/dall year002
Iron, total [as Fe]daily maximum≤ 12.66 lb/dall year002

New limits from Apr 1, 2031

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Iron, total [as Fe], 30-day average16.02 lb/dnew——
Iron, total [as Fe], 30-day average1.98 mg/Lnew——
Iron, total [as Fe], daily maximum1.98 mg/Lnew——
Iron, total [as Fe], daily maximum16.02 lb/dnew——

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0003387 · MCP: https://passage-data.com/mcp