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Iowa American Water Company

Water Supply, Davenport, Iowa. NPDES permit IA0079430, in force until Aug 31, 2030. Last 12 months: no values over a limit. 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 (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 4 required values missing, 0 of 24 reports late

Limits in force (4)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002

New limits from Nov 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Aluminum, total [as Al], 30-day average outfall 00193.1 mg/Lnew——
Aluminum, total [as Al], daily maximum outfall 00193.1 mg/Lnew——
Aluminum, total [as Al], 30-day average outfall 00293.1 mg/Lnew——
Aluminum, total [as Al], daily maximum outfall 00293.1 mg/Lnew——
Aluminum, total [as Al], 30-day average outfall SUM1215.4 lb/dnew——
Aluminum, total [as Al], daily maximum outfall SUM1215.4 lb/dnew——

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

Same industry: the 48 Water Supply 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/IA0079430 · MCP: https://passage-data.com/mcp