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Water Supply, Marcus, Iowa. NPDES permit IA0053550, in force until Nov 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
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/IA0053550 · MCP: https://passage-data.com/mcp