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Missouri American Water Company

Water Supply, Jefferson City, Missouri. NPDES permit MO0004600 expired Dec 31, 2014; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form B quarterly (4 values)
Last report on file: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (4)

Parameter	Statistic	Limit	Months
pH	daily minimum	report only (SU)	all year
pH	daily maximum	report only (SU)	all year
Chlorine, total residual	daily maximum	report only (ug/L)	all year
Chlorine, total residual	monthly average	report only (ug/L)	all year

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

Same industry: the 18 Water Supply permits in Missouri.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0004600 · MCP: https://passage-data.com/mcp