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Huntington Water Dept. - North Water Plant

Water Supply, Huntington, Indiana. NPDES permit IN0063827, in force until Jul 31, 2031. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (11 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 1 value 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
June 2026	Solids, total suspended, monthly average	24.123 mg/L	≤ 20 mg/L	21%

Limits in force (11)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 20 mg/L	all year
Solids, total suspended	daily maximum	≤ 40 mg/L	all year
Arsenic, total recoverable	monthly average	report only (ug/L)	all year
Arsenic, total recoverable	daily maximum	report only (ug/L)	all year
Iron, total recoverable	monthly average	≤ 1.8 mg/L	all year
Iron, total recoverable	daily maximum	≤ 4.1 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Flow, total	monthly total	report only (Mgal/mo)	all year

How strict are these limits?

Iron, total recoverable, monthly average 1.8 mg/L — stricter than 61% of 90 other minor industrial and other permits in Indiana; 28% have the same limit
Iron, total recoverable, daily maximum 4.1 mg/L — stricter than 52% of 93 other minor industrial and other permits in Indiana; 35% have the same limit
Solids, total suspended, daily maximum 40 mg/L — stricter than 40% of 259 other minor industrial and other permits in Indiana; 40% have the same limit

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

Same industry: the 95 Water Supply permits in Indiana.

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Your permit document is the final word. As JSON: /api/v1/permits/IN0063827 · MCP: https://passage-data.com/mcp