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In-American Water Co - Franklin

Water Supply, Franklin, Indiana. NPDES permit IN0059307, in force until Jul 29, 2027. Last 12 months: over a limit 2 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (11 values)
Renewal application due: Jan 30, 2027 · 180 days before expiry; your permit may set another date
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
April 2026	pH, daily maximum	9.1 SU	≤ 9 SU
May 2026	pH, daily maximum	9.2 SU	≤ 9 SU

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
Iron, total recoverable	monthly average	≤ 2.4 mg/L	all year
Iron, total recoverable	daily maximum	≤ 5.5 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
Chlorine, total residual	monthly average	< .06 mg/L	all year
Chlorine, total residual	daily maximum	< .06 mg/L	all year
Flow, total	monthly total	report only (Mgal/mo)	all year

How strict are these limits?

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
Iron, total recoverable, monthly average 2.4 mg/L — stricter than 32% of 90 other minor industrial and other permits in Indiana; 26% have the same limit
Solids, total suspended, monthly average 20 mg/L — stricter than 30% of 428 other minor industrial and other permits in Indiana; 26% 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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0059307 · MCP: https://passage-data.com/mcp