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Indiana American Water - West Lafayette District

Water Supply, West Lafayette, Indiana. NPDES permit IN0063380, in force until Apr 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (13 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (13)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Iron, total recoverablemonthly average≤ 3.2 mg/Lall year
Iron, total recoverabledaily maximum≤ 5.5 mg/Lall year
Manganese, total recoverablemonthly averagereport only (mg/L)all year
Manganese, total recoverabledaily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average< .06 mg/Lall year
Chlorine, total residualdaily maximum< .06 mg/Lall year
Flow, totalmonthly totalreport only (Mgal/mo)all year

How strict are these limits?

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

Same industry: the 95 Water Supply permits in Indiana.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0063380 · MCP: https://passage-data.com/mcp