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Newton County Regional Water & Sewer District - WTP

Water Supply, Mount Ayr, Indiana. NPDES permit IN0064556, in force until May 31, 2027. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (21 values)
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
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 (21)

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
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]monthly average≤ 2600 mg/Lall year
Sulfate, total [as SO4]daily maximum≤ 3800 mg/Lall year
Iron, total recoverablemonthly averagereport only (mg/L)all year
Iron, 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/LApr–Oct
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all 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/IN0064556 · MCP: https://passage-data.com/mcp