Passage Data · Check a report · Use it from your AI

Northern Area Water Authority

Water Supply, Tipp City, Ohio. NPDES permit OH0134147 expired Aug 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (12 values), outfall 601 form A monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Residue, tot fltrble [dried at 105 C]monthly averagereport only (mg/L)all year001
Residue, tot fltrble [dried at 105 C]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Chloride [as Cl]monthly averagereport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Barium, total recoverablemonthly averagereport only (ug/L)all year001
Barium, total recoverabledaily maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year099
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year099
Bypass valvemonthly averagereport only (occur/mo)all year099
Bypass valvedaily maximumreport only (occur/mo)all year099
Bypass of treatmentmonthly averagereport only (hr/mo)all year099
Bypass of treatmentdaily maximumreport only (hr/mo)all year099
Solids, total suspendedmonthly average≤ 30 mg/Lall year601
Solids, total suspendeddaily maximum≤ 45 mg/Lall year601
Iron, suspendedmonthly average≤ 1000 ug/Lall year601
Iron, suspendeddaily maximum≤ 2000 ug/Lall year601
Manganese, suspendedmonthly average≤ 1000 ug/Lall year601
Manganese, suspendeddaily maximum≤ 2000 ug/Lall year601
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year601
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year601

How strict are these limits?

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

Same industry: the 147 Water Supply permits in Ohio.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0134147 · MCP: https://passage-data.com/mcp