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City of Athens Water Treatment Plant

Water Supply, Athens, Ohio. NPDES permit OH0030139, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 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 (18)

ParameterStatisticLimitMonths
Conductivitymonthly averagereport only (umho/cm)all year
Conductivitydaily maximumreport only (umho/cm)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 18.2 kg/dall year
Solids, total suspendeddaily maximum≤ 27.3 kg/dall year
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Flow, maximum during 24 hr periodmonthly averagereport only (MGD)all year
Flow, maximum during 24 hr perioddaily maximumreport only (MGD)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
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)Sep
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)Sep
Duration of dischargemonthly averagereport only (hr)all year
Duration of dischargedaily maximumreport only (hr)all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0030139 · MCP: https://passage-data.com/mcp