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City of Logan WTP

Water Supply, Logan, Ohio. NPDES permit OH0008656, in force until Apr 30, 2028. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (25 values)
Renewal application due
Nov 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
March 2026Toxicity [acute], Ceriodaphnia dubia, daily maximum2.4≤ 1 tox acute140%

Limits in force (25)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 12 mg/Lall year
Solids, total suspendeddaily maximum≤ 18 mg/Lall year
Solids, total suspendedmonthly average≤ 28.4 kg/dall year
Solids, total suspendeddaily maximum≤ 42.6 kg/dall year
Iron, suspendedmonthly average≤ 1000 ug/Lall year
Iron, suspendeddaily maximum≤ 2000 ug/Lall year
Iron, suspendedmonthly average≤ 2.37 kg/dall year
Iron, suspendeddaily maximum≤ 4.74 kg/dall year
Manganese, suspendedmonthly average≤ 1000 ug/Lall year
Manganese, suspendeddaily maximum≤ 2000 ug/Lall year
Manganese, suspendedmonthly average≤ 2.37 kg/dall year
Manganese, suspendeddaily maximum≤ 4.74 kg/dall year
Strontium, total recoverable, ug/Lmonthly averagereport only (ug/L)all year
Strontium, total recoverable, ug/Ldaily maximumreport only (ug/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 residualdaily maximum≤ .038 mg/Lall year
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteMar, Sep
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0008656 · MCP: https://passage-data.com/mcp