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Swanton Water Treatment Plant

Water Supply, Swanton, Ohio. NPDES permit OH0030830, in force until Jul 31, 2030. 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 (22 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 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 2026Solids, total dissolved- 180 deg. C, monthly average2216≤ 1989 mg/L11%

Limits in force (24)

ParameterStatisticLimitMonths
Flow ratemonthly averagereport only (gal/d)all year
Flow ratedaily maximumreport only (gal/d)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 11 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec
Copper, total recoverablemonthly averagereport only (ug/L)Sep
Copper, total recoverabledaily maximumreport only (ug/L)Sep
Dichlorobromomethanemonthly averagereport only (ug/L)Sep
Dichlorobromomethanedaily maximumreport only (ug/L)Sep
Dibromochloromethanemonthly averagereport only (ug/L)Sep
Dibromochloromethanedaily maximumreport only (ug/L)Sep
Chloroformmonthly averagereport only (ug/L)Sep
Chloroformdaily maximumreport only (ug/L)Sep
Methyl bromide [Bromomethane]monthly averagereport only (ug/L)Sep
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)Sep
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)Sep
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)Sep
Methylene chloridemonthly averagereport only (ug/L)Sep
Methylene chloridedaily maximumreport only (ug/L)Sep
Chlorine, total residualdaily maximum≤ .038 mg/Lall year
Solids, total dissolved- 180 deg. Cmonthly average≤ 1989 mg/Lall 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/OH0030830 · MCP: https://passage-data.com/mcp