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Oberlin City of

Water Supply, Oberlin, Ohio. NPDES permit OH0045195, in force until Jan 31, 2027. 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 (27 values)
Renewal application due
Aug 4, 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 (27)

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≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 20 mg/Lall year
Solids, total suspendedmonthly average≤ .57 kg/dall year
Solids, total suspendeddaily maximum≤ .76 kg/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)Jun–Sep
Phosphorus, total [as P]daily maximumreport only (mg/L)Jun–Sep
Dichlorobromomethanemonthly averagereport only (ug/L)Jun–Sep
Dichlorobromomethanedaily maximumreport only (ug/L)Jun–Sep
Bromoformmonthly averagereport only (ug/L)Jun–Sep
Bromoformdaily maximumreport only (ug/L)Jun–Sep
Dibromochloromethanemonthly averagereport only (ug/L)Jun–Sep
Dibromochloromethanedaily maximumreport only (ug/L)Jun–Sep
Chloroformmonthly averagereport only (ug/L)Jun–Sep
Chloroformdaily maximumreport only (ug/L)Jun–Sep
Methyl bromide [Bromomethane]monthly averagereport only (ug/L)Jun–Sep
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)Jun–Sep
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)Jun–Sep
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)Jun–Sep
Methylene chloridemonthly averagereport only (ug/L)Jun–Sep
Methylene chloridedaily maximumreport only (ug/L)Jun–Sep
Chlorine, total residualdaily maximum≤ .038 mg/Lall year
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.

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/OH0045195 · MCP: https://passage-data.com/mcp