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Upper Sandusky,City of

Water Supply, Upper Sandusky, Ohio. NPDES permit OH0143383, in force until Nov 30, 2026. Last 12 months: over a limit once (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (10 values)
Renewal application due: Jun 3, 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

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

Period ending	Parameter	Reported	Limit	Over by
February 2026	Solids, total dissolved- 180 deg. C, monthly average	2100	≤ 1900 mg/L	11%

Limits in force (10)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6.5 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	daily maximum	≤ .019 mg/L	all year
Solids, total dissolved- 180 deg. C	monthly average	≤ 1900 mg/L	all year
Trihalomethane, tot.	monthly average	report only (ug/L)	Sep
Trihalomethane, tot.	daily maximum	report only (ug/L)	Sep

How strict are these limits?

Chlorine, total residual, daily maximum .019 mg/L — stricter than 27% of 877 other minor industrial and other permits in Ohio; 72% have the same limit
Solids, total suspended, daily maximum 45 mg/L — stricter than 16% of 559 other minor industrial and other permits in Ohio; 66% have the same limit
Solids, total dissolved- 180 deg. C, monthly average 1900 mg/L — stricter than 12% of 55 other minor industrial and other permits in Ohio

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/OH0143383 · MCP: https://passage-data.com/mcp