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Clayton (T)

Sewage treatment plant, Depauville, New York. NPDES permit NY0215791, in force until Feb 28, 2030. Last 12 months: over a limit 2 times (last August 2026), 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (11 values), form Q quarterly (8 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 2 required values missing, 1 of 16 reports late

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

Period endingParameterReportedLimitOver by
March 2026Flow, in conduit or thru treatment plant, monthly average.043 MGD≤ .034 MGD26%
August 2026Solids, settleable, daily maximum≤ .6 mL/L≤ .1 mL/L500%

Limits in force (20)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 4.3 lb/dall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 8.5 SUall year
pHdaily minimumreport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspendeddaily maximum≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 4.3 lb/dall year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Solids, settleabledaily maximumreport only (mL/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .034 MGDall year
Solids, total dissolveddaily maximum≤ 2230 mg/Lall year
Solids, total dissolveddaily maximumreport only (lb/d)all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

New limits from May 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, daily maximum30 ug/L (May–Oct)new——
Coliform, fecal general, 30-day average200 #/100mL (May–Oct)new——
Coliform, fecal general, 7-day average400 #/100mL (May–Oct)new——

How strict are these limits?

Cited limits by parameter: New York's rules and the federal ones.

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/NY0215791 · MCP: https://passage-data.com/mcp