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Tivoli (V)

Sewage treatment plant, Tivoli, New York. NPDES permit NY0022098, in force until Mar 31, 2029. Last 12 months: over a limit 12 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (22 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
16 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily maximum8.3 mg/L≤ 5 mg/L66%
October 2025Phosphorus, total [as P], monthly average7.2 mg/L≤ 2 mg/L260%
December 2025Nitrogen, ammonia total [as N], monthly average24.1 mg/L≤ 1.8 mg/L1239%
January 2026BOD, carbonaceous [5 day, 20 C], daily maximum5.5 mg/L≤ 5 mg/L10%
January 2026Nitrogen, ammonia total [as N], monthly average2.9 mg/L≤ 1.8 mg/L61%
March 2026BOD, carbonaceous [5 day, 20 C], daily maximum7.5 mg/L≤ 5 mg/L50%
March 2026Nitrogen, ammonia total [as N], monthly average2.54 mg/L≤ 1.8 mg/L41%
March 2026Solids, suspended percent removal, monthly average minimum81 %≥ 85 %27%
May 2026Nitrogen, ammonia total [as N], monthly average1.31 mg/L≤ .9 mg/L46%
June 2026Nitrogen, ammonia total [as N], monthly average.98 mg/L≤ .9 mg/L9%
June 2026Phosphorus, total [as P], monthly average2.19 mg/L≤ 2 mg/L10%
August 2026BOD, carbonaceous [5 day, 20 C], daily maximum5.5 mg/L≤ 5 mg/L10%

Limits in force (23)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 70 deg Fall year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendeddaily maximum≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 8.3 lb/dall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Nitrogen, ammonia total [as N]monthly average≤ .9 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Copper, total [as Cu]daily maximum≤ 50 ug/L (alert, not enforceable)all year
Chloroformdaily maximum≤ 10 ug/L (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmonthly average≤ .1 MGDall year
Chlorine, total residualdaily maximum≤ .1 mg/Lall year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year

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/NY0022098 · MCP: https://passage-data.com/mcp