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Amsterdam (C)

Sewage treatment plant, major discharger, Amsterdam, New York. NPDES permit NY0020290 expired Feb 28, 2021; its limits still apply. Last 12 months: over a limit 21 times (last August 2026), 4 of 17 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (34 values), form Q quarterly (2 values), form V quarterly (6 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
14 values over a limit, 0 required values missing, 1 of 20 reports late

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

All 21 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, settleable, daily maximum.7 mL/L≤ .3 mL/L133%
November 2025BOD, 5-day, 20 deg. C, monthly average34 mg/L≤ 30 mg/L13%
November 2025BOD, 5-day, percent removal, monthly average minimum81 %≥ 85 %27%
December 2025BOD, 5-day, 20 deg. C, 7-day average54 mg/L≤ 45 mg/L20%
December 2025BOD, 5-day, 20 deg. C, monthly average41 mg/L≤ 30 mg/L37%
December 2025BOD, 5-day, percent removal, monthly average minimum66 %≥ 85 %127%
January 2026BOD, 5-day, 20 deg. C, monthly average35 mg/L≤ 30 mg/L17%
January 2026BOD, 5-day, percent removal, monthly average minimum63 %≥ 85 %147%
January 2026Solids, settleable, daily maximum.6 mL/L≤ .3 mL/L100%
February 2026BOD, 5-day, percent removal, monthly average minimum63 %≥ 85 %147%
March 2026BOD, 5-day, 20 deg. C, monthly average2919 lb/d≤ 2500 lb/d17%
March 2026BOD, 5-day, 20 deg. C, monthly average33 mg/L≤ 30 mg/L10%
March 2026BOD, 5-day, percent removal, monthly average minimum48 %≥ 85 %247%
March 2026Solids, settleable, daily maximum2 mL/L≤ .3 mL/L567%
March 2026Solids, suspended percent removal, monthly average minimum54 %≥ 85 %207%
March 2026Solids, total suspended, monthly average39 mg/L≤ 30 mg/L30%
March 2026Solids, total suspended, monthly average4139 lb/d≤ 2500 lb/d66%
April 2026BOD, 5-day, percent removal, monthly average minimum79 %≥ 85 %40%
April 2026Solids, settleable, daily maximum7.5 mL/L≤ .3 mL/L2400%
May 2026Solids, settleable, daily maximum1.3 mL/L≤ .3 mL/L333%
August 2026Solids, settleable, daily maximum.8 mL/L≤ .3 mL/L167%

Limits in force (52)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 2500 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 3800 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. C7-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. C7-day averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2500 lb/dall year
Solids, total suspended7-day average≤ 3800 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspended7-day averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspended7-day averagereport only (lb/d)all year
Solids, settleabledaily maximum≤ .3 mL/Lall year
Solids, settleabledaily maximumreport only (mL/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Copper, total [as Cu]daily maximumreport only (mg/L) (alert, not enforceable)all year
Copper, total [as Cu]daily maximum≤ 1.8 lb/d (alert, not enforceable)all year
Zinc, total [as Zn]daily maximumreport only (mg/L) (alert, not enforceable)all year
Zinc, total [as Zn]daily maximum≤ 6.2 lb/d (alert, not enforceable)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (lb/d)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (lb/d)all year
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (mg/L) (alert, not enforceable)all year
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 4.5 lb/d (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmonthly average≤ 10 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly averagereport only (mg/L)May–Oct
Chlorine, total residualdaily maximum≤ 1.3 mg/LMay–Oct
Chlorine, total residualmonthly averagereport only (lb/d)May–Oct
Chlorine, total residualdaily maximum≤ 110 lb/dMay–Oct
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year
Mercury, total [as Hg]daily maximumreport only (g/d)all year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0020290 · MCP: https://passage-data.com/mcp