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Watertown (C)

Sewage treatment plant, major discharger, Watertown, New York. NPDES permit NY0025984 expired Jan 31, 2016; its limits still apply. Last 12 months: over a limit 14 times (last April 2026), 2 required values missing, 3 of 42 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form A monthly (44 values), outfall 002 form Q quarterly (1 value), outfall 002 form X monthly (44 values), outfall 02B form Q quarterly (6 values), outfall 02C form Q quarterly (6 values), outfall 02D form Q quarterly (6 values), and 3 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 0 of 48 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
November 2025BOD, 5-day, 20 deg. C, 7-day average3455.02 lb/d≤ 3000 lb/d15%
November 2025Solids, total suspended, 7-day average4245.38 lb/d≤ 3000 lb/d42%
November 2025Solids, total suspended, monthly average2139.98 lb/d≤ 2000 lb/d7%
January 2026Solids, total suspended, 7-day average3336.65 lb/d≤ 3000 lb/d11%
March 2026BOD, 5-day, 20 deg. C, 7-day average5342.91 lb/d≤ 3000 lb/d78%
March 2026BOD, 5-day, 20 deg. C, monthly average3004.4 lb/d≤ 2000 lb/d50%
March 2026Flow, in conduit or thru treatment plant, monthly average11.3271≤ 8 MGD42%
March 2026Solids, total suspended, 7-day average6167.04 lb/d≤ 3000 lb/d106%
March 2026Solids, total suspended, monthly average3057.39 lb/d≤ 2000 lb/d53%
April 2026BOD, 5-day, 20 deg. C, 7-day average3546.78 lb/d≤ 3000 lb/d18%
April 2026BOD, 5-day, 20 deg. C, monthly average2170.43 lb/d≤ 2000 lb/d9%
April 2026Flow, in conduit or thru treatment plant, monthly average10.3821 MGD≤ 8 MGD30%
April 2026Solids, total suspended, 7-day average3773.03 lb/d≤ 3000 lb/d26%
April 2026Solids, total suspended, monthly average2325.24 lb/d≤ 2000 lb/d16%

Limits in force (124)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year002
Temperature, water deg. centigrademonthly averagereport only (deg C)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year002
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 2000 lb/dall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 2000 lb/dall year002
BOD, 5-day, 20 deg. C7-day average≤ 3000 lb/dall year002
BOD, 5-day, 20 deg. C7-day average≤ 3000 lb/dall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. C7-day averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. C7-day averagereport only (mg/L)all year002
pHminimum≥ 6 SUall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspended7-day average≤ 45 mg/Lall year002
Solids, total suspended7-day average≤ 45 mg/Lall year002
Solids, total suspendedmonthly average≤ 2000 lb/dall year002
Solids, total suspendedmonthly average≤ 2000 lb/dall year002
Solids, total suspended7-day average≤ 3000 lb/dall year002
Solids, total suspended7-day average≤ 3000 lb/dall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspended7-day averagereport only (mg/L)all year002
Solids, total suspended7-day averagereport only (mg/L)all year002
Solids, settleablemonthly averagereport only (mL/L)all year002
Solids, settleablemonthly averagereport only (mL/L)all year002
Solids, settleabledaily maximum≤ .3 mL/Lall year002
Solids, settleabledaily maximum≤ .3 mL/Lall year002
Solids, settleablemonthly averagereport only (mL/L)all year002
Solids, settleablemonthly averagereport only (mL/L)all year002
Solids, settleabledaily maximumreport only (mL/L)all year002
Solids, settleabledaily maximumreport only (mL/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year002
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly average≤ 8 MGDall year002
Flow, in conduit or thru treatment plantmonthly average≤ 8 MGDall year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualmonthly averagereport only (mg/L)Apr–Oct002
Chlorine, total residualmonthly averagereport only (mg/L)Apr–Oct002
Chlorine, total residualdaily maximum≤ .8 mg/LApr–Oct002
Chlorine, total residualdaily maximum≤ .8 mg/LApr–Oct002
Solids, total dissolveddaily averagereport only (mg/L)all year002
Solids, total dissolveddaily averagereport only (mg/L)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Solids, total dissolveddaily averagereport only (mg/L)all year002
Solids, total dissolveddaily averagereport only (mg/L)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year002
Coliform, fecal general30-day geometric mean≤ 200 #/100mLApr–Oct002
Coliform, fecal general30-day geometric mean≤ 200 #/100mLApr–Oct002
Coliform, fecal general7-day geometric mean≤ 400 #/100mLApr–Oct002
Coliform, fecal general7-day geometric mean≤ 400 #/100mLApr–Oct002
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year002
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year002
Solids, suspended percent removalmonthly average minimum≥ 85 %all year002
Solids, suspended percent removalmonthly average minimum≥ 85 %all year002
Ammonia & ammonium- totalmonthly averagereport only (mg/L)all year002
Ammonia & ammonium- totalmonthly averagereport only (mg/L)all year002
Ammonia & ammonium- totaldaily maximumreport only (mg/L)all year002
Ammonia & ammonium- totaldaily maximumreport only (mg/L)all year002
Ammonia & ammonium- totalmonthly averagereport only (mg/L)all year002
Ammonia & ammonium- totalmonthly averagereport only (mg/L)all year002
Ammonia & ammonium- totaldaily maximumreport only (mg/L)all year002
Ammonia & ammonium- totaldaily maximumreport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year02B
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year02B
pHminimum≥ 6 SUall year02B
pHmaximum≤ 9 SUall year02B
Solids, total suspendedmonthly averagereport only (mg/L)all year02B
Solids, total suspendeddaily maximum≤ 50 mg/Lall year02B
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year02C
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year02C
pHminimum≥ 6 SUall year02C
pHmaximum≤ 9 SUall year02C
Solids, total suspendedmonthly averagereport only (mg/L)all year02C
Solids, total suspendeddaily maximum≤ 50 mg/Lall year02C
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year02D
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year02D
pHminimum≥ 6 SUall year02D
pHmaximum≤ 9 SUall year02D
Solids, total suspendedmonthly averagereport only (mg/L)all year02D
Solids, total suspendeddaily maximum≤ 50 mg/Lall year02D
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year02X
Cyanide, free [amenable to chlorination]daily maximum≤ 3 lb/d (alert, not enforceable)all yearSUM
Cadmium, total [as Cd]daily maximum≤ 1 lb/d (alert, not enforceable)all yearSUM
Chromium, total [as Cr]daily maximum≤ 2 lb/d (alert, not enforceable)all yearSUM
Copper, total [as Cu]daily maximum≤ 2.6 lb/d (alert, not enforceable)all yearSUM
Zinc, total [as Zn]daily maximum≤ 5 lb/d (alert, not enforceable)all yearSUM
Aluminum, total [as Al]daily maximum≤ 60.3 lb/d (alert, not enforceable)all yearSUM
Phenolics, total recoverabledaily maximum≤ 6.3 lb/d (alert, not enforceable)all yearSUM
Methylene chloridedaily maximum≤ 1 lb/d (alert, not enforceable)all yearSUM
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 5.2 toxicall yearSUM
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 5.2 toxicall yearSUM
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 34 toxicall yearSUM
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 34 toxicall yearSUM
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 5.2 toxicall yearSUM
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 5.2 toxicall yearSUM
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 34 toxicall yearSUM
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 34 toxicall yearSUM

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/NY0025984 · MCP: https://passage-data.com/mcp