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Rockland (T)

Sewage treatment plant, Rockland, New York. NPDES permit NY0034983, in force until Dec 31, 2030. Last 12 months: over a limit 30 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form M monthly (29 values), outfall GMW form 1 monthly (8 values), outfall GMW form 2 monthly (8 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 5 required values missing, 1 of 36 reports late

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

All 30 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average77 lb/d≤ 50 lb/d54%
October 2025Coliform, fecal general, 30-day geometric mean2419 #/100mL≤ 200 #/100mL1110%
October 2025Coliform, fecal general, 7-day geometric mean2419 #/100mL≤ 400 #/100mL505%
October 2025Nitrogen, Kjeldahl, total [as N], daily maximum62 mg/L≤ 20 mg/L210%
October 2025Oxygen, dissolved [DO], daily minimum3.2 mg/L≥ 7 mg/L54%
October 2025Solids, suspended percent removal, monthly average minimum66.6 %≥ 85 %123%
October 2025Solids, total dissolved, daily maximum2269 mg/L≤ 1000 mg/L127%
October 2025Solids, total suspended, 7-day average148 mg/L≤ 45 mg/L229%
October 2025Solids, total suspended, monthly average148 mg/L≤ 30 mg/L393%
November 2025Nitrogen, Kjeldahl, total [as N], daily maximum39 mg/L≤ 20 mg/L95%
November 2025Oxygen, dissolved [DO], daily minimum3.4 mg/L≥ 7 mg/L51%
November 2025Solids, suspended percent removal, monthly average minimum58.6 %≥ 85 %176%
November 2025Solids, total suspended, 7-day average115 mg/L≤ 45 mg/L156%
November 2025Solids, total suspended, monthly average115 mg/L≤ 30 mg/L283%
January 2026Nitrogen, Kjeldahl, total [as N], daily maximum23.8 mg/L≤ 20 mg/L19%
January 2026Oxygen, dissolved [DO], daily minimum5.2 mg/L≥ 7 mg/L26%
January 2026Solids, suspended percent removal, monthly average minimum75 %≥ 85 %67%
January 2026pH, maximum67 SU≤ 8.5 SU—
January 2026pH, minimum6.2 SU≥ 6.5 SU—
February 2026Oxygen, dissolved [DO], daily minimum6 mg/L≥ 7 mg/L14%
February 2026Solids, suspended percent removal, monthly average minimum72.6 %≥ 85 %83%
March 2026Oxygen, dissolved [DO], daily minimum6.7 mg/L≥ 7 mg/L4%
June 2026Coliform, fecal general, 30-day geometric mean2419 #/100mL≤ 200 #/100mL1110%
June 2026Coliform, fecal general, 7-day geometric mean2419 #/100mL≤ 400 #/100mL505%
June 2026Nitrogen, Kjeldahl, total [as N], daily maximum40.2 mg/L≤ 20 mg/L101%
June 2026Oxygen, dissolved [DO], daily minimum3.2 mg/L≥ 7 mg/L54%
June 2026Solids, suspended percent removal, monthly average minimum81.5 %≥ 85 %23%
June 2026Solids, total suspended, monthly average36.9 mg/L≤ 30 mg/L23%
August 2026Oxygen, dissolved [DO], daily minimum5 mg/L≥ 7 mg/L29%
September 2026Oxygen, dissolved [DO], daily minimum3.9 mg/L≥ 7 mg/L44%

Limits in force (45)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Oxygen, dissolved [DO]daily minimum≥ 7 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. Cmonthly average≤ 50 lb/dall year002
BOD, 5-day, 20 deg. C7-day average≤ 75 lb/dall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 8.5 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspended7-day average≤ 45 mg/Lall year002
Solids, total suspendedmonthly average≤ 50 lb/dall year002
Solids, total suspended7-day average≤ 75 lb/dall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendedmonthly averagereport only (lb/d)all year002
Solids, settleabledaily maximum≤ .3 mL/Lall year002
Nitrogen, Kjeldahl, total [as N]daily maximum≤ 20 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly average≤ .2 MGDall year002
Chlorine, total residualmonthly averagereport only (mg/L)May–Oct002
Chlorine, total residualdaily maximum≤ 2 mg/LMay–Oct002
Chlorine, total residualmonthly averagereport only (lb/d)May–Oct002
Chlorine, total residualdaily maximum≤ 3.3 lb/dMay–Oct002
Nitrite Plus Nitrate Totaldaily maximumreport only (mg/L)all year002
Solids, total dissolveddaily maximum≤ 1000 mg/Lall year002
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct002
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct002
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year002
Solids, suspended percent removalmonthly average minimum≥ 85 %all year002
pHminimumreport only (SU)all yearGMW
pHminimumreport only (SU)all yearGMW
pHmaximumreport only (SU)all yearGMW
pHmaximumreport only (SU)all yearGMW
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, nitrate total [as N]daily maximum≤ 10 mg/Lall yearGMW
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all yearGMW
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all yearGMW
Solids, total dissolveddaily maximumreport only (mg/L)all yearGMW
Solids, total dissolveddaily maximumreport only (mg/L)all yearGMW
Coliform, fecal generalgeometric meanreport only (#/100mL)all yearGMW
Coliform, fecal generalgeometric meanreport only (#/100mL)all yearGMW

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/NY0034983 · MCP: https://passage-data.com/mcp