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Rockland County SD#1 STP

Sewage treatment plant, major discharger, Orangeburg, New York. NPDES permit NY0031895, in force until Jun 30, 2028. Last 12 months: over a limit 15 times (last May 2026), 4 required values missing, 1 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (43 values), outfall 001 form W quarterly (4 values), outfall 001 form L quarterly, outfall 002 form A yearly, outfall 003 form A yearly, outfall 004 form A yearly, and 8 more forms
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
12 values over a limit, 24 required values missing, 0 of 30 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
January 2026BOD, carbonaceous [5 day, 20 C], monthly average32 mg/L≤ 25 mg/L28%
January 2026Carbonaceous oxygen demand, % removal, monthly average minimum84 %≥ 85 %7%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average33 mg/L≤ 25 mg/L32%
February 2026Carbonaceous oxygen demand, % removal, monthly average minimum82 %≥ 85 %20%
February 2026Solids, total suspended, monthly average31 mg/L≤ 30 mg/L3%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average27 mg/L≤ 25 mg/L8%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average6776 lb/d≤ 6000 lb/d13%
March 2026Carbonaceous oxygen demand, % removal, monthly average minimum79 %≥ 85 %40%
March 2026Flow, in conduit or thru treatment plant, monthly average29.7 MGD≤ 29 MGD2%
March 2026Solids, suspended percent removal, monthly average minimum83 %≥ 85 %13%
March 2026Solids, total suspended, monthly average7583 lb/d≤ 7200 lb/d5%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average27 mg/L≤ 25 mg/L8%
April 2026Carbonaceous oxygen demand, % removal, monthly average minimum80 %≥ 85 %33%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average28 mg/L≤ 25 mg/L12%
May 2026Carbonaceous oxygen demand, % removal, monthly average minimum84 %≥ 85 %7%

Limits in force (77)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 7200 lb/dall year001
Solids, total suspended7-day average≤ 11000 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Nitrogen, ammonia total [as N]daily average≤ 5.9 mg/LJun–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJan, Feb, Mar, Apr, May, Nov, Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jun–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1400 lb/dJun–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 2900 lb/dJan, Feb, Mar, Apr, May, Nov, Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Copper, total [as Cu]daily maximumreport only (ug/L) (alert, not enforceable)all year001
Copper, total [as Cu]daily maximum≤ 8.1 lb/d (alert, not enforceable)all year001
Lead, total [as Pb]daily maximumreport only (ug/L) (alert, not enforceable)all year001
Lead, total [as Pb]daily maximum≤ .5 lb/d (alert, not enforceable)all year001
Zinc, total [as Zn]daily maximumreport only (ug/L) (alert, not enforceable)all year001
Zinc, total [as Zn]daily maximum≤ 23 lb/d (alert, not enforceable)all year001
Total phenolsdaily maximumreport only (ug/L) (alert, not enforceable)all year001
Total phenolsdaily maximum≤ 4 lb/d (alert, not enforceable)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 29 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly averagereport only (mg/L)May–Oct001
Chlorine, total residualdaily maximum≤ .12 mg/LMay–Oct001
Chlorine, total residualdaily maximum≤ .5 mg/LMay–Oct001
Chlorine, total residualmonthly averagereport only (lb/d)May–Oct001
Chlorine, total residualdaily maximum≤ 29 lb/dMay–Oct001
Mercury, total [as Hg]rolling average≤ 20 ng/LMar, Jun, Sep, Dec001
Mercury, total [as Hg]daily maximum≤ 50 ng/LMar, Jun, Sep, Dec001
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6000 lb/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 9600 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year001
TU Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)maximum≤ 2.2 tox acuteall year001
TU 48Hr Acute Cyprinodon variegatusmaximum≤ 2.2 tox acuteall year001
TU Static Renewal Chronic Cyprinodeon variegatusmaximum≤ 16 tox chronic (alert, not enforceable)all year001
TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)maximum≤ 16 tox chronic (alert, not enforceable)all year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year002
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year003
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year004
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year005
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year006
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year007
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year008
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year009
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year010
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year011
Oxygen demand, chem. [high level] [COD]daily maximum≤ 120 mg/L (alert, not enforceable)all year012

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/NY0031895 · MCP: https://passage-data.com/mcp