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Suffern (V)

Sewage treatment plant, major discharger, Suffern, New York. NPDES permit NY0022748 expired Feb 28, 2026; its limits still apply. Last 12 months: over a limit 23 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

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

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

All 23 values over a limit
Period endingParameterReportedLimitOver by
October 2025Copper, total [as Cu], daily maximum36 ug/L≤ 26 ug/L38%
November 2025Copper, total [as Cu], daily maximum42.8 ug/L≤ 26 ug/L65%
January 2026Nitrogen, ammonia total [as N], monthly average13.8 mg/L≤ 6.1 mg/L126%
February 2026Nitrogen, ammonia total [as N], monthly average12.6 mg/L≤ 6.1 mg/L107%
March 2026Coliform, fecal general, 7-day geometric mean2419 #/100mL≤ 400 #/100mL505%
March 2026Copper, total [as Cu], daily maximum34.3 ug/L≤ 26 ug/L32%
March 2026Solids, suspended percent removal, monthly average minimum83 %≥ 85 %13%
March 2026Solids, total suspended, monthly average30.2 mg/L≤ 30 mg/L1%
April 2026Coliform, fecal general, 7-day geometric mean2419.6 #/100mL≤ 400 #/100mL505%
April 2026Copper, total [as Cu], daily maximum48.5 ug/L≤ 26 ug/L87%
April 2026Solids, suspended percent removal, monthly average minimum76 %≥ 85 %60%
April 2026Solids, total suspended, 7-day average51.3 mg/L≤ 45 mg/L14%
April 2026Solids, total suspended, monthly average44.2 mg/L≤ 30 mg/L47%
May 2026Copper, total [as Cu], daily maximum53 ug/L≤ 26 ug/L104%
May 2026Solids, total suspended, monthly average33.2 mg/L≤ 30 mg/L11%
June 2026Coliform, fecal general, 7-day geometric mean866.4 #/100mL≤ 400 #/100mL117%
June 2026Copper, total [as Cu], daily maximum81.3 ug/L≤ 26 ug/L213%
June 2026Solids, total suspended, monthly average31.8 mg/L≤ 30 mg/L6%
July 2026BOD, carbonaceous [5 day, 20 C], daily maximum< 12 mg/L≤ 10 mg/L20%
July 2026Copper, total [as Cu], daily maximum71.7 ug/L≤ 26 ug/L176%
August 2026Coliform, fecal general, 7-day geometric mean2419 #/100mL≤ 400 #/100mL505%
August 2026Copper, total [as Cu], daily maximum61.1 ug/L≤ 26 ug/L135%
September 2026Copper, total [as Cu], daily maximum40.1 ug/L≤ 26 ug/L54%

Limits in force (43)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 61 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 450 lb/dall year
Solids, total suspended7-day average≤ 680 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspended7-day 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≤ 14 mL/Lall year
Solids, settleabledaily maximum≤ .3 mL/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 6.1 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Cyanide, free [amenable to chlorination]daily maximum≤ .4 lb/d (alert, not enforceable)all year
Copper, total [as Cu]daily maximum≤ 26 ug/Lall year
Copper, total [as Cu]daily maximum≤ 46 ug/Lall year
Copper, total [as Cu]daily maximum≤ .64 lb/d (alert, not enforceable)all year
Zinc, total [as Zn]daily maximum≤ 3.4 lb/d (alert, not enforceable)all year
Flow, in conduit or thru treatment plantmonthly average≤ 1.8 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ .03 mg/Lall year
Mercury, total [as Hg]daily maximum≤ 50 ng/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]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/LJun–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 37 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 380 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 150 lb/dJun–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 560 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)Jan, Feb, Mar, Apr, May, Nov, Dec
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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0022748 · MCP: https://passage-data.com/mcp