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Dutchess County Water & Wastewater Authority

Sewage treatment plant, Hyde Park, New York. NPDES permit NY0034584, in force until Feb 28, 2031. Last 12 months: over a limit 9 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (18 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia, total [as NH3], daily maximum3.76 mg/L≤ 1.3 mg/L189%
February 2026BOD, carbonaceous [5 day, 20 C], daily maximum1.45 lb/d≤ 1.3 lb/d12%
February 2026BOD, carbonaceous [5 day, 20 C], daily maximum11.5 mg/L≤ 5 mg/L130%
February 2026Nitrogen, ammonia, total [as NH3], daily maximum8.74 mg/L≤ 1.3 mg/L572%
March 2026BOD, carbonaceous [5 day, 20 C], daily maximum1.94 lb/d≤ 1.3 lb/d49%
March 2026BOD, carbonaceous [5 day, 20 C], daily maximum13.1 mg/L≤ 5 mg/L162%
March 2026Nitrogen, ammonia, total [as NH3], daily maximum7.05 mg/L≤ 1.3 mg/L442%
April 2026BOD, carbonaceous [5 day, 20 C], daily maximum6.5 mg/L≤ 5 mg/L30%
June 2026Coliform, fecal general, 30-day geometric mean216 #/100mL≤ 200 #/100mL8%

Limits in force (19)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Flow ratemonthly average≤ 30000 gal/dall year
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendeddaily maximum≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 2.5 lb/dall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Nitrogen, ammonia, total [as NH3]daily maximum≤ .93 mg/LJun–Oct
Nitrogen, ammonia, total [as NH3]daily maximum≤ 1.3 mg/LJan, Feb, Mar, May, Nov, Dec
Chlorine, total residualdaily maximum≤ .02 mg/LJun–Oct
Coliform, fecal general30-day geometric mean≤ 200 #/100mLJun–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLJun–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1.3 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)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/NY0034584 · MCP: https://passage-data.com/mcp