Greenfields Sewer System-Part County Sd#8
Hyde Park, NY · Dutchess County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.13 MGD
- NPDES permit
- NY0097896
- Effective
- Permit expires
- November 2026
- Population served
- 727
- CWNS 2022
Greenfields Sewer System-Part County Sd#8 is a publicly owned wastewater treatment works in Hyde Park, Dutchess County, New York treating an average of 0.05 million gallons per day against a permitted design capacity of 0.13 MGD, serving about 727 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit NY0097896 (effective), which expires in November 2026, with 9 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Greenfields Sewer System-Part County Sd#8.
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0.000000021 MGD
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Rhinebeck · 8 mi away
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Poughkeepsie · 8 mi away
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New Paltz · 9 mi away
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Millbrook · 9 mi away
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Greenfields Sewer System-Part County Sd#8: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated November 14, 2025.