Napanoch Sewer Imp Area
Napanoch, NY 12458 · Ulster County · Publicly Owned Treatment Works
- Average flow
- 0.42 MGD
- Design flow
- 0.53 MGD
- NPDES permit
- NY0029718
- Effective
- Permit expires
- February 2027
- Population served
- 3,792
- CWNS 2022
Napanoch Sewer Imp Area is a publicly owned wastewater treatment works in Napanoch, Ulster County, New York treating an average of 0.42 million gallons per day against a permitted design capacity of 0.53 MGD, serving about 3,792 residents. It discharges under NPDES permit NY0029718 (effective), which expires in February 2027, with 4 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Napanoch Sewer Imp Area.
Available with a free Klarifi account
See the full treatment train at Napanoch Sewer Imp Area: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Napanoch Sewer Imp Area, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Napanoch Sewer Imp Area, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Ellenville · 2 mi away
0.36 MGD
Ellenville · 3 mi away
0.03 MGD
Pine Bush · 9 mi away
0.15 MGD
Gardiner · 11 mi away
0.06 MGD
Grahamsville · 11 mi away
0.08 MGD
Woodridge · 13 mi away
0.51 MGD
South Fallsburg · 13 mi away
1.66 MGD
New Paltz · 14 mi away
0.8 MGD
Napanoch Sewer Imp Area: 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 October 26, 2026; facility record last updated September 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms