Quonset Point Wastewater Treatment Facility
North Kingstown, RI · Washington County · Publicly Owned Treatment Works
- Average flow
- 0.41 MGD
- Design flow
- 1.78 MGD
- NPDES permit
- RI0100404
- Effective
- Permit expires
- December 2030
- Population served
- 11,593
- CWNS 2022
Quonset Point Wastewater Treatment Facility is a publicly owned wastewater treatment works in North Kingstown, Washington County, Rhode Island treating an average of 0.41 million gallons per day against a permitted design capacity of 1.78 MGD, serving about 11,593 residents. Treatment on site includes clarifiers. It discharges under NPDES permit RI0100404 (effective), which expires in December 2030, with 74 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 74
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Quonset Point Wastewater Treatment Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Quonset Point Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Rhode Island
East Greenwich · 5 mi away
0.63 MGD
Jamestown · 6 mi away
0.1 MGD
Newport · 7 mi away
5.3 MGD
Bristol · 9 mi away
2.14 MGD
Warren · 11 mi away
1.19 MGD
Cranston · 11 mi away
5.3 MGD
East Providence · 13 mi away
4.4 MGD
Narragansett · 15 mi away
0.39 MGD
Quonset Point Wastewater Treatment Facility: 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 26, 2025.