Warren WWTF
427 Water St, Warren, RI 02885 · Bristol County · Publicly Owned Treatment Works
- Average flow
- 1.78 MGD
- Design flow
- 3.43 MGD
- NPDES permit
- RI0100056
- Effective
- Permit expires
- December 2030
- Population served
- 8,000
- CWNS 2022
Warren WWTF is a publicly owned wastewater treatment works in Warren, Bristol County, Rhode Island treating an average of 1.78 million gallons per day against a permitted design capacity of 3.43 MGD, serving about 8,000 residents. It discharges under NPDES permit RI0100056 (effective), which expires in December 2030, with 56 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Warren WWTF.
Available with a free Klarifi account
See the full treatment train at Warren WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 56
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
17 verified contacts for Warren WWTF, with validated emails and direct phone numbers.
Unlock 17 verified contacts (14 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Warren WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Rhode Island
Bristol · 5 mi away
3.17 MGD
East Providence · 5 mi away
5.45 MGD
Cranston · 8 mi away
7.48 MGD
East Greenwich · 10 mi away
0.82 MGD
East Providence (rumford) · 10 mi away
17.77 MGD
North Kingstown · 11 mi away
0.6 MGD
Newport · 15 mi away
7.15 MGD
Smithfield · 15 mi away
1.64 MGD
Warren WWTF: 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 May 25, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms