Killingly Water Pollution Control Fac.
31 Wauregan Rd., Danielson, CT 06239 · Windham County · Publicly Owned Treatment Works
- Average flow
- 3.4 MGD
- Design flow
- 8 MGD
- NPDES permit
- CT0101257
- Administratively continued
- Permit expires
- December 2022
- Population served
- 21,011
- CWNS 2022
Killingly Water Pollution Control Fac. is a publicly owned wastewater treatment works in Danielson, Windham County, Connecticut treating an average of 3.4 million gallons per day against a permitted design capacity of 8 MGD, serving about 21,011 residents. It discharges under NPDES permit CT0101257 (administratively continued), which expires in December 2022, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Killingly Water Pollution Control Fac..
Available with a free Klarifi account
See the full treatment train at Killingly Water Pollution Control Fac.: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Killingly Water Pollution Control Fac., with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Killingly Water Pollution Control Fac., plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Connecticut
Plainfield · 5 mi away
0.55 MGD
Putnam · 8 mi away
1.01 MGD
Plainfield · 9 mi away
0.36 MGD
Baltic · 16 mi away
—
Willimantic · 17 mi away
1.64 MGD
Storrs · 19 mi away
1.25 MGD
Stafford Springs · 24 mi away
0.76 MGD
Ledyard · 25 mi away
0.13 MGD
Killingly Water Pollution Control Fac.: 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 15, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms