Portland Water Pollution Control Facility
Portland, CT · Middlesex County · Publicly Owned Treatment Works
- Average flow
- 0.24 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- CT0101150
- Effective
- Permit expires
- October 2028
- Population served
- 9,462
- CWNS 2022
Portland Water Pollution Control Facility is a publicly owned wastewater treatment works in Portland, Middlesex County, Connecticut treating an average of 0.24 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 9,462 residents. Treatment on site includes clarifiers. It discharges under NPDES permit CT0101150 (effective), which expires in October 2028, with 6 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
- 6
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
8 verified contacts for Portland Water Pollution Control Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Portland Water Pollution Control Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Connecticut
East Hampton · 5 mi away
1.04 MGD
Glastonbury · 10 mi away
2.17 MGD
Meriden · 10 mi away
6.49 MGD
Cheshire · 12 mi away
1.85 MGD
Southington (plantsville) · 12 mi away
3.67 MGD
East Haddam · 13 mi away
0.01 MGD
Manchester · 15 mi away
4.89 MGD
Deep River · 16 mi away
0.18 MGD
Portland Water Pollution Control 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 February 16, 2025.