Manchester Wastewater Treatment Facility
Manchester, MA · Essex County · Publicly Owned Treatment Works
- Average flow
- 0.29 MGD
- Design flow
- —
- NPDES permit
- MAG580043
- Effective
- Permit expires
- November 2026
- Population served
- 3,418
- CWNS 2022
Manchester Wastewater Treatment Facility is a publicly owned wastewater treatment works in Manchester, Essex County, Massachusetts treating an average of 0.29 million gallons per day, serving about 3,418 residents. Treatment on site includes clarifiers, biosolids mechanical dewatering, disinfection, chlorine/ chloramine, flotation, screening and other unit processes. It discharges under NPDES permit MAG580043 (effective), which expires in November 2026, with 33 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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Biosolids Mechanical Dewatering
unit processDisinfection, chlorine/ chloramine
unit processFlotation
unit processScreening
unit processSuspended Growth, Aerobic
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Compliance snapshot (last 3 years)
- Total violations
- 33
- Effluent violations
- 33
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Manchester 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 Manchester Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Massachusetts
Salem · 6 mi away
17.57 MGD
Ipswich · 9 mi away
0.5 MGD
Newburyport · 17 mi away
1.45 MGD
Winthrop · 18 mi away
233.7 MGD
Salisbury · 19 mi away
0.59 MGD
Haverhill · 20 mi away
6.58 MGD
Hull · 20 mi away
1.03 MGD
North Andover · 21 mi away
21.7 MGD
Manchester 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 8, 2025.