Leicester Water Supply WWTF
Leicester, MA · Worcester County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- —
- NPDES permit
- MAG580027
- Effective
- Permit expires
- November 2026
- Population served
- 3,183
- CWNS 2022
Leicester Water Supply WWTF is a publicly owned wastewater treatment works in Leicester, Worcester County, Massachusetts treating an average of 0.09 million gallons per day, serving about 3,183 residents. Treatment on site includes clarifiers, aerated lagoons, biological n removal, biological p removal, biosolids mechanical dewatering and other unit processes. It discharges under NPDES permit MAG580027 (effective), which expires in November 2026, with 5 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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Aerated lagoons
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Biological N removal
unit processBiological P removal
unit processBiosolids Mechanical Dewatering
unit processChemical Addition, Ferric Chloride
unit processChemical N Removal
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processFiltration
unit processScreening
unit processSuspended Growth, Aerobic
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Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Leicester Water Supply WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Leicester Water Supply WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Massachusetts
North Oxford · 4 mi away
0.17 MGD
Spencer · 5 mi away
0.44 MGD
Millbury · 7 mi away
24.1 MGD
Charlton · 8 mi away
0.31 MGD
North Brookfield · 8 mi away
0.29 MGD
Hardwick · 14 mi away
0.01 MGD
Westborough · 15 mi away
4.17 MGD
East Douglas · 16 mi away
0.13 MGD
Leicester Water Supply 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 September 11, 2026; facility record last updated November 28, 2025.