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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Massachusetts

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124 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

124 results

CompareNameNative sizeYear
Oak Bluffs Sewerage Collection System and WWTFOak Bluffs0.375 MGD (million gallons per day)2022
Leicester Sewerage Collection System and WPCFLeicester0.35 MGD (million gallons per day)2022
Orleans Sewerage Collection System and WWTFOrleans0.35 MGD (million gallons per day)2022
Barre Sewerage Collection System and WWTFBarre0.3 MGD (million gallons per day)2022
Acton Sewerage Collection System and WWTFActon0.299 MGD (million gallons per day)2022
Northfield Sewerage Collection System and WWTFNorthfield0.275 MGD (million gallons per day)2022
Buckland/Shelburne Falls Sewerage Collection System and WWTFBuckland0.25 MGD (million gallons per day)2022
Russell Sewerage Collection System and WWTFRussell0.24 MGD (million gallons per day)2022
Hardwick Sewerage Collection System and WPCFHardwick0.23 MGD (million gallons per day)2022
Huntington Sewerage Collection System and WWTFHuntington0.2 MGD (million gallons per day)2022
Sutton Sewerage Collection System and WWTFSutton0.11 MGD (million gallons per day)2022
Tisbury Sewerage Collection System and WWTFVineyard Haven0.104 MGD (million gallons per day)2022
Hopkinton Sewerage Collection System and WWTFHopkinton0.1 MGD (million gallons per day)2022
Shirley Sewerage Collection System and WWTF (Devens)Shirley0.1 MGD (million gallons per day)2022
West Stockbridge Sewerage Collection System and WWTFWest Stockbridge0.076 MGD (million gallons per day)2022
Wayland High School Sewerage Collection System and WWTFWayland0.052 MGD (million gallons per day)2022
Easton Sewerage Collection System and WWTFNorth Easton0.05 MGD (million gallons per day)2022
Charlemont Sewer Collection System and WWTFCharlemont0.05 MGD (million gallons per day)2022
Royalston Sewerage Collection System and WWTFRoyalston0.039 MGD (million gallons per day)2022
Easton Public Schools Sewerage Collection System and WWTFNorth Easton0.031 MGD (million gallons per day)2022
Norfolk Sewerage Collection System and WWTFNorfolk0.03 MGD (million gallons per day)2022
Otis Sewerage Collection System and WWTFOtis0.03 MGD (million gallons per day)2022
Ashfield Sewerage Collection System and WWTFAshfield0.025 MGD (million gallons per day)2022
Monroe Sewerage Collection System and WWTFMonroe Bridge0.015 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.