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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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119 inventory records · HydroWASTE v1.0 / United States

Data years: 2012. The inventory date does not establish current operation.

119 results

CompareNameNative sizeYear
Mass Water Resources AuthorityHW:307511,693,303 population served2012
Greater Lawrence Sanitary DistrictHW:30717362,545 population served2012
South Essex Sewer District WWTPHW:30697286,007 population served2012
Springfield Wastewater SystemHW:30722235,804 population served2012
Upper Blackstone Abatement DistrictHW:30709207,535 population served2012
Lynn Water and Sewer CommissionHW:30695163,820 population served2012
Lowell Regional Wastewater UtilityHW:30737149,596 population served2012
Charles River WPCFHW:30795128,874 population served2012
Brockton Deptof Public WorksHW:30708126,256 population served2012
New Bedford Wastewater DistrictHW:30720108,829 population served2012
Fall River Public Works DepartmentHW:3074592,659 population served2012
Hull Collection SystemHW:3073975,428 population served2012
Pittsfield Dept of Public WorksHW:3072167,601 population served2012
Nantucket Wastewater SystHW:3077967,036 population served2012
Chicopee Water Pollution ControlHW:3072861,707 population served2012
Gloucester City Engineer s OfficeHW:3073652,826 population served2012
Fitchburg Wastewater SystemHW:3071851,943 population served2012
Holyoke Collection SystemHW:3072947,773 population served2012
Haverhill Sewer Collection SystemHW:3071943,792 population served2012
Attleboro Water and Wastewater DivHW:3073443,368 population served2012
Westborough Wastewater SystemHW:3078838,379 population served2012
Leominster Dept of Public WorksHW:3075037,000 population served2012
Westfield Dept of Public WorksHW:3070135,728 population served2012
Northampton Dept of Public WorksHW:3073833,133 population served2012
Taunton Dept of Public WorksHW:3074631,106 population served2012
Amherst Dept of Public WorksHW:3072430,783 population served2012
Billerica Dept of Public WorksHW:3071027,000 population served2012
Hoosac Water Pollution ControlHW:3069625,485 population served2012
Bridgewater Sewer DepartmentHW:3079624,596 population served2012
Gardner Dept of Public WorksHW:3073522,244 population served2012
Salibury Dept of Public WorksHW:3078020,944 population served2012
Webster Sewer DepartmentHW:3071519,708 population served2012
Palmer Water Pollution ControlHW:3073219,294 population served2012
South Hadley Dept of Public WorksHW:3073318,284 population served2012
Milford Dept of Public WorksHW:3074417,914 population served2012
Newburyport WPCFHW:3075216,866 population served2012
Greenfield Wastewater FacilityHW:3070316,736 population served2012
Marlborough Easterly WWTFHW:3069915,923 population served2012
Southbridge Dept of Public WorksHW:3071314,928 population served2012
Easthampton Dept of Public WorksHW:3073114,767 population served2012
Amesbury Dept of Public WorksHW:3074814,520 population served2012
Fairhaven DPW Wastewater DeptHW:3071114,135 population served2012
Barnstable Dept of Public WorksHW:3074013,596 population served2012
Plymouth Department of Public WorksHW:3070513,269 population served2012
Somerset Water Pollution ControlHW:3071212,902 population served2012
Dartmouth Dept of Public WorksHW:3071612,848 population served2012
Athol Dept of Public WorksHW:3073011,601 population served2012
MWRA clintonHW:3072511,563 population served2012
Provincetown Dept of Public WorksHW:3078511,496 population served2012
North Attleborough WWTFHW:3074311,146 population served2012
Rockland Sewer DeptHW:3070610,946 population served2012
Marshfield Dept of Public WorksHW:3074710,943 population served2012
Leicester Board of HealthHW:3078610,471 population served2012
Maynard Department of Public WorksHW:307879,453 population served2012
Lenox Dept of Public WorksHW:308119,352 population served2012
Hudson Dept of Public WorksHW:307419,299 population served2012
Sturbridge Wastewater SystemHW:307588,883 population served2012
Scituate Dept of Public WorksHW:307078,273 population served2012
Adams Dept of Public WorksHW:307238,031 population served2012
Grafton Wastewater SystemHW:307267,987 population served2012
Kingston Sewer CommissionHW:308087,800 population served2012
Northbridge Dept of Public WorksHW:307277,470 population served2012
Great Barrington Public WorksHW:307627,383 population served2012
Ayer Water Pollution ControlHW:307716,857 population served2012
Mansfield Department of Public WorkHW:308026,751 population served2012
Rockport Dept of Public WorksHW:307566,500 population served2012
Chatham Water and Sewer CommissionHW:307776,452 population served2012
Marlborough Westerly WWTPHW:307006,321 population served2012
Belchertown Sewer DeptHW:308046,289 population served2012
Hopedale Deptof Public WorksHW:307836,226 population served2012
Montague Wastewater SystemHW:307896,051 population served2012
Wareham Water Pollution Ctrl FacHW:307146,030 population served2012
Ware Dept of Public WorksHW:307545,970 population served2012
Spencer Dept of Public WorksHW:307945,970 population served2012
Concord Dept of Public WorksHW:307025,439 population served2012
Uxbridge Wastewater SystemHW:307825,400 population served2012
Middleborough Wastewater SystemHW:307425,174 population served2012
Tisbury Dept of Public WorksHW:308074,860 population served2012
Ipswich Dept of Public WorksHW:307044,576 population served2012
Medfield Sewer CommissionHW:307844,275 population served2012
Cohasset Dept of Public WorksHW:307673,900 population served2012
Pepperell Dept of Public WorksHW:307533,880 population served2012
Orange Dept of Public WorksHW:307743,800 population served2012
Lee Dept of Public WorksHW:307643,483 population served2012
North Brookfield WWTPHW:307653,396 population served2012
Deerfield Dept of Public WorksHW:307573,184 population served2012
Barre Board of Sewer CommissionersHW:307683,000 population served2012
Hardwick WPCFHW:307922,990 population served2012
Winchedon Dept of Public WorksHW:307552,625 population served2012
Sunderland Collection SystemHW:307662,615 population served2012
Manchester Dept of Public WorksHW:307782,487 population served2012
Templeton Dept of Public WorksHW:308032,298 population served2012
Stockbridge Dept of Public WorksHW:307812,125 population served2012
Merrimac Dept of Public WorksHW:307732,074 population served2012
Buckland Shelburne Falls WPCFHW:307761,981 population served2012
Acton Wastewater Collection SystemHW:306981,971 population served2012
Marion Dept of Public WorksHW:307721,969 population served2012
Northfield Dept of Public WorksHW:307591,870 population served2012
Russell Dept of Public WorksHW:307701,769 population served2012
Warren Dept of Public WorksHW:308051,691 population served2012

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.