U.S. water systems

Massachusetts Water Systems

Massachusetts

803 community water systems on record — 527 active, 276 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Massachusetts’s official records. Always confirm current status with Massachusetts before making decisions based on this information.

Counties in Massachusetts

Barnstable County (62)Berkshire County (71)Bristol County (44)Dukes County (9)Essex County (58)Franklin County (37)Hampden County (36)Hampshire County (38)Middlesex County (146)Nantucket County (2)Norfolk County (49)Plymouth County (74)Suffolk County (6)Worcester County (159)

All community water systems in Massachusetts

System name	Mailing city	Population served	Status
MWRA	CHELSEA	2,580,000	Active
BOSTON WATER AND SEWER COMMISSION (MWRA)	BOSTON	675,647	Active
WORCESTER DPWP, WATER SUPPLY DIVISION	WORCESTER	206,518	Active
SPRINGFIELD WATER AND SEWER COMMISSION	SPRINGFIELD	169,170	Active
LOWELL REGIONAL WATER UTILITY	LOWELL	120,418	Active
CAMBRIDGE WATER DEPARTMENT	CAMBRIDGE	118,214	Active
QUINCY WATER DEPT. (MWRA)	QUINCY	106,000	Active
BROCKTON WATER DEPARTMENT	BROCKTON	105,788	Active
INIMA USA / AQUARIA LLC	NORTH DIGHTON	105,643	Active
LYNN WATER AND SEWER COMM	LYNN	101,253	Active
CITY OF NEW BEDFORD DPI	NEW BEDFORD	101,079	Active
FALMOUTH WATER DEPT	FALMOUTH	97,551	Active
FALL RIVER WATER DEPARTMENT	FALL RIVER	94,000	Active
SALEM AND BEVERLY WATER SUPPLY BOARD	BEVERLY	90,330	Active
LAWRENCE WATER WORKS	LAWRENCE	89,143	Active
NEWTON WATER DEPT. (MWRA)	NEWTON	88,931	Active
SOMERVILLE WATER DEPT. (MWRA)	SOMERVILLE	81,045	Active
FRAMINGHAM WATER DEPT. (MWRA)	FRAMINGHAM	72,362	Active
MALDEN WATER DIVISION (MWRA)	MALDEN	66,263	Active
WALTHAM WATER DEPARTMENT	WALTHAM	65,218	Active
DENNIS WATER DISTRICT	SOUTH DENNIS	65,000	Active
BROOKLINE WATER AND SEWER DIVISION	BROOKLINE	63,191	Active
REVERE WATER DIVISION (MWRA)	REVERE	62,186	Active
TAUNTON WATER DIVISION	TAUNTON	62,165	Active
MEDFORD WATER DEPT. (MWRA)	MEDFORD	61,700	Active
HAVERHILL WATER DEPT	HAVERHILL	61,277	Active
WEYMOUTH WATER DEPARTMENT	WEYMOUTH	57,871	Active
UPPER CAPE REGIONAL WATER COOPERATIVE	SANDWICH	56,250	Active
CHICOPEE WATER DEPT (MWRA)	CHICOPEE	55,560	Active
PEABODY WATER DEPT.	WEST PEABODY	54,481	Active
METHUEN WATER DEPT	METHUEN	53,059	Active
CENTERVILLE OSTERVILLE MARSTONS MILLS WD	OSTERVILLE	50,000	Active
EVERETT WATER DEPT. (MWRA)	EVERETT	49,075	Active
BEVERLY WATER DEPT	BEVERLY	47,461	Active
PLYMOUTH WATER DEPARTMENT	PLYMOUTH	47,100	Active
RANDOLPH/HOLBROOK JOINT WATER BOARD	HOLBROOK	46,519	Active
ATTLEBORO WATER DEPT	ATTLEBORO	46,461	Active
ARLINGTON WATER DEPT. (MWRA)	ARLINGTON	46,308	Active
WEIR RIVER WATER SYSTEM	HINGHAM	45,339	Active
SALEM WATER DEPARTMENT	SALEM	44,480	Active
PITTSFIELD DPU WATER DEPT	PITTSFIELD	43,927	Active
BILLERICA WATER WORKS	BILLERICA	42,119	Active
FITCHBURG DPW DIVISION OF WATER SUPPLY	FITCHBURG	41,946	Active
MARLBOROUGH DPW WATER DIV. (MWRA)	MARLBOROUGH	41,799	Active
LEOMINSTER WATER DIVISION	LEOMINSTER	41,683	Active
DEDHAM WESTWOOD WATER DIST.	DEDHAM	41,630	Active
WESTFIELD DPWWATER DIVISION	WESTFIELD	41,094	Active
WOBURN WATER DEPT.	WOBURN	40,876	Active
CHELSEA WATER DEPT. (MWRA)	CHELSEA	40,787	Active
AMHERST DPW WATER DIVISION	AMHERST	39,263	Active
HARWICH WATER DEPARTMENT	HARWICH	39,144	Active
BRAINTREE WATER AND SEWER DEPT.	BRAINTREE	39,143	Active
YARMOUTH WATER DEPARTMENT	WEST YARMOUTH	38,900	Active
SHREWSBURY WATER DEPARTMENT	SHREWSBURY	38,325	Active
HOLYOKE WATER WORKS	HOLYOKE	37,838	Active
GLOUCESTER PUBLIC UTILITY DIVISION	GLOUCESTER	37,440	Active
NATICK WATER AND SEWER DIVISION	NATICK	37,006	Active
MASHPEE WATER DISTRICT	MASHPEE	36,922	Active
ANDOVER WATER DEPT	ANDOVER	36,569	Active
WATERTOWN DEPARTMENT OF PUBLIC WORKS	WATERTOWN	35,985	Active
RANDOLPH WATER DEPARTMENT	RANDOLPH	35,114	Active
BREWSTER WATER DEPARTMENT	BREWSTER	35,000	Active
HYANNIS WATER SYSTEM, TOWN OF BARNSTABLE	HYANNIS	35,000	Active
LEXINGTON WATER DEPT. (MWRA)	LEXINGTON	34,074	Active
MARSHFIELD WATER DEPARTMENT	MARSHFIELD	34,000	Active
FRANKLIN WATER DEPARTMENT	FRANKLIN	33,706	Active
ABINGTON/ROCKLAND JOINT WTR. WORKS	ROCKLAND	33,387	Active
ATTLEBORO WATER DEPT	ATTLEBORO	33,000	Inactive
NEEDHAM WATER DEPT	NEEDHAM	31,664	Active
NORTH ATTLEBORO WATER DEPT	NORTH ATTLEBOROUGH	31,410	Active
TEWKSBURY WATER DEPARTMENT	TEWKSBURY	31,342	Active
NORTH ANDOVER WATER DEPT	NORTH ANDOVER	30,915	Active
MILFORD WATER DEPARTMENT	MILFORD	30,379	Active
CHATHAM WATER DEPARTMENT	CHATHAM	30,000	Active
MELROSE WATER DIVISION (MWRA)	MELROSE	29,938	Active
NORWOOD WATER DEPT. (MWRA)	NORWOOD	29,909	Active
MATTAPOISETT RIVER VALLEY W.D.	MATTAPOISETT	29,600	Active
NORTHAMPTON WATER DIVISION	NORTHAMPTON	29,571	Active
WELLESLEY WATER DIVISION	WELLESLEY	29,550	Active
STOUGHTON WATER DEPARTMENT	STOUGHTON	29,281	Active
DANVERS AND MIDDLETON	MIDDLETON	29,224	Inactive
WEST SPRINGFIELD DPW WATER DIVISION	WEST SPRINGFIELD	28,835	Active
CHELMSFORD WATER DISTRICT	CHELMSFORD	28,750	Active
AGAWAM WATER DEPARTMENT	AGAWAM	28,692	Active
BRIDGEWATER WATER DEPARTMENT	BRIDGEWATER	28,633	Active
MILTON WATER DEPT. (MWRA)	MILTON	28,630	Active
DANVERS WATER DEPT.	MIDDLETON	28,087	Active
SAUGUS WATER DEPT. (MWRA)	SAUGUS	27,844	Active
WANNACOMET WATER COMPANY	NANTUCKET	27,703	Active
BELMONT WATER DEPT. (MWRA)	BELMONT	27,442	Active
WAKEFIELD WATER DEPT	WAKEFIELD	27,090	Active
AMHERST WATER DIVISION	AMHERST	26,331	Inactive
READING WATER DEPARTMENT (MWRA)	READING	26,262	Active
BURLINGTON WATER DEPT	BURLINGTON	25,864	Active
DRACUT WATER SUPPLY DISTRICT	COLLINSVILLE	25,808	Active
HIGH WOOD WATER COMPANY	MASHPEE	25,800	Inactive
EASTON WATER DIV	SOUTH EASTON	25,058	Active
DARTMOUTH WATER DIVISION	DARTMOUTH	24,696	Active
WALPOLE WATER DEPT	WALPOLE	24,070	Active
OAK BLUFFS WATER DISTRICT	OAK BLUFFS	24,000	Active
STONEHAM WATER DEPT (MWRA SUPPLY)	STONEHAM	23,244	Active
SANDWICH WATER DISTRICT	SANDWICH	23,000	Active
WINCHESTER WATER DEPT	WINCHESTER	22,970	Active
CANTON WATER DEPT	CANTON	22,766	Active
BOURNE WATER DISTRICT	POCASSET	22,500	Active
PROVINCETOWN WATER DEPARTMENT	PROVINCETOWN	22,250	Active
MANSFIELD WATER DIVISION	MANSFIELD	21,797	Active
WILMINGTON WATER DEPT	WILMINGTON	21,654	Active
WESTBOROUGH WATER DEPARTMENT	WESTBOROUGH	21,567	Active
GARDNER WATER DEPARTMENT	GARDNER	21,381	Active
ACTON WATER SUPPLY DISTRICT	ACTON	21,285	Active
MARBLEHEAD WATER DEPT. (MWRA)	MARBLEHEAD	20,441	Active
NEWBURYPORT WATER DEPARTMENT	NEWBURYPORT	20,335	Active
WAREHAM FIRE DISTRICT	PARKWOOD BEACH	20,102	Active
HUDSON WATER SUPPLY	HUDSON	20,032	Active
SOUTHBRIDGE WATER DEPARTMENT	SOUTHBRIDGE	19,562	Active
WINTHROP WATER DIVISION, (MWRA)	WINTHROP	19,316	Active
SCITUATE WATER DIVISION	SCITUATE	19,297	Active
NORTON WATER DEPARTMENT	NORTON	19,161	Active
WESTFORD WATER DEPARTMENT	WESTFORD	18,848	Active
ASHLAND WATER AND SEWER DEPT.	ASHLAND	18,832	Active
CONCORD WATER DEPT	CONCORD	18,788	Active
FOXBORO WATER DEPARTMENT	FOXBOROUGH	18,721	Active
NORTH ATTLEBORO WATER DEPT	NORTH ATTLEBORO	18,500	Inactive
SUDBURY WATER DISTRICT	SUDBURY	18,416	Active
SOMERSET WATER DEPARTMENT	SOMERSET	18,303	Active
PEMBROKE WATER DIVISION DPW	PEMBROKE	18,175	Active
HOLDEN WATER DIVISION, DPW	HOLDEN	18,016	Active
LUDLOW WATER DEPT (SPRINGFIELD W&SC)	SPRINGFIELD	18,000	Inactive
WEBSTER WATER DEPARTMENT	WEBSTER	17,776	Active
GREENFIELD WATER DEPARTMENT	GREENFIELD	17,768	Active
ROCKLAND WATER DEPT	ROCKLAND	17,500	Inactive
ORLEANS WATER DEPARTMENT	ORLEANS	17,460	Active
SWANSEA WATER DISTRICT	SWANSEA	17,375	Active
AMESBURY DPW WATER DIV.	AMESBURY	17,366	Active
SHARON WATER DEPT	SHARON	16,846	Active
BELLINGHAM DPW WATER SEWER DIVISION	BELLINGHAM	16,556	Active
DUXBURY WATER DEPARTMENT	DUXBURY	16,387	Active
NORTH READING WATER DEPT.	NORTH READING	16,379	Active
EAST LONGMEADOW DPW WATER DEPT	EAST LONGMEADOW	16,358	Active
EASTHAMPTON WATER DEPT	EASTHAMPTON	16,211	Active
LONGMEADOW WATER DEPT	LONGMEADOW	15,853	Active
CLINTON WATER DEPT	CLINTON	15,428	Active
MIDDLEBOROUGH WATER SUPPLY	MIDDLEBOROUGH	15,350	Active
SWAMPSCOTT WATER DEPT. (MWRA)	SWAMPSCOTT	15,300	Active
FAIRHAVEN WATER DEPT	FAIRHAVEN	15,155	Active
HOLLISTON WATER DEPARTMENT	HOLLISTON	15,139	Active
HANOVER WATER DEPT	HANOVER	14,984	Active
BEDFORD WATER DEPT.	BEDFORD	14,955	Active
WHITMAN WATER SYSTEM	WHITMAN	14,947	Active
SOUTH HADLEY FD #1 (MWRA)	SOUTH HADLEY	14,800	Active
KINGSTON WATER DEPARTMENT	KINGSTON	14,715	Active
EAST BRIDGEWATER WATER DEPT	EAST BRIDGEWATER	14,526	Active
MEDWAY WATER DEPARTMENT	MEDWAY	14,176	Active
WAYLAND WATER DEPARTMENT	WAYLAND	14,096	Active
SEEKONK WATER DISTRICT	SEEKONK	13,801	Active
NORTHBOROUGH WATER DEPARTMENT (MWRA)	NORTHBOROUGH	13,551	Active
HOLLISTON WATER DEPT	HOLLISTON	13,200	Inactive
IPSWICH DPU WATER DEPT	IPSWICH	13,138	Active
NORTH ADAMS WATER DEPT	NORTH ADAMS	13,000	Active
MEDFIELD WATER DEPT.	MEDFIELD	12,713	Active
HOPKINTON WATER DEPARTMENT	HOPKINTON	12,680	Active
AUBURN WATER DISTRICT	AUBURN	12,255	Active
WRENTHAM WATER DIVISION	WRENTHAM	12,190	Active
HANSCOM AFB	HANSCOM AFB	11,789	Active
UXBRIDGE DPW, WATER DIVISION	UXBRIDGE	11,612	Active
SOUTH HADLEY FIRE DISTRICT #1	SO HADLEY	11,500	Inactive
NORWELL WATER DEPARTMENT	NORWELL	11,495	Active
HOLBROOK PUBLIC WORKS DEPT	HOLBROOK	11,405	Active
ASH/WIN JOINT WATER AUTHORITY	ASHBURNHAM	11,394	Active
WESTON WATER DEPT.	WESTON	11,391	Active
AQUARION WATER COMPANY, MILLBURY	MILLBURY	11,368	Active
RAYNHAM CENTER WATER DISTRICT	RAYNHAM	10,964	Active
GRAFTON WATER DISTRICT	GRAFTON	10,925	Active
SOUTHBOROUGH DPW WATER DIVISION (MWRA)	SOUTHBOROUGH	10,638	Active
MAYNARD DPW, WATER DIVISION	MAYNARD	10,616	Active
ATHOL DPW WATER DIVISION	ATHOL	10,587	Active
HULL WATER DEPT.	HULL	10,572	Inactive
WARE WATER DEPT	WARE	10,066	Active
ROCKPORT WATER DEPT	ROCKPORT	10,000	Active
LENOX DPW WATER DIVISION	LENOX	9,800	Active
KENWOOD WATER DISTRICT	DRACUT	9,620	Active
HANSON WATER DEPARTMENT	HANSON	9,612	Active
AQUARION WATER COMPANY, PINEHILLS	MILLBURY	9,478	Active
BLACKSTONE WATER DEPARTMENT	BLACKSTONE	9,463	Active
SALISBURY WATER DIVISION	SALISBURY	9,334	Active
LITTLETON WATER DEPARTMENT	LITTLETON	9,307	Active
PEPPERELL DPW WATER DIVISION	PEPPERELL	9,217	Active
MILLIS WATER DEPT	MILLIS	9,055	Active
PLAINVILLE WATER DEPARTMENT	PLAINVILLE	8,805	Active
GEORGETOWN WATER DEPARTMENT	GEORGETOWN	8,766	Active
STURBRIDGE WATER DEPT	FISKDALE	8,750	Inactive
WILBRAHAM WATER DEPT (MWRA)	WILBRAHAM	8,533	Active
LYNNFIELD CENTER WATER DISTRICT	LYNNFIELD	8,525	Active
AYER DPW WATER DIVISION	AYER	8,479	Active
ACUSHNET WATER DEPARTMENT	ACUSHNET	8,430	Active
NORTHBRIDGE WATER DIVISION	NORTHBRIDGE	8,127	Active
TURNERS FALLS WATER DEPT	TURNERS FALLS	8,080	Active
EDGARTOWN WATER DEPARTMENT	EDGARTOWN	8,027	Active
ADAMS FIRE DISTRICT	ADAMS	7,945	Active

Showing the 200 largest of 803 systems on record, by population served. Browse by county above for the full list — every system has its own page, and all of them are in the sitemap.