Massachusetts

528 Utilities
Serving: 6,716,000
Data available: 2014-2019
Contaminants Found: 116

EWG's drinking water quality report for Massachusetts shows results of tests conducted by the water utilities in Massachusetts and provided to EWG by the Massachusetts Department of Environmental Protection.

LARGE UTILITIES

ALL UTILITIES WITH VIOLATIONS

LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Massachusetts serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.

Large utilities in Massachusetts

Utility	Location	People Served
Abington/rockland Joint Water Works	Rockland, MA	33,887
Acton Water Supply District	Acton, MA	20,890
Agawam Water Department	Agawam, MA	28,849
Amesbury DPW Water Div.	Amesbury, MA	16,283
Amherst DPW Water Division	Amherst, MA	37,819
Andover Water Department	Andover, MA	33,201
Arlington Water Department (MWRA)	Arlington, MA	42,844
Ashland Water and Sewer Department	Ashland, MA	16,593
Athol DPW Water Division	Athol, MA	10,172
Attleboro Water Department	Attleboro, MA	43,593
Auburn Water District	Auburn, MA	11,763
Bedford Water Department (MWRA)	Bedford, MA	13,691
Bellingham Dpw Water Sewer Div.	Bellingham, MA	15,390
Belmont Water Department (MWRA)	Belmont, MA	24,254
Beverly Water Department	Beverly, MA	43,316
Billerica Water Works	Billerica, MA	40,243
Boston Water and Sewer Commission (MWRA)	Boston, MA	617,594
Bourne Water District	Pocasset, MA	22,500
Braintree Water and Sewer Department	Braintree, MA	37,544
Brewster Water Department	Brewster, MA	35,000
Bridgewater Water Department	Bridgewater, MA	26,563
Brockton Water Commission	Brockton, MA	93,810
Brookline Water And Sewer Div. (MWRA)	Brookline, MA	58,732
Burlington Water Department	Burlington, MA	25,392
Cambridge Water Department (MWRA)	Cambridge, MA	105,162
Canton Water Department (MWRA)	Canton, MA	21,458
Centerville Osterville Marstons Mills WD	Osterville, MA	50,000
Chatham Water Department	Chatham, MA	30,000
Chelmsford Water District	Chelmsford, MA	28,079
Chelsea Water Department (MWRA)	Chelsea, MA	35,177

Utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Massachusetts

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

Utility	Location	People Served	Violation Points
Monroe Water District	Monroe, MA	55	62
Swansea Water District	Swansea, MA	17,358	45
Chester Water Department	Chester, MA	750	42
Hanover Water Department	Hanover, MA	14,899	35
Somerset Water Department	Somerset, MA	18,257	35
Madden Estates	West Brookfield, MA	50	25
Springfield Water and Sewer Commission	Springfield, MA	230,331	25
Plainville Water Department	Plainville, MA	8,964	20
Strawberry Hill Apartments	Acton, MA	80	20
Berkshire Village Cooperative	Berkshire, MA	34	20
Dartmouth Water Division	Dartmouth, MA	24,272	20
Great Barrington Fire District	Great Barrington, MA	4,100	15
Mill River Water Takers Association	Mill River, MA	60	15
Scituate Water Division	Scituate, MA	19,688	15
East Longmeadow DPW Water Department	East Longmeadow, MA	16,162	15
Colonial Water Company	Dover, MA	1,809	12
Falmouth Water Department	Falmouth, MA	77,500	11
Onset Fire District	Onset, MA	5,048	11
Menemsha Water Company	Chilmark, MA	841	11
Bolton Country Manor	Bolton, MA	60	11
Wellesley College	Wellesley, MA	3,000	10
Sports Haven Mobile Home Park	Belchertown, MA	107	10
Uxbridge DPW Water Division	Uxbridge, MA	10,715	10
Wellfleet Municipal Water System	Wellfleet, MA	750	10
Reading Water Department	Reading, MA	27,045	10
Marshfield Water Department	Marshfield, MA	34,000	10
South Deerfield Water Supply District	South Deerfield, MA	3,800	10
Pan Am Southern Railroad	East Deerfield, MA	100	8
Peabody Water Department (MWRA)	Peabody, MA	52,474	7
Lanesborough Fire and Water District	Lanesborough, MA	2,324	7

Large utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Massachusetts

Utility	Location	People Served	Violation Points
Swansea Water District	Swansea, MA	17,358	45
Somerset Water Department	Somerset, MA	18,257	35
Hanover Water Department	Hanover, MA	14,899	35
Springfield Water and Sewer Commission	Springfield, MA	230,331	25
Dartmouth Water Division	Dartmouth, MA	24,272	20
Scituate Water Division	Scituate, MA	19,688	15
East Longmeadow DPW Water Department	East Longmeadow, MA	16,162	15
Falmouth Water Department	Falmouth, MA	77,500	11
Uxbridge DPW Water Division	Uxbridge, MA	10,715	10
Marshfield Water Department	Marshfield, MA	34,000	10
Reading Water Department	Reading, MA	27,045	10
Peabody Water Department (MWRA)	Peabody, MA	52,474	7
North Reading Water Department	North Reading, MA	15,500	6
Lawrence Water Works	Lawrence, MA	76,377	6
Hanscom AFB	Hanscom Afb, MA	11,799	6
Bedford Water Department (MWRA)	Bedford, MA	13,691	5
North Adams Water Department	North Adams, MA	13,000	5
Newburyport Water Department	Newburyport, MA	20,335	5
Wannacomet Water Company	Nantucket, MA	27,703	5
Agawam Water Department	Agawam, MA	28,849	5
Abington/rockland Joint Water Works	Rockland, MA	33,887	5
Attleboro Water Department	Attleboro, MA	43,593	5
Concord Water Department	Concord, MA	16,402	5
Lowell Regional Water Utility	Lowell, MA	106,519	5
Maynard DPW, Water Division	Maynard, MA	10,665	3
Auburn Water District	Auburn, MA	11,763	2
Westfield Water Department	Westfield, MA	42,000	2
Kingston Water Department	Kingston, MA	13,720	1
Sudbury Water District	Sudbury, MA	18,410	1
Holliston Water Department	Holliston, MA	14,946	1

Contaminants found in Massachusetts above health guidelines

	Found above health guidelines			Found
Contaminant	# of Utilities	People Served		# of Utilities	People Served
Total trihalomethanes (TTHMs)		368	6,554,803			372	6,570,251
Chloroform		305	6,322,027			335	6,502,901
Haloacetic acids (HAA5)		297	6,299,249			296	6,298,824
Bromodichloromethane		313	6,270,098			314	6,304,098
Dibromochloromethane		299	5,725,579			307	5,791,991
Dichloroacetic acid		235	5,489,276			239	5,581,991
Trichloroacetic acid		229	5,410,336			229	5,444,911
Haloacetic acids (HAA9)		168	5,365,746			193	5,922,910
Nitrate		384	5,243,156			481	6,388,056
Radium, combined (-226 & -228)		380	5,044,699			380	5,044,568
Chromium (hexavalent)		170	4,206,665			191	4,886,885
Dibromoacetic acid		119	2,510,713			121	2,642,973
Bromoform		104	1,685,671			184	2,934,350
Chlorate		34	938,033			179	5,301,451
Manganese		98	787,369			467	6,656,428
Perfluorooctanoic acid (PFOA)		35	713,516			35	713,516
Tetrachloroethylene (perchloroethylene)		38	562,538			44	685,325
Arsenic		62	457,154			62	457,154
Perfluorooctane sulfonate (PFOS)		21	360,184			27	563,453
Chlorite		12	356,162			15	499,081
Perfluorohexane sulfonate (PFHXS)		16	258,451			24	529,966
Bromate		10	227,212			13	346,642
Perfluoroheptanoic acid (PFHPA)		12	191,106			22	454,386
Thallium		7	173,388			7	173,388
Perfluorobutane sulfonate (PFBS)		11	100,108			23	468,285
Cadmium		6	85,132			6	85,132
Radon		28	72,712			28	72,712
Trichloroethylene		5	57,280			7	75,790
Perfluorononanoic acid (PFNA)		2	43,803			6	85,318
1,4-Dioxane		3	25,960			58	1,254,995
Vinyl chloride		2	22,925			2	22,925
Antimony		1	20,830			7	75,641
Uranium		23	17,151			25	37,401
Chloromethane		1	3,167			35	613,971
Perchlorate		2	128			244	2,881,654
Beryllium		1	107			2	165
Atrazine		1	54			3	55,934

Contaminants found in Massachusetts above legal limits

Contaminant	People Served
Arsenic	2	22,395
Radium, combined (-226 & -228)	3	230
Uranium	1	60
Haloacetic acids (HAA5)	1	55

Massachusetts

528 Utilities

Serving: 6,716,000

Data available: 2014-2019

Contaminants Found: 116

Large utilities in Massachusetts

Utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Massachusetts

Large utilities that accumulated/accrued the most violation points as of April 2019 to March 2021 in Massachusetts

Contaminants found in Massachusetts above health guidelines

Contaminants found in Massachusetts above legal limits