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National Drinking Water Database

Lead (total) in Massachusetts

Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits. [read more]

The Most Polluted Communities in Massachusetts

23 water utilities reported detecting Lead (total) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Lead (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Oak Bluffs Water District
Oak Bluffs, MA
30,0001 of 123.5 ppb
(23.5 ppb)
2Weymouth Water Department
52,6321 of 19.17 ppb
(9.17 ppb)
3Stoughton Water Division
Stoughton, MA
27,1491 of 15.75 ppb
(5.75 ppb)
4Falmouth Water Dept
Falmouth, MA
77,5001 of 15 ppb
(5 ppb)
5Dighton Water District
Dighton, MA
2,7493 of 34.64 ppb
(3 to 6.25 ppb)
6Wrentham Water Division
West Wrentham, MA
8,6521 of 14 ppb
(4 ppb)
7Braintree Water & Sewer Dept.
33,6002 of 23.73 ppb
(3.63 to 3.83 ppb)
8Easton Water Div
Easton, MA
22,9041 of 13.5 ppb
(3.5 ppb)
9Dartmouth Water Div.
Dartmouth, MA
30,0003 of 33.25 ppb
(2 to 4 ppb)
10Orleans Water Department
Orleans, MA
20,9371 of 13 ppb
(3 ppb)

Health Based Limits for Lead (total)

Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.2 ppb

Violation Summary for Lead (total) in Massachusetts

There are no violations reported for this contaminant in Massachusetts