Is Massachusetts tap water safe to drink?

For most people, yes. MassDEP requires public systems to meet state and federal standards, including the state's own PFAS limit of 20 ppt. The catch the standards can't reach is lead, which can enter your water through older plumbing inside your home, so it's worth a look at your system's annual report and a thought about the age of your pipes.

What is the Massachusetts PFAS limit?

It's a single combined number for six chemicals at once. MassDEP set a Maximum Contaminant Level (the legal ceiling) of 20 nanograms per liter, the same as parts per trillion, for the combined total of six named PFAS. It was adopted in 2020 and applies to community and non-transient non-community systems.

Should I worry about lead in Massachusetts water?

Lead is worth understanding rather than worrying about. MassDEP says it usually comes from older service lines and household plumbing, not the source water, which means the risk depends on your specific home. Systems are mapping their lead service lines under federal rules, and homes built before 1986 are the ones most likely to have lead in the plumbing.

Water quality

Massachusetts water quality

If you live in Massachusetts, here's some genuine reassurance up front: the state moved early on PFAS, a family of long-lasting synthetic chemicals. The Massachusetts Department of Environmental Protection (MassDEP) set its own drinking water limit of 20 parts per trillion (ppt) for the sum of six PFAS back in 2020, ahead of the federal government, and where detections have shown up, individual communities have installed treatment. The contaminant that's more likely to involve your own home is lead, which usually comes from older service lines and household plumbing rather than the water leaving the plant; utilities have been mapping those lines, but the part inside your walls is on you to consider.

Documented considerations

PFAS

According to MassDEP, the state's 2020 standard sets a maximum contaminant level of 20 ng/L (ppt) for the sum of six PFAS (PFOS, PFOA, PFHxS, PFNA, PFHpA, PFDA) for community and non-transient non-community systems.

What removes pfas →

Lead

According to MassDEP, lead in tap water comes primarily from service lines and household plumbing; communities have been completing full service line inventories submitted to the state.

What removes lead →

Disinfection byproducts

Chlorinated surface-water systems can form total trihalomethanes and haloacetic acids; large suppliers like MWRA publish annual byproduct results in their water quality reports.

What removes disinfection byproducts →

Certified filters for Massachusetts's main concerns

8.4
Brita Elite Pitcher (10-Cup)
A pour-through pitcher whose Elite filter is certified to reduce lead, mercury, cadmium and more, with a long 120-gallon cartridge.
pfas, lead, chlorine
7.5
AquaTru Classic Countertop RO
A no-plumbing countertop 4-stage RO purifier certified to NSF standards for lead, PFAS, fluoride and arsenic with an efficient drain ratio.
pfas, lead, chlorine
7.5
Culligan US-EZ-4 Under-Sink
An under-sink filter genuinely IAPMO certified to NSF/ANSI 42, 53 and 401 for lead, cysts, VOCs, mercury and PFOA/PFOS.
pfas, lead, chlorine
7.2
Aquasana AQ-5200 Under-Sink
Certified for lead and PFAS, cheap per gallon, marketing matches the certified scope.
pfas, lead, chlorine
6.6
Waterdrop G3P800 Tankless RO
A tankless 800 GPD reverse-osmosis system IAPMO-certified to NSF/ANSI 42, 53, 58 and 372 for a broad contaminant list including lead, PFAS, arsenic, nitrate and fluoride.
pfas, lead, chlorine
4.9
ZeroWater 5-Stage Pitcher (7-Cup)
A five-stage ion-exchange pitcher certified for lead, chromium-6 and PFOA/PFOS - but a short 15-gallon filter makes it costly to run.
pfas, lead, chlorine

FAQ

Is Massachusetts tap water safe to drink?: For most people, yes. MassDEP requires public systems to meet state and federal standards, including the state's own PFAS limit of 20 ppt. The catch the standards can't reach is lead, which can enter your water through older plumbing inside your home, so it's worth a look at your system's annual report and a thought about the age of your pipes.
What is the Massachusetts PFAS limit?: It's a single combined number for six chemicals at once. MassDEP set a Maximum Contaminant Level (the legal ceiling) of 20 nanograms per liter, the same as parts per trillion, for the combined total of six named PFAS. It was adopted in 2020 and applies to community and non-transient non-community systems.
Should I worry about lead in Massachusetts water?: Lead is worth understanding rather than worrying about. MassDEP says it usually comes from older service lines and household plumbing, not the source water, which means the risk depends on your specific home. Systems are mapping their lead service lines under federal rules, and homes built before 1986 are the ones most likely to have lead in the plumbing.

Sources

Not sure how to read your local report? See our guide on reading a water quality report.