Water Quality in Massachusetts: Complete Guide
Everything homeowners need to know about Massachusetts tap water - hardness, contaminants, treatment options, and costs.
Quick summary: Massachusetts has an average water hardness of 19 PPM across 21 cities. 0% of cities have hard water above 120 PPM. PFAS contamination is detected above EPA limits in at least one city. Most households do not need water softening equipment.
Water Hardness Across Massachusetts
Massachusetts's water hardness ranges from 8 PPM in Gloucester to 51 PPM in Springfield, with a statewide average of 19 PPM. This makes Massachusetts one of the softer-water states. The national average is approximately 120 PPM.
Most Massachusetts cities use surface water (rivers, lakes, reservoirs), which generally has lower mineral content than groundwater.
Contaminants of Concern in Massachusetts
PFAS: The average PFAS level across Massachusetts cities is 3.8 ppt. Lynn has the highest detected PFAS at 21.97 ppt, above the EPA maximum contaminant level of 4 ppt. Residents should consider a reverse osmosis or NSF P473-certified filter for drinking water.
Lead: Lead contamination comes from plumbing infrastructure, not the water source. Massachusetts homes built before 1986 are at higher risk due to lead solder. 6 cities show lead levels above 5 ppb.
Do You Need a Water Softener in Massachusetts?
For most Massachusetts residents, no. Only 0% of cities have hard water above 120 PPM. However, individual situations vary - check your city page for specific data.
Impact of Hard Water in Massachusetts
With an average hardness of 19 PPM, most Massachusetts households do not face significant hard water impact. However, homes with hardness above 120 PPM should evaluate treatment options.