Weymouth, MA water hardness

Tap water hardness
28mg/L
1.7gpg
Soft

Reported by Weymouth Water Department · December 2024

MA typical
38 mg/L
EPA health violations since 2016
0
Data
Utility report

Weymouth water measures 28 mg/L (1.7 gpg) of hardness, soft by USGS standards. The number comes from Weymouth Water Department, dated December 2024.

Weymouth on the hardness scale, with nearby cities
060120180240300360+MA typical 38Boston: 17 mg/LBoston 17North Scituate: 35 mg/LNorth Scituate 35Quincy: 38 mg/LQuincy 38Milton: 44 mg/LMilton 44Brockton: 49 mg/LBrockton 49Braintree: 55 mg/LBraintree 55Abington: 67 mg/LAbington 67Randolph: 68 mg/LRandolph 68Holbrook: 74 mg/LHolbrook 74Hingham: 123 mg/LHingham 123Weymouth 28mg/L as calcium carbonate060120180240300360+MA 38Quincy: 38 mg/LQuincy 38Braintree: 55 mg/LBraintree 55Abington: 67 mg/LAbington 67Randolph: 68 mg/LRandolph 68Holbrook: 74 mg/LHolbrook 74Hingham: 123 mg/LHingham 12328 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Weymouth sits close to the typical Massachusetts figure of 38 mg/L. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 17 mg/L in Boston to 123 in Hingham.

What 28 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 28 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Weymouth's water system

Weymouth Water Department · PWSID MA4336000

No health-based violations since 2016

Serves about 57,871 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
0

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Weymouth water hard?

No. It measures about 28 mg/L (1.7 grains per gallon), which the USGS classes as soft.

What is the water hardness in Weymouth in grains per gallon?

About 1.7 gpg. One grain per gallon equals 17.1 mg/L, so 28 mg/L divided by 17.1 gives 1.7.

Has the Weymouth water system had EPA violations?

EPA records show no health-based violations for Weymouth Water Department since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 104 cities in Massachusetts

Hardness data: TapWaterData US Water Hardness (utility report, December 11, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.