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Framingham Water Hardness & Quality Report (2026)

Water Hardness

90mg/L
Moderately Hard

5.3 grains per gallon

Source

reservoir

pH Level

7.7

neutral = 7.0

Lead

0.006 mg/L

✓ Below action level

TDS

207.7 mg/L

Est. Daily Cost

$0.24

energy & soap waste

Source: USGS Water Quality Portal · Updated 2026

90mg/L as CaCO₃Moderately Hard

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Framingham, your appliances are currently losing 12% efficiency due to mineral buildup.

ApplianceIn FraminghamSoft Water CityEfficiency Loss
Kettle
6.6 yrs
8.5 yrs-22%
Washing Machine
10.3 yrs
12 yrs-14%
Water Heater
12 yrs
15 yrs-20%
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Regional Water Comparison

How Framingham compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Framingham, Massachusetts90 mg/L9.4 ppt🟡 Moderately Hardreservoir
Framingham Center, Massachusetts90 mg/L9.4 ppt🟡 Moderately Hardreservoir
Ashland, Massachusetts81.5 mg/L8.8 ppt🟡 Moderately Hardreservoir
Natick, Massachusetts91 mg/L9.4 ppt🟡 Moderately Hardreservoir
Holliston, Massachusetts85 mg/L9 ppt🟡 Moderately Hardreservoir

National Benchmark

How Framingham compares to the USA average

BenchmarkHardnessAppliance Risk
Framingham90 mg/L🟡 Low
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟢 None

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What Makes Framingham's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 207.7 mg/LpH: 7.7

Framingham, Massachusetts, in Middlesex County — the largest town in Massachusetts and now officially a city (re-incorporated 2017), a MetroWest anchor community adjacent to the Massachusetts Turnpike — draws its municipal water supply from the Cochituate Reservoir (Lake Cochituate) and the Framingham Reservoir system via the Framingham Water Division, treating reservoir water serving the Framingham metro area. The Framingham reservoirs draw from the MetroWest Massachusetts crystalline watershed. Water hardness in Framingham measures 90 mg/L — classified as moderately soft.

Framingham's moderately soft supply reflects the MetroWest Massachusetts reservoir watershed's crystalline bedrock. The Framingham–Cochituate area watersheds drain: the Proterozoic Dedham Granite (southeastern New England Precambrian granitic basement — calcium-poor); the Milford Pink Granite (a distinctive Proterozoic biotite granite of the Milford–Hopkinton area); and the Ordovician Marlboro Formation (metamorphic quartzite and phyllite). These crystalline and metamorphic formations dissolve very slowly, producing naturally soft water. The 90 mg/L is slightly elevated above some other MetroWest watersheds due to trace calcareous sedimentary interbeds in the Marlboro Formation and glacial till calcium leaching from the watershed soils.

With hardness at 90 mg/L, Framingham residents enjoy moderately soft water with minimal scale challenges. Framingham Water Division consistently delivers water meeting all Massachusetts MassDEP and EPA Safe Drinking Water Act requirements.

Geology & Source: Reservoir supply from the Sudbury–Cochituate–Framingham Reservoir system via the Framingham Water Division — the MetroWest Massachusetts Proterozoic Dedham Granite, Marlboro Formation, and Milford Pink Granite terrain; moderately soft supply at 90 mg/L — consistent with MetroWest Massachusetts crystalline rock watershed supply.

Other Massachusetts Water Reports

Frequently Asked Questions

Is Framingham's water safe to drink?
Yes. Framingham's water meets all federal safety standards. The hardness is 90 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Framingham?
Framingham's water is moderately hard at 90 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.
How does Framingham compare to the USA average?
The USA national average is 150 mg/L. Framingham at 90 mg/L is 60 mg/L below the national average. The softest major city is Badger at just 8.5 mg/L.
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