Roslindale Water Hardness & Quality Report (2026)
Water Hardness
2.7 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
83.4 mg/L
Est. Daily Cost
$0.12
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
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 Roslindale, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In Roslindale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.1 yrs | 8.5 yrs | -5% |
| Washing Machine | 11.9 yrs | 12 yrs | -1% |
| Water Heater | 13.8 yrs | 15 yrs | -8% |
Regional Water Comparison
How Roslindale compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Roslindale, Massachusetts | 46 mg/L | 6.3 ppt | 🟢 Soft | reservoir |
| Jamaica Plain, Massachusetts | 22.5 mg/L | 4.7 ppt | 🟢 Soft | reservoir |
| West Roxbury, Massachusetts | 83 mg/L | 8.9 ppt | 🟡 Moderately Hard | reservoir |
| Hyde Park, Massachusetts | 106 mg/L | 10.5 ppt | 🟡 Moderately Hard | reservoir |
| Brookline, Massachusetts | 65.5 mg/L | 7.7 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Roslindale compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Roslindale | 46 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Roslindale's Water Unique?
Local geology and source profile
Roslindale, Boston, Massachusetts — a major south Boston neighborhood (Roslindale is a significant Boston neighborhood — a south Boston community adjacent to West Roxbury and Jamaica Plain; Roslindale has one of the most vibrant and diverse neighborhood commercial centers in Boston — the Roslindale Square (a pedestrian-friendly commercial district along Washington Street and South Street that has been recognized as one of the best neighborhood commercial centers in the Boston metro for its mix of local restaurants, community businesses, and public spaces)); Roslindale is known for its excellent housing stock (Roslindale has a mix of two-family and single-family homes that are characteristic of the south Boston residential neighborhoods; Roslindale's residential architecture reflects the 1890s–1920s Boston suburban expansion), a diverse Suffolk County community with a significant Latino-American, Vietnamese-American, and working-class to middle-class Boston residential population, adjacent to Hyde Park and West Roxbury in the south Boston corridor — draws its municipal water supply via the MWRA and Boston Water and Sewer Commission. Water hardness in Roslindale measures 46 mg/L — classified as soft.
Roslindale's soft supply reflects the south Boston Suffolk County MWRA Wachusett watershed supply's calcareous-poor character. The BWSC distributes MWRA Wachusett watershed supply to the south Boston Roslindale zone, producing the soft 46 mg/L.
With hardness at 46 mg/L, Roslindale residents enjoy soft water. BWSC consistently delivers water meeting all Massachusetts DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Wachusett watershed via the MWRA (Boston Water and Sewer Commission) — the Suffolk County south Boston Roslindale corridor (Precambrian calcareous-poor Dedham Granite — the calcareous-poor south Boston crystalline watershed; excellent treatment); very soft supply at 46 mg/L in Suffolk County.