Concord Water Hardness & Quality Report (2026)
Water Hardness
3.1 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
99 mg/L
Est. Daily Cost
$0.14
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 Concord, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Concord | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.9 yrs | 8.5 yrs | -7% |
| Washing Machine | 11.7 yrs | 12 yrs | -3% |
| Water Heater | 13.5 yrs | 15 yrs | -10% |
Regional Water Comparison
How Concord compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Concord, Massachusetts | 52.5 mg/L | 6.7 ppt | 🟢 Soft | reservoir |
| Bedford, Massachusetts | 118.5 mg/L | 11.4 ppt | 🟡 Moderately Hard | reservoir |
| Acton, Massachusetts | 57.5 mg/L | 7.1 ppt | 🟢 Soft | reservoir |
| Wayland, Massachusetts | 63.5 mg/L | 7.5 ppt | 🟡 Moderately Hard | reservoir |
| Sudbury, Massachusetts | 73.5 mg/L | 8.2 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Concord compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Concord | 52.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Concord's Water Unique?
Local geology and source profile
Concord, Massachusetts, in Middlesex County — a Middlesex County town adjacent to Lexington and Lincoln in the historic Minuteman Corridor of central Massachusetts, site of the first battles of the American Revolution — receives its municipal water from the Concord Public Works Water Division, drawing from Nagog Pond (Acton, Middlesex County) and local groundwater wells.
The moderately soft 52.5 mg/L hardness and low TDS of 99 mg/L reflect the central Massachusetts upland's predominantly insoluble crystalline geology. The Concord watershed drains the Central Massachusetts Upland — Precambrian Nashoba Zone gneiss and schist (insoluble metamorphic), Devonian Acton Granite (insoluble granite), and Precambrian Marlborough Formation (insoluble phyllite). Nagog Pond at Acton collects drainage from the insoluble granitic uplands, producing the moderately soft supply typical of the upland Massachusetts communities using local crystalline watershed sources.
At 52.5 mg/L, Concord's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 6.7 ppt warrants a certified drinking water filter — Hanscom Air Force Base (Middlesex County — AFFF, directly adjacent to the Concord-Bedford-Lexington watershed), the Route 2 corridor industrial legacy, and the Middlesex County PFAS background contribute to Concord's elevated readings.
Geology & Source: Concord in Middlesex County draws from local reservoirs (Nagog Pond) or MWRA (Middlesex County, central Massachusetts) — the Concord watershed drains the Central Massachusetts Upland (Precambrian Nashoba Zone gneiss, Devonian Acton Granite — insoluble crystalline) — Massachusetts Middlesex County Concord Precambrian-Devonian crystalline watershed produces moderately soft water at 52.5 mg/L with TDS 99 mg/L in this Middlesex County Massachusetts town.