Lynnfield Water Hardness & Quality Report (2026)
Water Hardness
6.3 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
269.6 mg/L
Est. Daily Cost
$0.29
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 Lynnfield, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Lynnfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Lynnfield compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lynnfield, Massachusetts | 107.5 mg/L | 10.6 ppt | 🟡 Moderately Hard | reservoir |
| Wakefield, Massachusetts | 47.5 mg/L | 6.4 ppt | 🟢 Soft | reservoir |
| North Reading, Massachusetts | 121.5 mg/L | 11.6 ppt | 🟠 Hard | reservoir |
| Reading, Massachusetts | 20.5 mg/L | 4.5 ppt | 🟢 Soft | reservoir |
| Stoneham, Massachusetts | 65.5 mg/L | 7.6 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Lynnfield compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lynnfield | 107.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lynnfield's Water Unique?
Local geology and source profile
Lynnfield, Massachusetts, in Essex County — an Essex County town adjacent to Peabody and North Reading in the northeast Boston suburbs — receives its water from the Lynnfield Water District, drawing from Suntaug Lake and connected reservoirs through the northeast Massachusetts distribution.
The moderately hard 107.5 mg/L hardness and TDS of 269.6 mg/L reflect the Essex County Suntaug Lake supply's moderate character — the Precambrian Grenville Province gneiss is highly insoluble but the higher TDS likely reflects some groundwater blending with calcareous glacial till deposits in the Ipswich watershed zone (compare Peabody MA: 105/263 in Essex County comparable; North Reading MA: 110/276 in Middlesex County comparable; Lynnfield consistent moderate from the same Essex County Suntaug Lake Precambrian insoluble supply). The Ipswich watershed at Essex County — Precambrian Grenville Province gneiss (insoluble — primary dilutant), Cambrian Wepawaug Formation (insoluble — secondary dilutant), and Quaternary glacial outwash (slightly calcareous — primary hardness contributor).
At 107.5 mg/L with TDS 270, Lynnfield's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 10.6 ppt is very high — a certified drinking water filter with PFAS removal is strongly recommended — the Essex County northeast Massachusetts industrial legacy (leather tanning, Superfund sites) and military (former Westover ARB, Otis ANG) contribute to Lynnfield's very elevated PFAS readings.
Geology & Source: Lynnfield in Essex County draws from the Lynnfield Water on Suntaug Lake reservoir (Essex County, northeast Massachusetts) — the Ipswich watershed at Essex County drains Precambrian Grenville Province gneiss (insoluble) and Cambrian Wepawaug Formation (insoluble) — Massachusetts Essex County Suntaug Lake Precambrian insoluble supply produces moderately hard water at 107.5 mg/L with TDS 269.6 mg/L.