Berkeley Heights Water Hardness & Quality Report (2026)
Water Hardness
2.5 grains per gallon
Source
reservoir
pH Level
7.2
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
68.2 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 Berkeley Heights, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In Berkeley Heights | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.2 yrs | 8.5 yrs | -4% |
| Washing Machine | 12 yrs | 12 yrs | — |
| Water Heater | 13.9 yrs | 15 yrs | -7% |
Regional Water Comparison
How Berkeley Heights compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Berkeley Heights, New Jersey | 43.5 mg/L | 5.4 ppt | 🟢 Soft | reservoir |
| New Providence, New Jersey | 101.5 mg/L | 8.6 ppt | 🟡 Moderately Hard | reservoir |
| North Plainfield, New Jersey | 110.5 mg/L | 9.2 ppt | 🟡 Moderately Hard | reservoir |
| Scotch Plains, New Jersey | 108 mg/L | 9 ppt | 🟡 Moderately Hard | reservoir |
| Plainfield, New Jersey | 156 mg/L | 11.7 ppt | 🟠 Hard | reservoir |
National Benchmark
How Berkeley Heights compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Berkeley Heights | 43.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Berkeley Heights's Water Unique?
Local geology and source profile
Berkeley Heights, New Jersey, in Union County — a Union County township adjacent to Summit and New Providence in northeast New Jersey — receives its water from New Jersey American Water, drawing from New Jersey Highlands reservoirs (Union County) through the northeast New Jersey distribution.
The very soft 43.5 mg/L hardness and TDS of 68.2 mg/L are dramatically softer than the adjacent Springfield NJ (136 mg/L) and most other Union County communities — reflecting Berkeley Heights' supply from the predominantly insoluble Precambrian gneiss Highlands reservoir system rather than the Raritan River or Delaware River calcareous supplies. The New Jersey Highlands reservoir watershed at Union County drains — Precambrian Losee Gneiss (insoluble — primary dilutant), Precambrian Byram Intrusive Suite (insoluble), Cambrian calcareous formations (slightly calcareous — very minor hardness contributor), and Quaternary soil/till (minimal calcareous).
At 43.5 mg/L, Berkeley Heights' water is very soft — minimal scale forms, dishwashers require very little detergent, and appliances remain essentially scale-free. Annual descaling is sufficient. The PFAS level of 5.4 ppt warrants a certified drinking water filter — Picatinny Arsenal (Morris County — AFFF) and the northeast New Jersey industrial corridor contribute to Berkeley Heights' readings.
Geology & Source: Berkeley Heights in Union County draws from the New Jersey American Water on the Passaic River or New Jersey Highlands reservoir (Union County, northeast New Jersey) — the reservoir drains the New Jersey Highlands (Precambrian Losee Gneiss — insoluble, Cambrian calcareous formations — slightly calcareous) — New Jersey Union County Highlands Precambrian crystalline reservoir produces very soft water at 43.5 mg/L with TDS 68.2 mg/L.