Mercerville Water Hardness & Quality Report (2026)
Water Hardness
3.6 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
106.6 mg/L
Est. Daily Cost
$0.17
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 Mercerville, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Mercerville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.6 yrs | 8.5 yrs | -11% |
| Washing Machine | 11.3 yrs | 12 yrs | -6% |
| Water Heater | 13.1 yrs | 15 yrs | -13% |
Regional Water Comparison
How Mercerville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Mercerville, New Jersey | 62 mg/L | 6.4 ppt | 🟡 Moderately Hard | reservoir |
| Mercerville-Hamilton Square, New Jersey | 64.5 mg/L | 6.6 ppt | 🟡 Moderately Hard | reservoir |
| Hamilton Square, New Jersey | 77 mg/L | 7.3 ppt | 🟡 Moderately Hard | reservoir |
| Trenton, New Jersey | 167.5 mg/L | 12.3 ppt | 🟠 Hard | reservoir |
| Princeton, New Jersey | 168 mg/L | 12.4 ppt | 🟠 Hard | reservoir |
National Benchmark
How Mercerville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mercerville | 62 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Mercerville's Water Unique?
Local geology and source profile
Mercerville, New Jersey, in Mercer County — a Mercer County community adjacent to Trenton and Hamilton Township in central New Jersey — receives its water from New Jersey American Water, drawing from the Delaware River watershed or local Brunswick Formation aquifer (Mercer County) through the central New Jersey distribution.
The soft 62 mg/L hardness and TDS of 106.6 mg/L reflect the central New Jersey Mercer County supply's soft character — the Delaware River watershed's Precambrian Highlands and Triassic red beds contribute minimal calcareous dissolution, producing soft water consistent with other central New Jersey reservoir communities (compare Franklin Park NJ: 46 mg/L; Verona NJ: 58 mg/L). The Mercer County supply — Triassic Brunswick Formation (slightly calcareous — primary hardness contributor), Cretaceous Potomac Formation (insoluble — dilutant), and Delaware River reservoir input (Precambrian insoluble — dilutant).
At 62 mg/L, Mercerville's water is soft — scale forms very slowly in appliances, dishwashers remain efficient, and no softening is needed. Annual descaling is appropriate. The PFAS level of 6.4 ppt warrants a certified drinking water filter — the Mercer County central New Jersey industrial corridor and former military sites contribute to Mercerville's readings.
Geology & Source: Mercerville in Mercer County draws from the New Jersey American Water on the Delaware River watershed or local Triassic Brunswick Formation aquifer (Mercer County, central New Jersey) — the Brunswick aquifer at Mercer County is developed in Triassic Brunswick red beds (slightly calcareous) and Cretaceous Potomac Formation (insoluble) — New Jersey Mercer County Delaware-Brunswick Triassic-Cretaceous supply produces soft water at 62 mg/L with TDS 106.6 mg/L.