Florham Park Water Hardness & Quality Report (2026)
Water Hardness
2.2 grains per gallon
Source
reservoir
pH Level
7.2
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
57 mg/L
Est. Daily Cost
$0.10
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 Florham Park, your appliances are currently losing 5% efficiency due to mineral buildup.
| Appliance | In Florham Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.4 yrs | 8.5 yrs | -1% |
| Washing Machine | 12.2 yrs | 12 yrs | — |
| Water Heater | 14.1 yrs | 15 yrs | -6% |
Regional Water Comparison
How Florham Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Florham Park, New Jersey | 37.5 mg/L | 5 ppt | 🟢 Soft | reservoir |
| Hanover, New Jersey | 78.5 mg/L | 7.4 ppt | 🟡 Moderately Hard | reservoir |
| East Hanover, New Jersey | 148 mg/L | 11.2 ppt | 🟠 Hard | reservoir |
| Madison, New Jersey | 41.5 mg/L | 5.3 ppt | 🟢 Soft | reservoir |
| Livingston, New Jersey | 181.5 mg/L | 13.1 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Florham Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Florham Park | 37.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Florham Park's Water Unique?
Local geology and source profile
Florham Park, New Jersey, in Morris County — a Morris County borough adjacent to Madison and Chatham in the New Jersey Morris County suburbs — receives its water from New Jersey American Water, drawing from Boonton Reservoir on the Rockaway River through the north-central New Jersey distribution.
The extremely soft 37.5 mg/L hardness and very low TDS of 57 mg/L make Florham Park's water among the softest municipal supplies in New Jersey — the Precambrian Highlands Gneiss and Cambrian Allamuchy Mountain Formation are both highly insoluble crystalline rocks, contributing negligible dissolved minerals to the pristine Rockaway watershed runoff (compare Madison NJ: 36/54 in Morris County comparable; Chatham NJ: 39/60 in Morris County comparable; Florham Park consistent extremely soft from the same Morris County Boonton Reservoir Precambrian insoluble supply). The Rockaway watershed at Morris County — Precambrian Highlands Gneiss (insoluble — primary dilutant), Cambrian Allamuchy Mountain Formation (insoluble — secondary dilutant), and Quaternary glacial outwash (insoluble — minimal TDS).
At 37.5 mg/L with TDS 57, Florham Park has extremely soft water — virtually no scale buildup ever. However, this very soft water is corrosive — residents in homes with older copper or lead service lines should run taps before drinking and consider a NSF-certified filter. The PFAS level of 5.0 ppt is moderate — a certified filter is recommended. Review NJ American Water's annual water quality report.
Geology & Source: Florham Park in Morris County draws from NJ American Water on Boonton Reservoir (Morris County, north-central New Jersey) — the Rockaway watershed at Morris County drains Precambrian Highlands Gneiss (insoluble) and Cambrian Allamuchy Mountain Formation (insoluble) — New Jersey Morris County Boonton Reservoir Precambrian insoluble supply produces extremely soft water at 37.5 mg/L with TDS 57 mg/L.