Bridgewater Water Hardness & Quality Report (2026)
Water Hardness
8.7 grains per gallon
Source
reservoir
pH Level
8
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
357.9 mg/L
Est. Daily Cost
$0.40
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 Bridgewater, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Bridgewater | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 8.1 yrs | 12 yrs | -33% |
| Water Heater | 9.7 yrs | 15 yrs | -35% |
Regional Water Comparison
How Bridgewater compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Bridgewater, New Jersey | 148.5 mg/L | 11.3 ppt | 🟠 Hard | reservoir |
| Bradley Gardens, New Jersey | 59 mg/L | 6.3 ppt | 🟢 Soft | reservoir |
| Hillsborough, New Jersey | 94.5 mg/L | 8.2 ppt | 🟡 Moderately Hard | reservoir |
| Warren Township, New Jersey | 148.5 mg/L | 11.3 ppt | 🟠 Hard | reservoir |
| Basking Ridge, New Jersey | 181 mg/L | 13.1 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Bridgewater compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Bridgewater | 148.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Bridgewater's Water Unique?
Local geology and source profile
Bridgewater, New Jersey, in Somerset County at the confluence of the North and South Branches of the Raritan River — a major Central New Jersey corporate and residential hub, home of numerous Fortune 500 and pharmaceutical company headquarters (Sanofi, Insmed, Synchronoss Technologies, KPMG US), a large suburban township with a significant South Asian Indian-American professional community, and one of New Jersey's most economically dynamic suburban communities — draws its municipal water supply from the Raritan River alluvial aquifer and New Jersey American Water regional supply via Bridgewater Township Water Department. Water hardness in Bridgewater measures 148.5 mg/L — classified as moderately hard.
Bridgewater's moderate hardness reflects the Somerset County Raritan River watershed's calcareous-moderate geology. The Raritan River tributaries draining the Bridgewater area include Somerset County Precambrian New Jersey Highlands crystalline bedrock (the Sourland Mountains — calcareous-poor Precambrian gneiss and diabase) and the Triassic Newark Basin red arkose and shale (moderately calcareous Triassic rift basin sediment). New Jersey American Water's regional supply blends with local Somerset County aquifer sources, and the Bridgewater distribution infrastructure — including mains from the 1950s–1990s corporate suburban buildout era — produces the moderate 148.5 mg/L.
At 148.5 mg/L, Bridgewater residents encounter moderate-to-hard scale accumulation. Monthly cleaning with citric acid solution is recommended for faucet aerators and showerheads. New Jersey American Water / Bridgewater Township Water Department consistently delivers water meeting all New Jersey DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Raritan River alluvial aquifer and the Amwell Valley aquifer via the Bridgewater Township Water Department and New Jersey American Water — the Somerset County central New Jersey Raritan River watershed (Triassic Newark Basin red arkose and Precambrian Highlands crystalline — calcareous-moderate terrain); moderately hard supply at 148.5 mg/L in Somerset County.