Glen Rock Water Hardness & Quality Report (2026)
Water Hardness
3.3 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
95.7 mg/L
Est. Daily Cost
$0.15
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 Glen Rock, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Glen Rock | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.7 yrs | 8.5 yrs | -9% |
| Washing Machine | 11.5 yrs | 12 yrs | -4% |
| Water Heater | 13.3 yrs | 15 yrs | -11% |
Regional Water Comparison
How Glen Rock compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Glen Rock, New Jersey | 57 mg/L | 6.2 ppt | 🟢 Soft | reservoir |
| Fair Lawn, New Jersey | 168.5 mg/L | 12.4 ppt | 🟠 Hard | reservoir |
| Ridgewood, New Jersey | 38 mg/L | 5.1 ppt | 🟢 Soft | reservoir |
| Hawthorne, New Jersey | 84.5 mg/L | 7.7 ppt | 🟡 Moderately Hard | reservoir |
| Waldwick, New Jersey | 44.5 mg/L | 5.4 ppt | 🟢 Soft | reservoir |
National Benchmark
How Glen Rock compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Glen Rock | 57 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Glen Rock's Water Unique?
Local geology and source profile
Glen Rock, New Jersey, in Bergen County — a Bergen County borough adjacent to Ridgewood and Waldwick in north-central New Jersey — receives its water from New Jersey American Water or a local utility, drawing from Oradell Reservoir on the Hackensack River through the north-central New Jersey distribution.
The soft 57 mg/L hardness and low TDS of 95.7 mg/L reflect the Bergen County Hackensack supply's soft character — the Precambrian Highlands Gneiss is highly insoluble and dominates the upper Hackensack watershed geology, contributing negligible dissolved minerals (compare Ridgewood NJ: 55/92 in Bergen County comparable; Waldwick NJ: 58/98 in Bergen County comparable; Glen Rock consistent soft from the same Bergen County Oradell Reservoir Precambrian insoluble supply). The Hackensack watershed at Bergen County — Precambrian Highlands Gneiss (insoluble — primary dilutant), Cambrian Kittatinny Limestone (slightly calcareous — minor hardness contributor), and Triassic Passaic Formation (slightly calcareous — minor TDS).
At 57 mg/L with TDS 96, Glen Rock's water is soft — minimal scale buildup, excellent soap lathering. Soft water is gently corrosive — in older homes with copper plumbing, watch for faint blue-green staining. The PFAS level of 6.2 ppt is elevated — a certified drinking water filter is recommended — the Bergen County north New Jersey industrial corridor contributes to Glen Rock's elevated PFAS readings. Review NJ American Water's annual water quality report for the latest data.
Geology & Source: Glen Rock in Bergen County draws from NJ American Water on Oradell Reservoir (Bergen County, north-central New Jersey) — the Hackensack watershed at Bergen County drains Precambrian Highlands Gneiss (insoluble) and Cambrian Kittatinny Limestone (slightly calcareous) — New Jersey Bergen County Oradell Reservoir Precambrian insoluble supply produces soft water at 57 mg/L with TDS 95.7 mg/L.