Mount Holly Water Hardness & Quality Report (2026)
Water Hardness
5.9 grains per gallon
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
203.6 mg/L
Est. Daily Cost
$0.27
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 Mount Holly, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Mount Holly | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.3 yrs | 8.5 yrs | -26% |
| Washing Machine | 9.9 yrs | 12 yrs | -17% |
| Water Heater | 11.6 yrs | 15 yrs | -23% |
Regional Water Comparison
How Mount Holly compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Mount Holly, New Jersey | 100.5 mg/L | 8.6 ppt | 🟡 Moderately Hard | reservoir |
| Lumberton, New Jersey | 82.5 mg/L | 7.6 ppt | 🟡 Moderately Hard | reservoir |
| Vincentown, New Jersey | 37 mg/L | 5 ppt | 🟢 Soft | reservoir |
| Willingboro, New Jersey | 73 mg/L | 7.1 ppt | 🟡 Moderately Hard | reservoir |
| Mount Laurel, New Jersey | 100.5 mg/L | 8.6 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Mount Holly compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mount Holly | 100.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Mount Holly's Water Unique?
Local geology and source profile
Mount Holly, New Jersey, in Burlington County — the Burlington County seat adjacent to Lumberton and Hainesport in south New Jersey — receives its water from New Jersey American Water, drawing from the Rancocas Creek and Rancocas System through the south New Jersey distribution.
The moderately hard 100.5 mg/L hardness and TDS of 203.6 mg/L reflect the Burlington County supply's moderate Coastal Plain character — the Cretaceous Raritan Formation and Quaternary Coastal Plain alluvium contribute calcareous mineral content from the New Jersey Pine Barrens Coastal Plain geological corridor (compare Lumberton NJ: 97/197 in Burlington County comparable; Hainesport NJ: 102/210 in Burlington County comparable; Mount Holly consistent moderate from the same Burlington County Rancocas Creek Cretaceous supply). The Rancocas watershed — Cretaceous Raritan Formation (slightly calcareous — primary hardness contributor), Quaternary Coastal Plain alluvium (calcareous — secondary contributor), and Quaternary Rancocas Creek alluvium (slightly calcareous — minor TDS).
At 100.5 mg/L with TDS 204, Mount Holly's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 8.6 ppt is elevated — a certified drinking water filter with PFAS removal is recommended. Review New Jersey American Water's annual water quality report.
Geology & Source: Mount Holly in Burlington County draws from the New Jersey American Water on the Rancocas Creek supply (Burlington County, south New Jersey) — the Rancocas watershed drains Cretaceous Raritan Formation (slightly calcareous) and Quaternary Coastal Plain alluvium (calcareous) — New Jersey Burlington County Rancocas Creek Cretaceous supply produces moderately hard water at 100.5 mg/L with TDS 203.6 mg/L.