Horsham Water Hardness & Quality Report (2026)
Water Hardness
7.4 grains per gallon
Source
reservoir
pH Level
7.8
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
234.7 mg/L
Est. Daily Cost
$0.34
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 Horsham, your appliances are currently losing 17% efficiency due to mineral buildup.
| Appliance | In Horsham | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.4 yrs | 8.5 yrs | -36% |
| Washing Machine | 8.9 yrs | 12 yrs | -26% |
| Water Heater | 10.6 yrs | 15 yrs | -29% |
Regional Water Comparison
How Horsham compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Horsham, Pennsylvania | 126 mg/L | 6.4 ppt | 🟠 Hard | reservoir |
| Willow Grove, Pennsylvania | 100.5 mg/L | 5 ppt | 🟡 Moderately Hard | reservoir |
| Abington, Pennsylvania | 207.5 mg/L | 10.7 ppt | 🔴 Very Hard | reservoir |
| Fox Chase, Pennsylvania | 183.5 mg/L | 9.4 ppt | 🔴 Very Hard | reservoir |
| West Oak Lane, Pennsylvania | 195 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Horsham compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Horsham | 126 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Horsham's Water Unique?
Local geology and source profile
Horsham, Pennsylvania, in Montgomery County — a Montgomery County township adjacent to Hatboro and Ambler in southeast Pennsylvania — receives its water from the North Wales Water Authority or local utilities, drawing from the North Branch Neshaminy Creek and local reservoirs (Montgomery County) through the southeast Pennsylvania distribution.
The moderately hard 126 mg/L hardness and TDS of 234.7 mg/L reflect the southeast Pennsylvania Neshaminy Creek supply's moderate Triassic calcareous character — consistent with other north Montgomery County communities (Hatboro: ~125 mg/L; Lansdale: ~128 mg/L). The Neshaminy Creek at Montgomery County drains the Triassic Gettysburg-Newark Basin — Triassic Stockton Formation (calcareous arkose sandstone — primary hardness contributor), Triassic Brunswick Formation (calcareous redbed — secondary contributor), and Precambrian Reading Prong crystalline (insoluble). The Triassic calcareous sediment produces the moderately hard southeast Pennsylvania supply.
At 126 mg/L, Horsham's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 6.4 ppt warrants a certified drinking water filter — Naval Air Station Willow Grove (Montgomery County — AFFF, directly at Horsham and one of the largest Pennsylvania PFAS contamination sites) contributes directly to Horsham's readings.
Geology & Source: Horsham in Montgomery County draws from the North Wales Water Authority on the North Branch Neshaminy Creek and local reservoir (Montgomery County, southeast Pennsylvania) — the Neshaminy drains the Triassic Stockton Formation (calcareous) and Precambrian crystalline basement (insoluble) — Pennsylvania Montgomery County Neshaminy Creek Triassic calcareous watershed produces moderately hard water at 126 mg/L with TDS 234.7 mg/L.