Montgomeryville Water Hardness & Quality Report (2026)
Water Hardness
6.5 grains per gallon
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
194.7 mg/L
Est. Daily Cost
$0.30
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 Montgomeryville, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Montgomeryville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.9 yrs | 8.5 yrs | -31% |
| Washing Machine | 9.5 yrs | 12 yrs | -21% |
| Water Heater | 11.1 yrs | 15 yrs | -26% |
Regional Water Comparison
How Montgomeryville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Montgomeryville, Pennsylvania | 112 mg/L | 5.6 ppt | 🟡 Moderately Hard | reservoir |
| Lansdale, Pennsylvania | 140.5 mg/L | 7.1 ppt | 🟠 Hard | reservoir |
| East Norriton, Pennsylvania | 110.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | reservoir |
| Horsham, Pennsylvania | 126 mg/L | 6.4 ppt | 🟠 Hard | reservoir |
| Norristown, Pennsylvania | 203.5 mg/L | 10.5 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Montgomeryville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Montgomeryville | 112 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Montgomeryville's Water Unique?
Local geology and source profile
Montgomeryville, Pennsylvania, in Montgomery County — a Montgomery County unincorporated community adjacent to North Wales and Lansdale in southeast Pennsylvania — receives its water from the North Penn Water Authority, drawing from the North Penn or Schuylkill River supply (Montgomery County) through the southeast Pennsylvania distribution.
The moderately hard 112 mg/L hardness and TDS of 194.7 mg/L reflect the southeast Pennsylvania Montgomery County North Penn supply's moderate character — softer than West Mount Airy PA (194.5/479) on the Philadelphia County supply, because Montgomeryville draws from the upper North Penn-Schuylkill supply where the Precambrian Wissahickon Schist dilution component is stronger before deep Cambrian dolomite contact. The North Penn-Schuylkill watershed at Montgomery County — Precambrian Wissahickon Schist (insoluble — primary dilutant), Cambrian Ledger Dolomite (dolomitic — hardness contributor), and Quaternary Schuylkill alluvium (slightly calcareous — minor TDS).
At 112 mg/L, Montgomeryville'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 5.6 ppt warrants a certified drinking water filter — the Montgomery County southeast Pennsylvania industrial corridor contribute to Montgomeryville's elevated readings.
Geology & Source: Montgomeryville in Montgomery County draws from the North Penn Water Authority on Schuylkill River supply (Montgomery County, southeast Pennsylvania) — the North Penn-Schuylkill watershed drains the Pennsylvania Piedmont (Precambrian Wissahickon Schist — insoluble) and Cambrian Ledger Dolomite (dolomitic) — Pennsylvania Montgomery County Schuylkill Precambrian-Cambrian dolomitic supply produces moderately hard water at 112 mg/L with TDS 194.7 mg/L.