West Norriton Water Hardness & Quality Report (2026)
Water Hardness
11.4 grains per gallon
Source
reservoir
pH Level
8.3
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
481.3 mg/L
Est. Daily Cost
$0.52
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 West Norriton, your appliances are currently losing 26% efficiency due to mineral buildup.
| Appliance | In West Norriton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.2 yrs | 8.5 yrs | -62% |
| Washing Machine | 6.4 yrs | 12 yrs | -47% |
| Water Heater | 7.8 yrs | 15 yrs | -48% |
Regional Water Comparison
How West Norriton compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ West Norriton, Pennsylvania | 195 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
| Norristown, Pennsylvania | 203.5 mg/L | 10.5 ppt | 🔴 Very Hard | reservoir |
| King of Prussia, Pennsylvania | 91 mg/L | 4.5 ppt | 🟡 Moderately Hard | reservoir |
| East Norriton, Pennsylvania | 110.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | reservoir |
| Radnor, Pennsylvania | 141 mg/L | 7.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How West Norriton compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Norriton | 195 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes West Norriton's Water Unique?
Local geology and source profile
West Norriton, Pennsylvania, in Montgomery County — a Montgomery County township adjacent to Norristown and King of Prussia in southeast Pennsylvania — receives its water from the Norristown Municipal Water Authority, drawing from the Schuylkill River (Montgomery County) through the southeast Pennsylvania distribution.
The very hard 195 mg/L hardness and TDS of 481.3 mg/L reflect the southeast Pennsylvania Schuylkill River supply's very hard character — nearly identical to the Philadelphia Schuylkill supply (Grays Ferry: 198 mg/L) — reflecting the Schuylkill River's consistent calcareous character across the entire Norristown-Philadelphia corridor. The Schuylkill River at Norristown drains the Reading Prong and Triassic Basin — Triassic Stockton Formation (calcareous arkose — primary hardness contributor), Cambrian Conestoga Limestone (calcareous — secondary contributor), and Precambrian Reading Prong Gneiss (insoluble dilutant). The Triassic and Cambrian calcareous formations produce the very hard southeast Pennsylvania supply.
At 195 mg/L with TDS 481, West Norriton's water is very hard. A water softener is strongly recommended. Scale builds rapidly on all surfaces, appliance lifespans are significantly shortened, and water heaters require annual descaling. The PFAS level of 10.0 ppt warrants a certified reverse osmosis drinking water filter — Naval Air Station Willow Grove (Montgomery County — AFFF, the dominant Montgomery County PFAS source) and the Schuylkill River PFAS industrial corridor contribute to West Norriton's very elevated readings.
Geology & Source: West Norriton in Montgomery County draws from the Norristown Municipal Water Authority on the Schuylkill River (Montgomery County, southeast Pennsylvania) — the Schuylkill at Norristown drains the Reading Prong (Triassic Stockton Formation — calcareous, Cambrian Conestoga Limestone — calcareous) — Pennsylvania Montgomery County Schuylkill River Triassic-Cambrian calcareous watershed produces very hard water at 195 mg/L with TDS 481.3 mg/L.