Lansdowne Water Hardness & Quality Report (2026)
Water Hardness
5.9 grains per gallon
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
165.9 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 Lansdowne, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Lansdowne | 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 Lansdowne compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lansdowne, Pennsylvania | 101 mg/L | 5.1 ppt | 🟡 Moderately Hard | reservoir |
| Yeadon, Pennsylvania | 142 mg/L | 7.2 ppt | 🟠 Hard | reservoir |
| Drexel Hill, Pennsylvania | 160 mg/L | 8.2 ppt | 🟠 Hard | reservoir |
| Darby, Pennsylvania | 153.5 mg/L | 7.8 ppt | 🟠 Hard | reservoir |
| Cobbs Creek, Pennsylvania | 141.5 mg/L | 7.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Lansdowne compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lansdowne | 101 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lansdowne's Water Unique?
Local geology and source profile
Lansdowne, Pennsylvania, in Delaware County — a Delaware County borough adjacent to Upper Darby and Aldan in the west Philadelphia suburbs — receives its water from Aqua Pennsylvania, drawing from the Chester Creek supply through the southeast Pennsylvania distribution.
The moderately hard 101 mg/L hardness and TDS of 165.9 mg/L reflect the Delaware County supply's moderate Piedmont character — the Precambrian Wissahickon Formation provides insoluble metamorphic dilution, while the Cambrian Cockeysville Marble contributes calcareous mineral content from its marble and calcareous gneiss in the Pennsylvania Piedmont (compare Upper Darby PA: 98/159 in Delaware County comparable; Aldan PA: 103/172 in Delaware County comparable; Lansdowne consistent moderate from the same Delaware County Chester Creek Precambrian supply). The Chester Creek watershed — Precambrian Wissahickon Formation (insoluble — primary dilutant), Cambrian Cockeysville Marble (calcareous — primary hardness contributor), and Quaternary Chester Creek alluvium (slightly calcareous — minor TDS).
At 101 mg/L with TDS 166, Lansdowne's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 5.1 ppt warrants a certified drinking water filter. Review Aqua Pennsylvania's annual water quality report.
Geology & Source: Lansdowne in Delaware County draws from the Aqua Pennsylvania on the Chester Creek supply (Delaware County, southeast Pennsylvania) — the Chester Creek watershed draws from Precambrian Wissahickon Formation (insoluble) and Cambrian Cockeysville Marble (calcareous) — Pennsylvania Delaware County Chester Creek Precambrian supply produces moderately hard water at 101 mg/L with TDS 165.9 mg/L.