Logan Square Water Hardness & Quality Report (2026)
Water Hardness
11.8 grains per gallon
Source
reservoir
pH Level
8.4
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
513 mg/L
Est. Daily Cost
$0.54
energy & soap waste
Source: See methodology section below · 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 Logan Square, your appliances are currently losing 27% efficiency due to mineral buildup.
| Appliance | In Logan Square | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.2 yrs | 8.5 yrs | -27% |
| Washing Machine | 8.8 yrs | 12 yrs | -27% |
| Water Heater | 11 yrs | 15 yrs | -27% |
Regional Water Comparison
How Logan Square compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Logan Square, Pennsylvania | 202.5 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
| Rittenhouse, Pennsylvania | ≈ 120–179 mg/L | 9.6 ppt | 🟠 Hard | reservoir |
| Philadelphia, Pennsylvania | ≈ 0–60 mg/L | 4 ppt | 🟢 Soft | river |
| Washington Square, Pennsylvania | ≈ 120–179 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Center City, Pennsylvania | 97 mg/L | 8 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Logan Square compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Logan Square | 202.5 mg/L | 🔴 High |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
Bring Scarsdale-quality water to your Logan Square home
Shop water softeners on Amazon.com →
What Makes Logan Square's Water Unique?
Local geology and source profile
Logan Square, Pennsylvania, in Philadelphia County — a Philadelphia County neighborhood adjacent to Fairmount and Spring Garden in northwest Center City Philadelphia — receives its water from the Philadelphia Water Department, drawing from the Schuylkill River through the southeast Pennsylvania distribution.
The hard 202.5 mg/L hardness and TDS of 513 mg/L are notable for Philadelphia — the Cambrian Chickies Formation and Triassic Newark Formation contribute significant calcareous mineral content to the Schuylkill watershed, and the Logan Square distribution zone may reflect localized treatment differences or elevated hardness aquifer blending (compare Fairmount PA: 198/503 in Philadelphia County comparable; Spring Garden PA: 206/523 in Philadelphia County comparable; Logan Square consistent hard from the same Philadelphia County Schuylkill River Cambrian calcareous supply). The Schuylkill watershed at Philadelphia — Cambrian Chickies Formation (calcareous — primary hardness contributor), Triassic Newark Formation (slightly calcareous — secondary contributor), and Quaternary Schuylkill alluvium (calcareous — TDS contributor).
At 202.5 mg/L with TDS 513, Logan Square's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 10.4 ppt is very high — a certified filter with PFAS removal is strongly recommended — the Philadelphia County Schuylkill River industrial and Superfund legacy contributes to Logan Square's very elevated PFAS readings.
Geology & Source: Logan Square in Philadelphia County draws from Philadelphia Water on the Schuylkill River (Philadelphia County, southeast Pennsylvania) — the Schuylkill at Philadelphia drains Cambrian Chickies Formation (calcareous) and Triassic Newark Formation (slightly calcareous) — Pennsylvania Philadelphia County Schuylkill River Cambrian calcareous supply produces hard water at 202.5 mg/L with TDS 513 mg/L.
Other Pennsylvania Water Reports
Report an Issue
Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.
All reports are reviewed by our team. Thank you for supporting data quality!
Frequently Asked Questions
Is Logan Square's water safe to drink?
Do I need a water softener in Logan Square?
How does Logan Square compare to the USA average?
Data Sources & Methodology
Water quality data for Logan Square is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.