New Castle Water Hardness & Quality Report (2026)
Water Hardness
6.1 grains per gallon
Source
reservoir
pH Level
7.8
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
254 mg/L
Est. Daily Cost
$0.28
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 New Castle, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In New Castle | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.2 yrs | 8.5 yrs | -27% |
| Washing Machine | 9.8 yrs | 12 yrs | -18% |
| Water Heater | 11.4 yrs | 15 yrs | -24% |
Regional Water Comparison
How New Castle compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ New Castle, Pennsylvania | 104 mg/L | 0 ppt | 🟡 Moderately Hard | reservoir |
| Hermitage, Pennsylvania | 204.5 mg/L | 10.8 ppt | 🔴 Very Hard | reservoir |
| Struthers, Ohio | ≈ 120–179 mg/L | 8.9 ppt | 🟠 Hard | river |
| Sharon, Pennsylvania | ≈ 120–179 mg/L | 6 ppt | 🟠 Hard | reservoir |
| Boardman, Ohio | ≈ 120–179 mg/L | 5.6 ppt | 🟠 Hard | river |
National Benchmark
How New Castle compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ New Castle | 104 mg/L | 🟡 Low |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes New Castle's Water Unique?
Local geology and source profile
New Castle, Pennsylvania is served by PA American Water (PWS ID: 6370034), which operates the New Castle water system in Lawrence County. The utility sources water from the Shenango River and associated surface water supplies, treating it at local facilities before distribution to the community. The system consistently meets all state and federal drinking water standards, with no EPA violations recorded in recent compliance periods.
The Shenango River watershed drains the glaciated Appalachian Plateau of northwestern Pennsylvania, flowing through terrain underlain by Pennsylvanian-age sandstones, shales, and coal-bearing formations. Groundwater contributions and surface runoff pass through carbonate-rich glacial deposits and bedrock, dissolving calcium and magnesium minerals that create a moderately hard water supply (104 mg/L). This geological setting is typical of the region and produces water with moderate mineral content rather than the very soft supplies found in some eastern Pennsylvania areas.
At moderately hard levels, New Castle water may cause modest soap scum buildup, slight scaling in kettles and coffee makers, and gradual mineral accumulation in water heaters over years of use. Most household appliances tolerate this hardness without immediate problems, though a water softener is recommended for those concerned about appliance longevity. The 2025 Consumer Confidence Report confirms all state and federal requirements were met, with lead testing showing 0.006 mg/L — well below the 15 µg/L action level. Residents with specific concerns may contact PA American Water at 724.650.8843 or request the full annual CCR for detailed analytical results.
Geology & Source: Shenango River watershed, northwestern Pennsylvania — Pennsylvanian-age sandstones, shales, and coal measures of the Appalachian Basin; carbonate-bearing strata and glacial deposits dissolve calcium and magnesium, producing moderately hard supply
Other Pennsylvania Water Reports
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Frequently Asked Questions
Is New Castle's water safe to drink?
Do I need a water softener in New Castle?
How does New Castle compare to the USA average?
Data Sources & Methodology
Water quality data for New Castle 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.