New Castle Water Hardness & Quality Report (2026)
Water Hardness
10.4 grains per gallon
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
421.2 mg/L
Est. Daily Cost
$0.47
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 New Castle, your appliances are currently losing 24% efficiency due to mineral buildup.
| Appliance | In New Castle | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.7 yrs | 8.5 yrs | -56% |
| Washing Machine | 7 yrs | 12 yrs | -42% |
| Water Heater | 8.5 yrs | 15 yrs | -43% |
Regional Water Comparison
How New Castle compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ New Castle, Pennsylvania | 178 mg/L | 9.4 ppt | 🟠 Hard | reservoir |
| Hermitage, Pennsylvania | 204.5 mg/L | 10.8 ppt | 🔴 Very Hard | reservoir |
| Sharon, Pennsylvania | 84.5 mg/L | 4.5 ppt | 🟡 Moderately Hard | reservoir |
| Boardman, Ohio | 143.5 mg/L | 5.6 ppt | 🟠 Hard | river |
| Youngstown, Ohio | 230.5 mg/L | 9.1 ppt | 🔴 Very Hard | river |
National Benchmark
How New Castle compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ New Castle | 178 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes New Castle's Water Unique?
Local geology and source profile
New Castle, Pennsylvania, in Lawrence County at the Shenango River — the Lawrence County seat with a proud steel and metal manufacturing heritage as the former hub of the specialty steel industry in western Pennsylvania — receives its municipal water from Pennsylvania American Water Company (PAWC), which draws from the Shenango River or the Lake Wilhelm reservoir system on the Shenango watershed in western Pennsylvania. Pennsylvania American Water operates water treatment facilities serving the New Castle area through its western Pennsylvania division.
The moderately hard 178 mg/L hardness and TDS of 421.2 mg/L reflect the Shenango River's watershed geology on the Allegheny Plateau. The Shenango River originates in southeastern Ohio and drains the Allegheny Plateau of western Pennsylvania — Pennsylvanian-age cyclothemic rock sequences (the Allegheny, Pottsville, and Monongahela formations of Pennsylvanian coal measures) consisting of alternating shale, sandstone, siltstone, and carbonaceous coal beds. While coal-measure shales are not carbonate rocks, their weathering and the associated Pennsylvanian limestone lenses in the cyclothems contribute moderate dissolved mineral content. Additionally, acid mine drainage (from Lawrence County's legacy coal mining) adds dissolved iron, sulfate, and other ions, contributing to the elevated TDS.
At 178 mg/L, New Castle's water is moderately hard — consistent with the western Pennsylvania river supply profile. Scale builds in kettles and coffee machines over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is appropriate. The elevated PFAS level of 9.4 ppt warrants a certified drinking water filter — Lawrence County's steel and specialty metal manufacturing history, the Shenango River's industrial corridor from Youngstown Ohio through western Pennsylvania, and the regional Pennsylvania-Ohio Mahoning-Shenango industrial valley contribute to a serious PFAS contamination profile in the New Castle water supply.
Geology & Source: New Castle in Lawrence County draws from Pennsylvania American Water treating the Shenango River or Lake Wilhelm reservoir — the Shenango River drains the Allegheny Plateau (Pennsylvanian-age shale, sandstone, and coal measures) of western Pennsylvania — Allegheny Plateau carboniferous and shale drainage produces moderately hard water at 178 mg/L with TDS 421 mg/L in this Lawrence County steel-heritage city.