State College Water Hardness & Quality Report (2026)
Water Hardness
11.3 grains per gallon
Source
reservoir
pH Level
8.3
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
477.6 mg/L
Est. Daily Cost
$0.51
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 State College, your appliances are currently losing 26% efficiency due to mineral buildup.
| Appliance | In State College | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.2 yrs | 8.5 yrs | -62% |
| Washing Machine | 6.5 yrs | 12 yrs | -46% |
| Water Heater | 7.9 yrs | 15 yrs | -47% |
Regional Water Comparison
How State College compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ State College, Pennsylvania | 193 mg/L | 10.1 ppt | 🔴 Very Hard | reservoir |
| Altoona, Pennsylvania | 90 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Chambersburg, Pennsylvania | 131 mg/L | 6.8 ppt | 🟠 Hard | reservoir |
| Carlisle, Pennsylvania | 84.5 mg/L | 4.3 ppt | 🟡 Moderately Hard | reservoir |
| Saint Marys, Pennsylvania | 140.5 mg/L | 7.3 ppt | 🟠 Hard | reservoir |
National Benchmark
How State College compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ State College | 193 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes State College's Water Unique?
Local geology and source profile
State College, Pennsylvania, the Centre County seat — the home of Penn State University (Pennsylvania State University, the flagship Pennsylvania land-grant university with the largest alumni network in the US, home of Beaver Stadium — one of the largest stadiums in the world, the Penn State Nittany Lions, and Penn State's nationally ranked engineering and agricultural programs), and one of the most recognized college towns in the United States — draws its municipal water supply from Spring Creek and Nittany Valley karst springs via the State College Borough Water Authority (SCBWA). Water hardness in State College measures 193 mg/L — classified as hard.
State College's hard supply reflects the Nittany Valley's highly calcareous dolomite karst geology. Spring Creek and the Nittany Valley springs drain the Nittany Valley — a classic Valley and Ridge Province karst valley underlain by: the Ordovician Nittany Dolomite (highly calcareous dolomite — the dominant Nittany Valley formation, a pure dolomite formation producing among the highest dissolved magnesium and calcium concentrations in Pennsylvania); the Ordovician Bellefonte Dolomite (calcareous dolomite); and the Cambrian Gatesburg Formation (calcareous dolomite and limestone). The Nittany Dolomite karst spring dissolution produces the hard 193 mg/L.
At 193 mg/L, State College residents face regular hard water challenges. Monthly descaling with citric acid solution is standard maintenance. SCBWA consistently delivers water meeting all Pennsylvania DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from the Spring Creek (Nittany Valley karst springs) and State College Borough Water Authority (SCBWA) via the State College Borough Water Authority — the Centre County Pennsylvania Nittany Valley (Ordovician calcareous Nittany Dolomite and Bellefonte Dolomite — the Nittany Valley highly calcareous karst); hard supply at 193 mg/L — reflecting the Nittany Valley dolomite karst's significant calcareous dissolution.