Williamsport Water Hardness & Quality Report (2026)
Water Hardness
5.7 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
157.2 mg/L
Est. Daily Cost
$0.26
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 Williamsport, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Williamsport | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.4 yrs | 8.5 yrs | -25% |
| Washing Machine | 10 yrs | 12 yrs | -17% |
| Water Heater | 11.7 yrs | 15 yrs | -22% |
Regional Water Comparison
How Williamsport compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Williamsport, Pennsylvania | 97 mg/L | 4.9 ppt | 🟡 Moderately Hard | reservoir |
| Bloomsburg, Pennsylvania | 100 mg/L | 5.1 ppt | 🟡 Moderately Hard | reservoir |
| Elmira, New York | 78 mg/L | 4 ppt | 🟡 Moderately Hard | reservoir |
| Colonial Park, Pennsylvania | 178.5 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
| State College, Pennsylvania | 193 mg/L | 10.1 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Williamsport compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Williamsport | 97 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Williamsport's Water Unique?
Local geology and source profile
Williamsport, Pennsylvania, the Lycoming County seat — a major north central Pennsylvania Susquehanna Valley city (Williamsport is the Lycoming County seat and one of the most historically significant small cities in Pennsylvania — the 'Lumber Capital of the World' in the late 19th century (the Susquehanna River log drives and Williamsport's massive lumber operations made it one of the wealthiest cities per capita in the United States in the 1880s; the 'Millionaires Row' — now Park Avenue — had more millionaires per mile than any street in the world during the lumber boom); Williamsport is the birthplace of Little League Baseball (the first Little League game was played in Williamsport in 1939; Williamsport is home of the Little League Baseball International headquarters and the annual Little League World Series (one of the most beloved youth sports tournaments in the world — held in South Williamsport each August)), a diverse Lycoming County community with a significant working-class and Appalachian heritage population — draws its municipal water supply from the West Branch Susquehanna River via the Williamsport Municipal Water Authority. Water hardness in Williamsport measures 97 mg/L — classified as moderately soft.
Williamsport's moderate softness reflects the north central Pennsylvania Appalachian Plateau Susquehanna watershed's calcareous-poor Devonian geology. The West Branch Susquehanna drains the Devonian Catskill and Chemung Groups (calcareous-poor). Williamsport Municipal Water treatment produces the moderately soft 97 mg/L.
With hardness at 97 mg/L, Williamsport residents enjoy moderately soft water. Williamsport Municipal Water Authority consistently delivers water meeting all Pennsylvania DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the West Branch Susquehanna River via the Williamsport Municipal Water Authority — the Lycoming County north central Pennsylvania Susquehanna Valley Williamsport corridor (Devonian calcareous-poor Catskill and Chemung Groups — the calcareous-poor north central Pennsylvania Appalachian Plateau Susquehanna watershed; effective treatment); moderately soft supply at 97 mg/L in Lycoming County.