Water hardness by state
How hard is the water in Pennsylvanie?
Tap water in Pennsylvanie averages 7.3 grains per gallon (124 ppm calcium carbonate). That number determines how fast limescale coats your water heater, shower glass and appliances.
Sur la base de 622 mesures issues de 177 points de surveillance, 2018-04 → 2023-12.
Dureté de l’eau par comté — Pennsylvanie
Médianes des mesures relevées dans chaque comté. La dureté varie beaucoup plus à l’intérieur d’un État qu’entre États voisins : c’est de là que vient réellement votre valeur.
| Comté | gpg | mg/L | Fourchette (mg/L) | Classification |
|---|---|---|---|---|
| Bucks County | 12.8 | 219 | 121–333 | Moderately hard water |
| Franklin County | 8.1 | 138 | 80–238 | Soft water |
| Bradford County | 8.2 | 140 | 49–212 | Soft water |
| Clinton County | 1.9 | 33 | 6–191 | Soft water |
| Chester County | 8.1 | 138 | 64–167 | Soft water |
| Lebanon County | 18 | 307 | 254–314 | Hard water |
| Potter County | 1.1 | 19 | 15–25 | Soft water |
| Carbon County | 1.2 | 21 | 19–24 | Soft water |
| Susquehanna County | 6.1 | 105 | 6–113 | Soft water |
| Allegheny County | 7.3 | 125 | 113–130 | Soft water |
| Wayne County | 5 | 86 | 3–96 | Soft water |
| Adams County | 10.6 | 182 | 0–198 | Moderately hard water |
La fourchette correspond aux 10e-90e centiles des mesures locales. Les comtés comptant moins de cinq mesures sont omis plutôt qu’estimés.
What 7.3 gpg means in Pennsylvanie
Soft water like this leaves little to no scale. Soap lathers easily, appliances stay clean and your water heater keeps its efficiency. Protection is optional — mostly useful if your utility occasionally blends in harder sources.
What it does to your home
Water heater: even a thin layer of scale insulates the heating element and drives energy use up.
Appliances: dishwashers, washing machines and coffee makers scale up and fail years early.
Fixtures and skin: white spots on faucets and glass, dry skin and dull hair after every shower.
Comment cette valeur a été obtenue
Median of the site-level medians at 177 groundwater monitoring sites (wells and springs — the sources most US public systems draw from) in the USGS National Water Information System (622 individual measurements, 2018-04 → 2023-12). Each site is collapsed to one value first so that a heavily sampled location cannot skew the state figure; the range shown is the 10th-90th percentile across sites. This describes the raw water resource, not a specific municipal tap after treatment.
Water Quality Portal — USGS National Water Information System (NWIS), characteristic "Hardness, Ca, Mg"Statewide average — hardness varies by utility and season. Always verify with your local water quality report.
Frequently asked questions — Pennsylvanie
Is 7.3 gpg considered hard water?
On the US scale, 0–3.5 gpg is soft, 3.5–7 gpg moderately hard, 7–10.5 gpg hard and above 10.5 gpg very hard. At 7.3 gpg (124 ppm), water in Pennsylvanie is classified as Soft water.
Does Pennsylvanie have a limescale problem?
Water in Pennsylvanie averages 7.3 gpg — Soft water. The harder the water, the faster calcium carbonate deposits build up in water heaters, appliances and pipes. Below 3.5 gpg the risk is minimal; above 7 gpg scale becomes a running cost.
How do I find the exact water hardness at my address in Pennsylvanie?
Check your utility's annual water quality report (Consumer Confidence Report) or your water bill, or use our free interactive hardness map. Hardness can vary widely between neighboring utilities in Pennsylvanie.
Do I need a salt-based water softener at 7.3 gpg?
Not necessarily. Salt softeners add sodium to your water and need constant refills. LIMPEO treats limescale with an electromagnetic field — no salt, no chemicals, no maintenance — and keeps healthy minerals in your drinking water.