Water hardness, which primarily means the concentration of dissolved substances like calcium and magnesium, can greatly differ across Pennsylvania. The commonwealth, situated towards the eastern seaboard, often experiences varied water hardness levels, unlike regions such as the Midwest which are prone to higher hardness levels.
Concentrating on Pennsylvania, the specific hardness measurements gathered from several towns and cities show an inclination towards moderate to high hardness levels, compared to the national average. As such, Pennsylvania’s water is generally classified in the ‘moderate to hard’ category. This feature has significant implications in areas such as the water’s taste and the effectiveness of cleaning substances like soaps and detergents. It is worth noting that these hardness levels can vary and are subject to change based on local geological conditions and differences in water sources.
The cities analyzed in this dataset exhibit varied hardness levels in their water supplies, determined in Parts Per Million (ppm) and Grains Per Gallon (gpg). Cities such as Allentown, Lancaster, and Wilson, report particularly high hardness levels, surpassing 250 ppm, or 14.60 gpg. Conversely, cities with lower hardness levels include Pittsburgh, Scranton, York, Wilkes-Barre, and Hazleton, which display hardness levels below 100 ppm, or 5.84 gpg. Several cities such as Reading, Erie, Bethlehem, Hermitage, Franklin Park, and many others do not provide data for water hardness.
City | Hardness ppm (mg/L) | Hardness gpg | Information Source | Notes |
Philadelphia | 133.0 | 7.6 | Link | |
Pittsburgh | 93.0 | 5.4 | Link | |
Allentown | 256.8 | 15.0 | Link | |
Reading | n/a | n/a | Link | |
Erie | n/a | n/a | Link | |
Scranton | 27.0 | 1.6 | Link | Two sources mentioned, used the Lake Scranton numbers because that is the lion’s share of the source. Groundwater is much harder per report, 110-450 ppm |
Bethlehem | n/a | n/a | Link | |
Lancaster | 188.3 | 11.0 | Link | Took median of range listed |
Harrisburg | n/a | n/a | Link | |
York | 89.0 | 5.2 | Link | |
Wilkes-Barre | 29.0 | 1.7 | Link | |
Altoona | n/a | n/a | Link | |
State College | 42.4 | 2.5 | Link | As Calcium |
Norristown | 153.0 | 9.0 | Link | |
Bethel Park | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Chester | 125.0 | 7.0 | Link | |
Hazleton | 22.5 | 1.3 | Link | |
Monroeville | n/a | n/a | Link | |
Easton | 58.0 | 3.4 | Link | |
Williamsport | n/a | n/a | Link | |
Plum | n/a | n/a | Link | |
Lebanon | n/a | n/a | Link | |
Pottstown | n/a | n/a | Link | |
Chambersburg | 10.0 | 0.5 | Link | |
New Castle | 123.0 | 7.2 | Link | |
Baldwin | 93.0 | 5.4 | Link | |
Murrysville | n/a | n/a | Link | |
Carlisle | 168.0 | 9.8 | Link | |
West Mifflin | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Phoenixville | 167.0 | 9.8 | Link | |
Lansdale | n/a | n/a | Link | |
West Chester | 125.0 | 7.0 | Link | |
Johnstown | n/a | n/a | Link | |
McKeesport | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Hanover | n/a | n/a | Link | |
Hermitage | n/a | n/a | Link | |
Franklin Park | n/a | n/a | Link | |
Greensburg | n/a | n/a | Link | |
Whitehall | 51.4 | 3.0 | Link | |
Wilkinsburg | n/a | n/a | Link | |
Dunmore | 27.0 | 1.6 | Link | Covered under Scranton |
Ephrata | 142.0 | 8.3 | Link | Took median of range |
Indiana | 102.0 | 6.0 | Link | |
Pottsville | n/a | n/a | Link | |
Kingston | 29.0 | 1.7 | Link | |
Coatesville | 77.0 | 4.5 | Link | |
Butler | 86.0 | 5.0 | Link | |
Washington | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Sharon | n/a | n/a | Link | |
Meadville | n/a | n/a | Link | |
St. Marys | n/a | n/a | Link | |
Bloomsburg | n/a | n/a | Link | |
Jefferson Hills | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
New Kensington | n/a | n/a | Link | |
Yeadon | n/a | n/a | Link | Aqua PA Main System Which Serves Philly suburbs |
Lower Burrell | n/a | n/a | Link | Covered by New Kensington |
Emmaus | n/a | n/a | Link | |
Elizabethtown | n/a | n/a | Link | |
Wyomissing | n/a | n/a | Link | |
Lansdowne | n/a | n/a | Link | Aqua PA Main System Which Serves Philly suburbs |
Waynesboro | n/a | n/a | Link | |
Darby | n/a | n/a | Link | Aqua PA Main System Which Serves Philly suburbs |
Munhall | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Nanticoke | 29.0 | 1.7 | Link | |
Northampton | n/a | n/a | Link | |
Berwick | 227.0 | 13.3 | Link | |
Columbia | 94.0 | 5.5 | Link | |
Brentwood | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
East Stroudsburg | n/a | n/a | Link | |
Bristol | n/a | n/a | Link | |
Uniontown | 78.9 | 4.6 | Link | |
Morrisville | n/a | n/a | Link | |
Canonsburg | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Sunbury | n/a | n/a | Link | |
Middletown | n/a | n/a | Link | |
Lititz | n/a | n/a | Link | |
Mechanicsburg | 192.0 | 11.1 | Link | |
Oil City | n/a | n/a | Link | |
Quakertown | n/a | n/a | Link | |
Conshohocken | 153.0 | 9.0 | Link | Covered under Norristown in zip code |
Warren | 79.0 | 4.6 | Link | |
Perkasie | n/a | n/a | Link | Report mentions hardness, but doesn’t quantify |
Aliquippa | n/a | n/a | Link | |
Economy | n/a | n/a | ||
Beaver Falls | 147.0 | 8.6 | Link | Covered under Ellwood City in zip code |
Collingdale | n/a | n/a | Link | Aqua PA Main System Which Serves Philly suburbs |
Carbondale | 23.5 | 1.4 | Link | Covered under Forest City in zip code, took average of range |
Jeannette | n/a | n/a | Link | |
Old Forge | 30.5 | 1.8 | Link | Sources from NEsbitt Reservoir |
Lewistown | n/a | n/a | Link | |
Swissvale | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Pleasant Hills | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Mount Joy | n/a | n/a | Link | |
Castle Shannon | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
Doylestown | n/a | n/a | Link | Two different reports, neither has hardness |
Lock Haven | 132.0 | 7.7 | Link | |
Hatboro | n/a | n/a | Link | |
Brookhaven | 125.0 | 7.0 | Link | |
Wilson | 250.0 | 14.6 | Link | Gets water from New Jersey across the Delaware River |
Bellevue | 93.0 | 5.4 | Link | Part of greater Pittsburgh per zip code |
ppm = Parts Per Million
mg/L = Milligrams Per Liter
gpg = Grains Per Gallon
Hard water can cause issues such as mineral buildup in plumbing and appliances, reduce the efficacy of soaps and detergents, and affect the taste of the water. A tried and true solution is the use of a water softener. A water softener, like the ones from DROP, could be a worthwhile investment.
These devices work by replacing the calcium and magnesium ions that cause hardness with sodium ions, resulting in softer water. With innovative features, easy installation, and efficient operation, DROP smart water softeners provide a solution to hard water issues, extending the lifespan of appliances, improving water taste, enhancing soap effectiveness, reducing scale build-up, and increasing the overall water efficiency in your home.