Middletown, PA water hardness
Reported by City of Bethlehem · September 2025
- PA typical
- 127 mg/L
- EPA health violations since 2016
- 0
- Data
- Utility report
The water in Middletown carries roughly 57 mg/L of dissolved calcium and magnesium, or 3.4 grains per gallon. That is soft water. The number comes from City of Bethlehem, dated September 2025. Reports for this system disagree, with values from 46 to 57 mg/L.
Middletown sits 70 mg/L below the typical Pennsylvania figure of 127. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 30 mg/L in Progress to 255 in Elizabethtown.
What 57 mg/L means at home
Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.
Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.
Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.
What to do about it
Nothing, as far as hardness goes. At 57 mg/L a softener would have almost nothing to remove.
Carbon filter
If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.
EPA record for Middletown's water system
No health-based violations since 2016
Serves about 117,259 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 45
- Open now
- 0
TapWaterData ties Middletown to this system. EPA's service-area records do not name Middletown, so check the utility printed on your water bill.
Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.
Questions
Is Middletown water hard?
No. It measures about 57 mg/L (3.4 grains per gallon), which the USGS classes as soft.
What is the water hardness in Middletown in grains per gallon?
About 3.4 gpg. One grain per gallon equals 17.1 mg/L, so 57 mg/L divided by 17.1 gives 3.4.
Has the Middletown water system had EPA violations?
EPA records show no health-based violations for City of Bethlehem since 2016. There were also 45 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Elizabethtown255 mg/LVery hard
- New Cumberland128 mg/LHard
- Progress30 mg/LSoft
- Lower Allen128 mg/LHard
- Harrisburg40 mg/LSoft
- Camp Hill128 mg/LHard
- Enola128 mg/LHard
- Mount Joy93 mg/LModerately hard
- Mechanicsburg120 mg/LModerately hard
- Shiloh83 mg/LModerately hard
All 172 cities in Pennsylvania
Hardness data: TapWaterData US Water Hardness (utility report, September 23, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.