Hagerstown vs Gaithersburg Water Quality
Side-by-side water quality comparison for two Maryland cities.
If you are comparing Hagerstown and Gaithersburg water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Hagerstown has somewhat harder water at 110 PPM versus Gaithersburg at 110 PPM, a difference of 0 PPM. Gaithersburg has moderate hardness where a softener is optional.
Water sources and why they differ
Water sources differ: Hagerstown draws from Antietam Creek & wells, while Gaithersburg uses Potomac River (WSSC). Both use similar source types, but local geology creates the hardness variation.
What this means for you
Not sure what your specific situation needs? Take the quiz to get a recommendation based on your water data, budget, and household size.
| Metric | Hagerstown | Gaithersburg |
|---|---|---|
| Hardness | 110 PPM | 110 PPM |
| GPG | 6.4 | 6.4 |
| TDS | 152 PPM | 185 PPM |
| PFAS | 0 ppt | 9.26 ppt |
| Lead | 0.8 ppb | 1.1 ppb |
| Chlorine | 0.7 mg/L | 1.4 mg/L |
| Level | Moderately Hard | Moderately Hard |
FAQ
Which has harder water, Hagerstown or Gaithersburg?
Hagerstown has harder water at 110 PPM compared to Gaithersburg at 110 PPM. That is a difference of 0 PPM.
Do I need a water softener if I move from Gaithersburg to Hagerstown?
Probably not. At 110 PPM, the water is manageable without a softener for most homes.
Is Gaithersburg water safe to drink?
Gaithersburg water meets EPA safety standards. No contaminants exceed health guidelines in our data.