Herndon vs Stafford Water Quality
Side-by-side water quality comparison for two Virginia cities.
If you are comparing Herndon and Stafford water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Herndon has somewhat harder water at 110 PPM versus Stafford at 100 PPM, a difference of 10 PPM. Stafford has moderate hardness where a softener is optional.
Water sources and why they differ
Water sources differ: Herndon draws from Potomac River (Fairfax Water), while Stafford uses Aquia Creek + Potomac. Both use similar source types, but local geology creates the hardness variation.
Contaminant concerns
PFAS contamination is a concern in both cities. A reverse osmosis system or NSF P473-certified filter is recommended for drinking water.
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 | Herndon | Stafford |
|---|---|---|
| Hardness | 110 PPM | 100 PPM |
| GPG | 6.4 | 5.8 |
| TDS | 185 PPM | 170 PPM |
| PFAS | 12.5 ppt | 11.23 ppt |
| Lead | 0.4 ppb | 1.8 ppb |
| Chlorine | 1.4 mg/L | 1.3 mg/L |
| Level | Moderately Hard | Moderately Hard |