Pasco vs Kennewick Water Quality
Side-by-side water quality comparison for two Washington cities.
If you are comparing Pasco and Kennewick water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Pasco has somewhat harder water at 100 PPM versus Kennewick at 95 PPM, a difference of 5 PPM. Kennewick has moderate hardness where a softener is optional.
Water sources and why they differ
Water sources differ: Pasco draws from Columbia River, while Kennewick uses Columbia River. Both use similar source types, but local geology creates the hardness variation.
Contaminant concerns
PFAS contamination is a concern in Kennewick (PFOA at 4.45 ppt and PFOS at 9.98 ppt, above the EPA limit of 4 ppt each). 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 | Pasco | Kennewick |
|---|---|---|
| Hardness | 100 PPM | 95 PPM |
| GPG | 5.8 | 5.6 |
| TDS | 151 PPM | 125 PPM |
| PFAS | 0 ppt | 42.89 ppt |
| Lead | 1.9 ppb | 1.9 ppb |
| Chlorine | 0.7 mg/L | 0.4 mg/L |
| Level | Moderately Hard | Moderately Hard |