Anchorage vs Sitka Water Quality
Side-by-side water quality comparison for two Alaska cities.
If you are comparing Anchorage and Sitka water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Anchorage has somewhat harder water at 35 PPM versus Sitka at 8 PPM, a difference of 27 PPM. Sitka residents generally do not need any water softening equipment.
Water sources and why they differ
Water sources differ: Anchorage draws from Eklutna Lake + Ship Creek, while Sitka uses Blue Lake & Indian River. Both use similar source types, but local geology creates the hardness variation.
Contaminant concerns
PFAS contamination is a concern in Anchorage (15.13 ppt, above the EPA limit of 4 ppt). 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 | Anchorage | Sitka |
|---|---|---|
| Hardness | 35 PPM | 8 PPM |
| GPG | 2 | 0.5 |
| TDS | 50 PPM | 14 PPM |
| PFAS | 15.13 ppt | 0 ppt |
| Lead | 1.6 ppb | 13 ppb |
| Chlorine | 0.5 mg/L | 1 mg/L |
| Level | Slightly Hard | Soft |