Why Northern Arizona Water Runs Hard
Every community we serve draws from groundwater that has spent years moving through limestone and sedimentary rock, dissolving calcium and magnesium along the way. Hardness is not a federally regulated contaminant, so many utilities never publish a number for it at all. What is published tells the story: the City of Prescott reports its water as moderately hard at roughly 4.3 to 7.6 grains per gallon, while Cottonwood's all-groundwater supply and Sedona's run harder, and private wells outside the city systems harder still.





