Fair Oaks Water Hardness & Quality Report (2026)

Fair Oaks, California, an unincorporated community in Sacramento County — a major east Sacramento suburban community (Fair Oaks is a significant unincorporated Sacramento County community — an established east Sacramento suburb along the American River, known for its historic downtown Fair Oaks Village (a quaint pedestrian-scale village center with specialty shops and restaurants — one of the most charming historic village centers in the Sacramento suburbs), the Fair Oaks Chicken (the famous semi-feral chickens that have roamed Fair Oaks Village for decades — a beloved quirky local tradition)), a diverse Sacramento County community with a primarily working-class and middle-class suburban professional population, adjacent to the American River Parkway (one of the most important urban greenways in California — over 20 miles of American River trail, bikeway, and riparian preserve), and one of the established Sacramento east suburban communities — draws its municipal water supply from the American River (Folsom Lake) via the Fair Oaks Water District. Water hardness in Fair Oaks measures 125.5 mg/L — classified as moderately hard.

Fair Oaks's moderate hardness reflects the American River watershed supply with some treatment variation. The American River at Fair Oaks–Sacramento County drains the Sierra Nevada granite and metamorphic (calcareous-poor) but distribution through Sacramento County mains (including some groundwater blending) produces the moderate 125.5 mg/L.

At 125.5 mg/L, Fair Oaks residents encounter moderate scale accumulation. Monthly cleaning is recommended. Fair Oaks Water District consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.