Alameda County Water District


Water Hardness Information



Click here for the latest Water Quality Report

In addition to analyzing your drinking water to ensure its safety, ACWD responds to water quality questions from its customers as well. Many of these questions deal with water hardness. To help you understand a little more about water hardness and what it means, we’ve answered some common questions about this popular topic here.




BUSINESS HOURS:
8 a.m. to 5 p.m. Monday — Friday (except holidays)
(510) 668-4200

Driving Directions

MAILING ADDRESS:
Alameda County Water District
43885 S. Grimmer Blvd.
Fremont, CA 94538