Household water treatment in Livermore, CA.

Livermore is split between two utilities: Cal Water's Livermore District, with about 18,600 connections, and Livermore Municipal Water. Both are supplied by Zone 7, and Cal Water adds groundwater from seven local wells.

Two utilities, one Zone 7 supply in Livermore

Cal Water's 2025 report for Livermore puts its local well water at 315 ppm hardness, alongside Zone 7 surface water at 88 ppm. Zone 7's own 2025 report says about 78% of what it delivered was treated surface water and 22% groundwater, all chloraminated. Which utility bills you decides where we start.

The way we work does not change from house to house. We look up the public data on your water, tell you what your home actually needs, and put it in for one all-in price.

What we fit in Livermore homes

• A softener and carbon filter for the whole house, fitted on your main line, as the flagship bundle starting at $2,699 installed.
• Reverse osmosis under the sink for drinking water, and the part of the setup that deals with PFAS.

Done locally

In Livermore we confirm whether you are a Cal Water or a city customer, then fit the system where your main line enters the house.