Household water treatment in Dublin, CA.

Dublin is served by the Dublin San Ramon Services District, which buys all of its drinking water from Zone 7. In 2024 about 90% of it was imported surface water and about 10% groundwater.

What DSRSD reports for Dublin

The district's 2024 Annual Water Quality Report lists surface water hardness at 86 mg/L and groundwater at 309 mg/L, so Dublin's tap water sits closer to moderately hard than much of the South Bay. It is chloraminated at a running average of 2.0 mg/L, and sodium in the surface supply measured 56 mg/L.

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 Dublin 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 Dublin we fit the system wherever your main line enters the house, and because the supply is mostly surface water we size the softener to the blend, not the worst case.