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Own A Culligan® Reverse Osmosis Filter For Under $18/mo.

  • Introductory Rate of less than $18/mo.

What’s In Your San Marcos Water?

Get a FREE Water Test!

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  • Test any tap in your home
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The Proof

Why Do San Marcos
Homeowners LOVE Us?

Kathleen M.
Star Star Star Star Star

The installation was efficient, the workers were prompt, and the entire experience went smoothly. Everything was finished the first day we were new residents! I was exceedingly impressed and highly recommend Culligan of Escondido.

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Joy D.
Star Star Star Star Star

Great customer service, love the people here as they’re always super friendly, down to earth, and always willing to provide help as requested. The product has had no issues after several month

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Jim R.
Star Star Star Star Star

Service was great. They were fast and friendly. It is a joy to have cold/hot filtered water and not to have to buy cases of bottled water each week.

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Water Problems?

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The Best Water Softeners and Water Filters in San Marcos

With this combination of water resources, San Marcos water quality often faces our share of water filtration and treatment issues.

The City of San Marcos Water/Wastewater Utilities’ goal and responsibility is to provide you safe and reliable drinking water. Our drinking water is obtained from surface and ground water sources. Our ground water comes from the Edwards Aquifer (South BFZ) and our surface water comes from Canyon Lake. The sources of drinking water (both tap and bottled) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.

Is San Marcos Tap Water Safe To Drink?

Environmental Working Group detected 17 contaminants in Long Beach tap water where levels reached above their recommended guidelines. This includes arsenic, chloroform, chromium-6, HAA5, nitrates, radium, and TTHMs.

For a copy of your San Marcos water quality report, click here.