About us

Dual builder-operator expertise and specialized services to give your water treatment facility enhanced flexibility and competitive performance

We provide a complete range of solutions for designing, building and managing your water treatment facilities to the highest standards. We also offer operation and maintenance, as well as custom services. Drawing strength from our expertise in the sectors that specifically concern you, our services lock into the specifics of your sites and constantly strive to improve your water cycle.

Surface water sources, such as lakes and reservoirs, typically require more complex treatment because they are exposed to the natural environment. Treatment for water from groundwater wells varies.

All of our water, whether it comes from surface water or groundwater sources, is disinfected to protect you from waterborne diseases. Disinfection of drinking water has made many once-common diseases, like typhoid and cholera, a thing of the past in the United States and other developed countries.

Cal Water doesn’t take a “one-size-fits-all” approach to water treatment; instead, we work diligently to identify the best, most cost-effective treatment required for each water source. In some areas, we operate very sophisticated facilities, including microfiltration, advanced oxidation, and ultraviolet units; in other areas, we use very simple, straightforward treatment techniques, such as granular-activated carbon filtration.

Chlorine is a common disinfectant used to treat the water. If you detect a chlorine taste or smell in your water, try refrigerating it before drinking. Chloramine is another type of disinfectant used in some areas. More data can be found in your annual water quality report.

The specialist for process water and industrial wastewater treatment

Our engineers design innovative water treatment systems using your individual requirements as a blueprint, from simple refurbishments through to completely new facilities. They provide every support in choosing, designing and building your facilities to produce the expected technical performance levels, while taking account of your investments, business model and local legal requirements. We specialize in incorporating existing water treatment processes or designing new processes to guarantee the solution best suited to your requirements: