The type of backflow prevention assembly installed must be the same type specified by the local Cross-Connection Control Specialist. Installations that provide a lessor level of protection will be rejected.
Water Quality Reports
Annual Consumer Confidence Reports detailing water quality, supply sources, and compliance with health standards for each district, to provide transparency and customer confidence in their water service.
Explore Reports
Water Treatment
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.
Discover Rebates
Water Quality Testing Labs
Cal Water conducts extensive water quality testing at its state-of-the-art laboratory but does not test water inside customers’ homes; for home testing.
Learn More About our Labs