FAQs • Rancho California Water District, CA • CivicEngage

Why do I need a backflow device?: The primary objective of the backflow device is the protection of public health by ensuring that the water delivered to our customers is kept from harmful contaminants. Commercial, industrial, agricultural, and ag-domestic properties require backflow protection, or the District can require one to be installed if a hazard is present that warrants it.

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Cross-Connection & Backflow Prevention

1. Why do I need a backflow device?: The primary objective of the backflow device is the protection of public health by ensuring that the water delivered to our customers is kept from harmful contaminants. Commercial, industrial, agricultural, and ag-domestic properties require backflow protection, or the District can require one to be installed if a hazard is present that warrants it.

2. What regulations govern backflow devices?: Currently, the State Water Resources Control Board (SWRCB) regulates backflow devices through Title 17 of the California Regulations Related to Drinking Water. This will soon be replaced by the SWRCB’s Cross-Connection Control Policy Handbook. The Universal Plumbing Code, in addition, outlines the regulations for backflow devices.

3. Where do I get a backflow device?: Backflow devices are readily available online or at local irrigation/plumbing supply stores.

4. What type of device do I need?: The device needed will depend on the degree of hazard determined by the District through a site survey. Any device must be on the USC list of approved backflow assemblies. This list can be found at: https://fccchr.usc.edu/list.html

5. Who can install a backflow device?: Anyone can install a device; however, District approved Certified Testers are responsible for performing accurate tests, and repairing or replacing devices that fail. Additionally, testers must report all repairs and test results to Rancho Water. The tester is required to give a copy of the completed test report to the customer and email a copy to BACKFLOW@RANCHOWATER.COM. A list of approved backflow testing companies can be found here.

6. How can I protect the backflow device against theft and vandalism?: By installing cages, decorative rock covers, or blending it with shrubbery around the device. Be sure to leave 24 inches of clearance for annual testing. Painting the device may be an option. This can deter thieves since it devalues the metal. If painting the device, do not paint over the serial number/information plate.