Cross Connection Control (Backflow Prevention)

As part of Coastside County Water District’s commitment to delivering safe, reliable, high-quality water to our customers, the District maintains an effective Cross Connection Control Program. This program is implemented in accordance with the requirements of the California Environmental Protection Agency and the Cross Connection Control Handbook.

Installation of Approved Backflow Prevention Assembly Devices

If you are a Coastside County Water District customer and your water service meets the requirements for the installation of a backflow prevention device, the District wants to make the process as easy as possible.  The following information should help with the process:

• Where are the devices installed?
  The device is installed on the customer’s water service line immediately after the water meter.
• Who can install the devices?
  A licensed contractor, plumber, backflow professional, or the property owner can install the device.
• Backflow Prevention Device Installation/Testing Information
  • Standard Installation Detail
  • List of USC FCCCHR Approved Devices
  • List of Certified Backflow Prevention Device Testers
• Compliance Requirements
  After the initial installation, inspection, and testing of the backflow prevention device, the customer must:
  
  • Maintain the backflow prevention device
  • Submit annual test results to Coastside County Water District. You will receive a reminder, including a test report form and current list of certified backflow prevention device testers on an annual basis from Coastside County Water District.
• Contact Information
  • For questions regarding requirements email backflow@coastsidewater.org

Requirements for Backflow Prevention Assemblies

Water and Fire Service Connections – A backflow prevention assembly must be installed on all non-residential water service connections, including fire services and on residential water service connections that have an auxiliary water supply, sewage ejectors, hydronic radiant climate control, a cross connection, a storage tank or other risk of backflow contamination.

What is Backflow?

Backflow means the reverse flow of water or any other fluid or substance, or any combination, or any mixture thereof, from the customer’s system into the District’s water distribution system.

What is a Cross Connection?

Cross Connection means any connection between the District’s water distribution system and an auxiliary water supply, a pipe or piping system, plumbing fixture, appliance, container, receptacle, vessel or other devices that may allow for contaminated water, fluids, or other substance, other than the water supplied by the District, to enter any part of the District’s water distribution system.

Backflow Prevention Assembly Device

The installation of a backflow prevention assembly device will protect the District’s water system from possible contamination. The assembly must be approved by the USC Foundation for Cross-Connection Control and Hydraulic Research and must prevent backflow into the District’s distribution system. The backflow device must be lead (Pb) free per state regulations. Type II DCDA and RPDA devices are NOT allowed within the Coastside County Water District’s service area.