Cross-Connection & Backflow Prevention Programs

See the link to the right for a list of approved backflow assemblies ->

The City of Woodland Utility Division monitors hundreds of backflows each year to insure the safety of our drinking water. A vital link in this effort is the Utility Division's Cross-Connection Control and Backflow Prevention Programs.

The City of Woodland has two sources of drinking water: surface water and groundwater. Our surface water comes from the Sacramento River. The Woodland-Davis Clean Water Agency (WDCWA) Regional Water Treatment Facility (RWTF) collects water from the Sacramento River east of Woodland and treats it by clarification, ozonation, and filtration. It is then chlorinated to maintain disinfection during distribution. Roughly 99 percent of Woodland’s potable water comes from WDCWA. The City also maintains nine groundwater wells, three of which are Aquifer Storage and Recovery Wells (ASR) that can store water (ASR) for peak demand or drought. Groundwater serves as a backup supply and is chlorinated prior to distribution.

  1. 1 Backflow Preventer
  2. 2 Backflow Preventer

Cross-Connections

Cross-Connections are any unprotected actual or potential connection or structural arrangement between a public or a consumer's potable water system and any other source or system through which it is possible to introduce into any part of the potable system any used water or substance other than the intended potable water. Bypass arrangements, jumper connections or any other temporary or permanent connections through which backflow can occur are considered to be cross-connections.

Backflow

Backflow is the undesirable reversal of flow of water or mixtures of water and other liquids or substances into the distribution pipes of the potable supply of water from any source or sources.

Federal & State

Federal and State laws require Water Purveyors to protect the system from cross-connections and backflow. To do this, we work closely with consumers, architects, contractors and engineers to insure that all those who are required to comply with cross-connection control and / or backflow prevention meet the requirements.

Cross-Connection Control Policy Handbook (Cal EPA)

Click here to review

Installation & Testing

Note: as of January 1, 2024, the City of Woodland Water Department performs the annual testing of Backflow Devices.

If you have been contacted by the Utility Division and know you need a backflow assembly device installed or tested, the Utility Division has a list of approved devices that have been evaluated and tested for installation within the City of Woodland's jurisdiction and has compiled a list of backflow testers who have provided credentials proving they are qualified to perform tests, repairs and installations of these backflow assembly devices. The City of Woodland requires a minimum buffer value of 3.0 psi.

More Information

For more information about this program, please contact Corey Paulson at corey.paulson@cityofwoodland.gov.