Who Is Required to Have Backflow Prevention Devices?
Anyone applying a pesticide through an irrigation system is required to have functional backflow prevention devices installed. The components differ depending on the type of connection. If you are connected to a municipal system and use the water for irrigation, you must conform to California Department of Public Health (CDPH) regulations for connection to municipal systems. These requirements can also be obtained from local County Health Services. If your water source is a stand alone well, you must comply with the label language for the pesticide product, except when there are alternatives approved by U.S. EPA. For example, a Venturi system can substitute for a positive displacement injection pump. Contact your local County Agricultural Commissioner (California Department of Food and Agriculture page opens in a new browser window) if you have any questions.
