Washington Administrative Code (Last Updated: November 23, 2016) |
Title 16. Agriculture, Department of (See Titles 24, 60, and 142) |
Chapter 16-202. Application of pesticides and plant nutrients through irrigation systems. |
Section 16-202-2008. What are the general antipollution safety device requirements for a fertigation system?
Latest version.
- All systems must have antipollution safety devices that include a backflow prevention system, a metering device, injection device, and system interlock to prevent backflow into the irrigation water source or chemical supply system.