WAC 16-202-2008
What are the general antipollution safety
device requirements for a fertigation system? 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.
[Statutory Authority: Chapters 15.54, 15.58, and 17.21 RCW. 01-13-063, § 16-202-2008, filed 6/18/01, effective 11/9/01.]