Section 16-231-530 - Restrictions due to wind conditions in Whitman County(1) Areas 1 and 3. The use or application of use restricted herbicides is prohibited when the mean sustained wind velocity is over twelve miles per hour.
(2) Area 4. The use or application of use restricted herbicides is prohibited when the mean sustained wind velocity is over twelve miles per hour: Provided, That ground applications of use restricted herbicides in conformance with the manufacturer's specified combination of nozzle type/size and pressure in pounds per square inch (psi) at the nozzle that produces a spray droplet size that falls within the very coarse (or larger) range as defined by the ASABE standards are allowed when the mean sustained wind velocity is fifteen miles per hour or less and allowed by the label.Wash. Admin. Code § 16-231-530
Amended by WSR 19-02-039, Filed 12/26/2018, effective 1/26/2019Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-231-530, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. 91-06-019 (Order 2073), § 16-231-530, filed 2/26/91, effective 3/29/91; 87-09-015 (Order 1923), § 16-231-530, filed 4/6/87; 80-03-033 (Order 1672), § 16-231-530, filed 2/20/80.