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 Washington Administrative Code (Last Updated: November 23, 2016)
 Title 16. Agriculture, Department of (See Titles 24, 60, and 142)
 Chapter 16-201. Fertilizer bulk storage and operational area containment rules.

  Section 16-201-220. Backflow prevention.  

Latest version.
  • (1) When piping within secondary containment or an operational area is directly connected to a water source such as a well or public water system, an approved air gap or an approved reduced pressure principle backflow prevention assembly (RPBA) shall be installed to protect the water source. Approved air gaps and approved RPBA's shall be installed, operated, inspected and/or tested and maintained per WAC 246-290-490
    (2) Approved RPBA's shall be inspected and tested by a Washington State Department of Health certified backflow assembly tester, and approved air gaps shall be inspected by a Washington State Department of Health certified backflow assembly tester or cross-connection control specialist:
    (a) At the time of installation, alteration or relocation, and
    (b) At least on an annual schedule thereafter.
    [Statutory Authority: RCW 15.54.800. WSR 00-23-075, § 16-201-220, filed 11/17/00, effective 12/18/00. Statutory Authority: RCW 15.54.800 and 15.58.040. WSR 93-22-093 (Order 5018), § 16-201-220, filed 11/2/93, effective 3/1/94.]
RCW 15.54.800. WSR 00-23-075, § 16-201-220, filed 11/17/00, effective 12/18/00. Statutory Authority: RCW 15.54.800 and 15.58.040. WSR 93-22-093 (Order 5018), § 16-201-220, filed 11/2/93, effective 3/1/94.

Rules

246-290-490,