WACs > Title 246 > Chapter 246-274 > Section 246-274-430
Agency filings affecting this section
InstallersâTier 2 and Tier 3 greywater irrigation systems.
(1) Only a person approved by the local health officer to install greywater irrigation systems may construct and install a Tier 2 or Tier 3 system.
(2) The local health officer may allow the resident owner of a single-family residence, not adjacent to a marine shoreline, to install the Tier 2 or Tier 3 system for his or her residence when the system reuses no more than three hundred gallons per day of greywater.
(3) The installer shall:
(a) Follow the approved design;
(b) Have the approved design in possession during installation;
(c) Make no changes to the approved design without the prior authorization of the person who designed the system and, if a permit is required, the local health officer; and
(d) Be on the site at all times during the excavation and construction of the system.
[Statutory Authority: RCW 90.46.015. WSR 11-02-011, Â§ 246-274-430, filed 12/28/10, effective 7/31/11.]