Wash. Admin. Code § 173-308-060 – Biosolids not classified as solid waste

(1) The state of Washington recognizes biosolids as a valuable commodity.
(2) Biosolids are not solid waste and are not subject to regulation under solid waste laws.
(3) Sewage sludge or septage that fails to meet standards for classification as biosolids is a solid waste, and may not be applied to the land.
(4) Sewage sludge or septage that will be disposed in a landfill is a solid waste.

[Statutory Authority: Chapters 70.95J and 70.95 RCW. WSR 07-12-010 (Order 06-06), § 173-308-060, filed 5/24/07, effective 6/24/07. Statutory Authority: RCW 70.95J.020 and 70.95.255. WSR 98-05-101 (Order 97-30), § 173-308-060, filed 2/18/98, effective 3/21/98.]