Provides an on-site sewage disposal system owner is responsible for operating, monitoring, and maintaining the owner's on-site sewage disposal system to minimize the risk of failure. To help accomplish this purpose, the owner is responsible for inspecting their on-site sewage disposal system and ensuring a complete evaluation of the on-site sewage disposal system components and property as necessary to determine functionality, maintenance needs, and compliance with regulations and any permits.

Requires the department of health to revise WAC 246-272A-0270 in accordance with the criteria established in this act.