WAC 246-272A-0240. Holding tank sewage systems

(1) A person may not install or use holding tank sewage systems for residential development or expansion of residences, whether seasonal or year-round, except as set forth under subsection (2) of this section. (2) The local health officer may approve installation of holding tank sewage systems only: (a) For permanent uses limited to controlled, part-time, commercial usage situations, such as recreational vehicle parks and trailer dump stations; (b) For interim uses limited to handling of emergency situations; or (c) For repairs as permitted under WAC 246-272A-0280 (1)(d)(i). (3) A person proposing to use a holding tank sewage system shall: (a) Follow design criteria established by the department; (b) Submit a management program to the local health officer assuring ongoing operation, monitoring, and maintenance before the local health officer issues the installation permit; and (c) Use a holding tank reviewed and approved by the department.