Section 246-272A-0290 - Expansions(1) The local health officer shall require an OSS and a reserve area in full compliance with the new construction standards specified in this chapter for an OSS expansion.(2) A local health officer may allow expansion of an existing OSS within 200 feet of a marine shoreline that does not meet the minimum horizontal separation between the soil dispersal component and the ordinary high-water mark required by WAC 246-272A-0210, Table IV, provided that:(a) The OSS meets all requirements of WAC 246-272A-0230, 246-272A-0232, 246-272A-0234, and 246-272A-0238;(b) The OSS complies with all other requirements of WAC 246-272A-0210 and this section;(c) Horizontal separation between the soil dispersal component and the ordinary high-water mark is 50 feet or greater; and(d) Vertical separation is two feet or greater.Wash. Admin. Code § 246-272A-0290
Amended by WSR 24-06-046, Filed 3/1/2024, effective 4/1/2024Statutory Authority: RCW 43.20.050. 05-15-119, § 246-272A-0290, filed 7/18/05, effective 7/1/07.