The Snohomish Health District (SHD) may approve the use of a mound system preceded by a sand filter for existing legal lots of record when site conditions comply with all requirements described in Recommended Standards and Guidance for Performance, Application, Design and Operation and Maintenance Mound Systems, July 1, 2007.

SHD will not approve the creation of new lots, parcels or tracts that would utilize the sand filter/mound system on sites with only 12 inches to 18 inches of suitable soil. [Res. 08-10. Revised and reapproved by DOH 12/15/94. Res. 93-32, Eff. 11/09/93. Prior code § 8.1.8].