An existing on-site sanitary "private disposal" system (inclusive of existing community on-site septic systems) may be approved as an off-site sewage disposal system when such approval, as part of an application review, (A) would not adversely affect the public interest, and (B) would provide for greater compliance with the provisions of the subdivision code overall.
Also, if a subdivision provides dry sewer lines pursuant to EMC §
11.35.020, they may create the maximum number of lots permissible through the underlying zoning district's maximum density and/or minimum lot area requirements. Any lots proposed in excess of the density and/or lot area permitted with on-site septic systems shall not be built upon until the dry sewer facilities and all of the lots in the subdivision are connected to an available sanitary sewer line (i.e., designated for future development when sanitary sewers become available). These excess lots may be used for interim off-site septic systems designated for use by other buildable lots, are transferable, and may be sold with a clear restriction on their development.
The approval of an exception under this section must be noted in the findings of a formal written decision or staff report conditions and subject to final approval by the city. Any off-site sewage system must comply with TPCHD requirements for properly certifying and recording all easements related to the off-site system prior to any final approval.
(Ord. 12-385 § 2; Ord. 25-0686, 7/22/2025; Ord. 26-0709, 5/12/2026; Ord. 26-0709, 5/12/2026)