18J.15.160 Dry Sewer Lines.
A. Applicability. New urban developments proposing to utilize interim on-site septic systems shall be required to install dry sewer facilities.
1. When dry sewer lines are installed, a residential development up to the maximum density may be allowed, provided lots in excess of the density permitted with on-site septic shall not be built upon until the sewer line is extended and connected to all the lots. This process is referred to as shadow platting.
B. Exemptions.
1. Dry sewer facilities are not required if all the following apply:
a. The applicable sewer service provider agrees to the dry sewer facility exemption;
b. The depth and location of a future sewer line that would serve the project cannot be provided by the applicable sewer service provider;
c. All lots within a project shall be connected to the sanitary sewer system at the time a sewer line is installed adjacent to the proposed development; and
d. The plat includes a no objection to sewer clause.
C. Design Objective. Provide adequate public facilities and services concurrent with development. Ensure that the creation of lots, the location of easements, road dedications, structures, wells, and septic drainfields are consistent to permit future infill at urban densities.
D. Standards.
1. Dry sewer lines shall be installed in conformance with the standards established by the Pierce County Public Works Department*, or other applicable permitting jurisdiction.
* Code Revisor's Note: The name of the Department was changed to Planning and Public Works in Ordinance No. 2017-12s.