24.17.160 Installation.

(1)    The health officer shall require approved installers to construct the OSS, except as noted under subsection (2) of this section. Certified installers shall meet all requirements of Section 24.17.240(1).

(2)    The health officer may allow the resident owner of a single-family residence to install a conventional gravity septic system for that single-family residence if they meet all the following: (a) the OSS installer owns or has a beneficial interest as a contract purchaser of the land on which the OSS is to be installed; and (b) the OSS is either located on the same lot as the residence or situated on adjoining property controlled by the owner and legally listed as an encumbrance; and (c) the OSS installer will reside in or use the building served by the OSS. Persons engaged in the business of buying, selling and constructing homes or land shall not qualify. The health officer shall require written examination of resident owners when considering applications for self-installation.

(3)    All persons employed to construct, install or alter a sewage disposal system shall be employees of a certified installer.

(4)    The installer described by either subsection (1) or (2) of this section shall:

(a)    Follow the approved design;

(b)    Have the approved design in possession during installation;

(c)    Make no changes to the approved design without the prior authorization of the designer and the health officer;

(d)    Only install septic tanks, pump chambers, and holding tanks approved by the DOH;

(e)    Be on the site at all times during the excavation and construction of the OSS;

(f)    Install the OSS to be watertight, except for the soil dispersal component;

(g)    Cover the installation only after the health officer has given approval to cover;

(h)    Back fill with six (6) to twenty-four (24) inches of cover material per approved design and grade the site to prevent surface water from accumulating over any component of the OSS; and

(i)    Ensure hookup to the plumbing stub-out, unless the structure is not plumbed at time of completion, in which case the installer shall run a pipe from the tank to within ten (10) feet of the expected location of the foundation. A board approximately two (2) by four (4) by eight (8) feet shall be placed at the end of the pipe to mark its location. The board shall be initialed and dated by the installer. The pipe shall be buried approximately two (2) feet into the soil. The installation of this pipe shall be evaluated at the final inspection. (Sec. 17 of Ord. 2007-10-01)