(A) General. The design of a repair to an onsite wastewater system, as defined in § 171.021, shall meet the applicable requirements of this section.
(1) Location. The location of all proposed system components complies with the setback distances established by Appendix D.
(2) Capacity. The capacity of all proposed system components complies with the requirements established by Table C.2 (Appendix C).
(3) Distribution components. The size, materials and functionality of all proposed distribution components are equivalent to the components being replaced, and are compatible with the onsite wastewater treatment system.
(4) Basal area extension. When the basal area is extended, it shall be extended along the entire length of the downslope toe of a system using gravel or coarse sand, as applicable when reserve area is designated on an existing approved site plan. The width of the extension shall be determined in accordance with site conditions and best engineering practices.
(5) Toe drain addition. When a toe drain is installed, it shall be at the downslope toe of a Wisconsin at-grade, mound, or modified mound system, or an Illinois raised filter bed system seeping to the ground surface provided the seeping water does not meet the definition of domestic sewage, and all system inflow and infiltration has been corrected. The toe drain shall discharge to a seepage trench and shall meet the setback distances in Appendix D. The depth and width of the toe drain shall be determined in accordance with site conditions and best engineering practices.
(Ord. [Bd of Health Ord., Art. V], passed 11-12-1996; Ord. [Bd of Health Ord., Art. V], passed 11-12-2013)