On each parcel of land being initially developed, sufficient area of suitable soils—based on the soil tests and system location and site requirements of this code for one replacement system—shall be established. Where bore hole test data in the replacement system area are equivalent to data in the proposed system area, the percolation test is not required.
Where site conditions do not permit replacement systems in accordance with this code and an alternative system is used, the alternative system shall be approved in accordance with Section 105.
The replacement system shall not be disturbed to the extent that the site area is no longer suitable. The replacement system area shall not be used for construction of buildings, parking lots or parking areas, below-ground swimming pools or any other use that will adversely affect the replacement area.