(A) Leaching systems utilizing soil absorption or percolation shall not be permitted where the depth to rock strata is less than four feet below the bottom of the proposed system.
(B) Leaching systems utilizing soil absorption or percolation shall not be installed where the texture, structure, or permeability of the soil is not suitable to provide internal drainage. The health commissioner may require the owner at the owner's expense to provide a written site evaluation by a qualified person before a final decision is made in issuing a permit. The criteria of the national cooperative soil survey shall be used as a guideline by the health commissioner to determine the suitability of the soils in lieu of a more detailed guideline relating to code requirements and soil characteristics.
Promulgated Under: 119.04
Statutory Authority: Sec. 120.02 of Am. Sub. HB 119 (127th G.A.)
Rule Amplifies: Sec. 120.02 of Am. Sub. HB 119 (127th G.A.)
Prior Effective Dates: 7/1/1974, 7/1/77, 7/2/07