406.1 Soil Absorption Site Location
The surface grade of all soil absorption systems shall be located at a point lower than the surface grade of any nearby water well or reservoir on the same or adjoining property. Where this is not possible, the site shall be located so surface water drainage from the site is not directed toward a well or reservoir. The soil absorption system shall be located with a minimum horizontal distance between various elements as indicated in Table 406.1. Private sewage disposal systems in compacted areas, such as parking lots and driveways, are prohibited. Surface water shall be diverted away from any soil absorption site on the same or neighboring lots.
MINIMUM HORIZONTAL SEPARATION DISTANCES FOR SOIL ABSORPTION SYSTEMS
|Habitable building, below-grade foundation||25|
|Habitable building, slab-on-grade||15|
|Lake, high-water mark||50|
|Streams or watercourse||50|
For SI: 1 foot = 304.8 mm.
The site shall be located outside of flood hazard areas.
Exception: Where suitable sites outside of the flood hazard area are not available, it is permitted for the site to be located within the flood hazard area. The site shall be located to minimize the effects of inundation under conditions of the design flood.