What Is Mottling?
A. The presence of mottling in the soil indicates poor aeration and impeded drainage. Mottling in a soil profile is determined by the presence of irregular spots of different colors in the excavation or boring. Mottling occurs with the seasonal saturation of the soil for a period of two or more weeks during the year. As a result, anaerobic activity during the period of saturation triggers a reduction process changing the color of minerals in the soil. Q. What is sewage? A. Sewage is a combination of the domestic liquid or semi-solid wastes from a dwelling or habitable building. This includes human excreta, garbage disposal wastes, dishwater, bath water laundry wastes basement drains, etc; but excludes roof storm water, water softener backwash discharge, footing drains, and storm water discharge. Q. What is meant by sewage failure? A. A sewage failure shall include but not limited to any condition where effluent from any sewage absorption system is exposed to the surface of the ground o
