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Soil Disposal/Dispersal Options

Soil absorption systems use the natural soil as part of the onsite wastewater system providing both treatment and ultimate dispersal of the water into the ground. Various configurations exist for soil absorption systems using either gravity or pressure distribution to disperse the water throughout the system.

Soil Absorption Systems - Trenches, beds, contour trenches, and low- pressure pipe (LPP) systems are highlighted.

Alternating Drainfields - Use of two drainfields interlaced offers extended life of an onsite system because while one system receives water, the other ‘rests,’ – does not receive water.

Alternative Dispersal Options - Various alternatives to the conventional soil absorption/dispersal system to overcome site limitations for onsite wastewater treatment.

Alternatives to Gravel Drainfields

Alternating Fields

Alternatives to Gravel Drainfields - Conventional drainfield (i.e., soil absorption system) consists of a series of trenches or a bed lined with crushed stone or gravel and perforated pipes. Alternative aggregate media options exist that may provide better treatment and/or be cost-effective.