Mound Septic System

The drainage area in a mound system is more susceptible to compaction than a conventional drain field because the soil underneath the mound must already bear the weight of the mound itself. To prevent compaction, do not allow am vehicles or heavy equipment on the mound.

Because it is a more complex system, regular maintenance is even more important for mound systems than it is for traditional septic systems.

Mounds were developed to overcome three natural conditions:

1 slow or fast permeable soils,
2 shallow soil cover over creviced orporous bedrock,
3 a high water table.

A site that has any one of these three conditions (or a combination of them) is not suited for a conventional septic system.

Because acceptable soil conditions are not always found below the surface, the mound allows the conditions to be created above the surface.



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