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At Grade Systems

At Grade Septic Fields

At grade septic system laterals

The At Grade septic field design is identical in component structure to the Pressure Distribution System except that the laterals are not buried into the ground. The laterals are placed on the ground surface within a well treed area. Once all the pressure pipes and chambers are constructed the entire lateral is covered over with a substantial amount of wood chips or mulch. Very specific design criteria has been developed to identify where this system can be utilized



At Grade FieldsAt Grade Fields