Vertical seepage pits are slightly different in testing methods due to their large size, but the basic testing method is essentially the same.
2.
Finally, for leach line systems and horizontal seepage pits, a " deep hole " is drilled to find the water table or to approximately twelve feet ( dry ).
3.
In the case of a vertical seepage pit, local groundwater data may be used, or if the drill hole reaches groundwater, the pit will be backfilled again according to county health crate
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