Pond Liners above permanent pool

[CivilNJEP]

Does anyone know what is the minimum height above the permanent pool in a wet pond that a pvc liner should be installed at?

I was thinking of specifying 1 ft. Any suggestions?

 

[MiketheEngineer]

Call the mfg??

 

[Andy08330]

That really depends upon when you would like the infiltration into the sidewall to begin, assuming permeable soils.

Are you utilizing a positive discharge device for water above the normal water surface elevation ?

 

[FWilson]

Do you plan to install the liner throughout the impoundment, i.e. bottom and sidewalls? Do you mean where should it be terminated on the slope?

 

[Ryb01]

The pond liner should be extended at least 1ft (or 0.3m) above the extended detention elevation in the pond.