Pools as Impervious Surfaces

[waytsh]

Are pools generally considered to be an impervious surface when considering lot coverage by impervious surfaces? If so, is there a place where this is mentioned in the code or other significant document? Our township gives examples of impervious surfaces (roofs, drives, patios, walls, etc.) but does not mention pools specifically. In my mind they would be but I wanted to do some research on it. Thanks!

 

[BAretired]

A pool is an impervious surface as long as it doesn't leak. Pools made using vinyl liners are impervious until a tear occurs, after which they are anything but impervious. Pools made with concrete walls and slabs should be impervious if properly constructed.

BA

 

[hokie66]

A pool is impervious, but for the code provisions for precipitation runoff, it is a holding basin. But it only holds the rainfall for its own area, and then only until it overflows.

 

[waytsh]

Makes sense. I can see how it would not contribute to runoff, until, like you said, it overflows. I would think it would also be considered impervious for groundwater recharge assuming that it retains all the water. Thanks to both of you for the feedback.