[StBernard] Pools

[Westley Annis]

Does anyone know if there is a special process that needs to be taken when
cleaning in-ground pools in the oil zone?  I have contacted a pool company
but they are concerned there may be issues about pumping the pool out into
the sewer system in the oil area.  
 
If that is an issue, how does one get around it?  Any help or information
would be appreciated.  Thanks.

Tanya