soakage

1 :  liquid that soaks through or out; also :  the amount gained by absorption or lost by seepage an analysis of the well water reveals no soakage from the cesspool

2 :  the act or process of soaking :  the state of being soaked increase the soakage of rain into the geological layers which store water — Sydney (Australia) Bulletin white oak … is impervious to soakage through the pores — F. P. Hankerson