Water School

Filtration is the process of separating solids from water during the potable treatment process using a porous material such as a permeable fabric called a membrane or by using sand.

Potable water treatment is the process to purify water to make it acceptable to drink.  Most water treatment processes include some form or a combination of sedimentation, filtration, and chlorination.To view an illustration of the potable water treatment process at the East Williamson County Regional Water System, click here.