Pre-treatment is an important process in the operation of any potable water
treatment facility. Pre-treatment at Chalk Bluff begins with the
removal of larger debris, such as logs and large leaves, by passing
the water through bar screens. After passing through bar screens, the water enters raw water basins
where the velocity of the water is slowed allowing heavier sediment and grit
to settle to the bottom of the basins where it is periodically removed
in a separate process using a floating Dredge. After the Raw Water Basins,
the water passes to the next stage of the treatment process;
The Screening Facility.
