The annual flushing of fire hydrants is an important preventative maintenance activity which is necessary to maintain the integrity of the water distribution system and to ensure the delivery of high quality water to our customers. Flushing the water distribution system achieves three objectives: helps to keep the interior of the water lines clean (removes sediment); helps maintain good quality water in the water distribution system; and provides an opportunity to check the operation of all fire hydrants. The water is safe to drink but may cause staining of laundry.