Everybody knows that hydrants are essential to provide water for
fire protection, but they also serve a critical role in ensuring
customers receive reliable, quality water service at their home
Hydrants are necessary to flush the underground water system,
improving water quality by removing mineral and sediment deposits
that accumulate over time. While not harmful to customers, the
substances can cause aesthetic water quality issues when they are
not periodically flushed from the system.
The process is known as hydrant flushing, and it is an essential
maintenance procedure all water providers must perform
periodically to ensure the deliver of water that meets state and
federal drinking water standards.
During flushing activities, hydrants are opened for a limited
period at strategic points in the system, moving water through
the pipes at a high speed to discharge the minerals and sediments
that settle in the pipes over time. Flushing also helps to
maintain flow and pressure in the water system.
Water discharged during Golden State Water’s flushing activities
is done so in full compliance with state and federal
regulations. In several service areas, Golden State Water is
using NO-DES (Neutral Output-Discharge Elimination System)
flushing to help flush our distribution systems sustainably.
Traditional hydrant flushing discharges hundreds of thousands of
gallons of water onto the street. GSWC’s NO-DES trucks and
trailers offer a new maintenance technology, connecting two
hydrants to a complex filtration system which cleans the water
and returns it to the distribution system.
Customers may experience fluctuations in water pressure or
temporary presence of sediment in their water during flushing
periods, but the condition is temporary and poses no health
hazard. Water service should not be interrupted by flushing