Water System Flushing Program


Western routinely cleans its water system to help maintain high-quality water throughout our service area. In the water industry, this process is known as flushing.

Western's water system flushing program removes sediment and mineral build-up throughout the distribution system and verifies the proper operation of the valves and hydrants. To learn more about Western's flushing program and why it's necessary to continue these practices during a drought, read our frequently asked questions below.  

  1. What is water main flushing?

Over time, natural sediments can accumulate in the large water pipes (also called mains) located beneath the streets. While these sediments are completely safe, they may affect water taste, color, and odor. Water main flushing is the process of cleaning the interior of the large water pipes and removing any accumulated sediment by sending a rapid flow of water through them. This rapid flow disrupts any sediment that may get in the mains over time, allowing us to filter and remove it. The water is discharged through select fire hydrants onto local roads or other surface areas.

  1. Why does Western need to flush its water distribution system?
  1. What should I do if my water is discolored after Western has flushed the water mains?
  1. Why can't Western clean the water mains at night?
  1. Does Western continue to flush during a drought?
  1. Is it possible to capture and reuse the water being flushed?
  1. I noticed you are flushing a well in my neighborhood. Why is it necessary to clean a well?