Construction and Emergency Information


After-hours Emergencies

If you have an after-hours water or wastewater emergency, please call Western’s Emergency Line at 951.789.5109. During normal business hours, call Western’s Operation Center at 951.789.5100.

March Shutdown for Electrical System Upgrades - March 22  - March 28, 2019

Scheduled electrical system upgrades to treatment plant. Please turn off outdoor irrigation March 22 – 28
To provide you with the reliable service that you have come to expect, Western’s imported water wholesaler, the Metropolitan Water District, will be shutting down the treatment plant that provides the majority of our water supply for electrical system upgrades. From March 22-28, Western will meet 100 percent of your water needs entirely through storage and an interconnection with Riverside Public Utilities.

As a precautionary measure to keep storage at adequate levels in the event of an emergency during the shutdown, Western requests:

  • Homeowners are asked to stop all outdoor water use starting on Friday, March 22
  • Indoor water usage can continue as normal
  • All commercial irrigation meters will be locked off
  • All businesses are asked to lower usage

We thank you for your patience, understanding and assistance. Please visit for updates, or feel free to contact us at 951.571.7100 and ask for shutdown information.

Additional Information

If you have a non-emergency issue, don't hesitate to contact Customer Service at 951.571.7104.

2011 Hazard Mitigation

Western Municipal Water District is in the process of updating its Hazard Mitigation Plan. The Federal Emergency Management Agency (FEMA) requires that all public agencies have a plan to mitigate natural and man-made hazard impacts on its daily operations. The term "Hazard Mitigation" describes actions that can help reduce or eliminate long-term risks caused by natural hazards, or disaster, such as floods, wildfires, high winds and earthquakes as well as man-made events such as power outages, civil unrest, nuclear meltdown or even a pandemic illness in the region. If you would like to learn more about Western’s Hazard Mitigation Plan, or have comments, please contact Administrative Services at 951.571.7100.