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Water Quality


Water Quality

EMWD delivers value to our customers and the communities we serve by providing safe, reliable, economical and environmentally sustainable water.

If you have questions about your water quality, please contact the Water Quality department Monday through Friday between the hours of 8:00 a.m. and 5:00 p.m. at 951-928-3777, ext. 3327.

You may also submit your questions online.


Change in Water Supply

Woman in the kitchen washing yellow peppers over the sink

In early April 2021, EMWD began transitioning to using more water from the Colorado River Aqueduct (CRA) system and less State Water Project (SWP) water from Northern California.  Customers may notice some additional scaling on shower heads, toilets or faucets because CRA water has a higher naturally occurring salt level.



EMWD works diligently to deliver safe and reliable drinking water to its customers. This effort begins with protecting our water supply sources – such as groundwater wells – and continues through the entire treatment and distribution process until the water reaches the meter. However, some hazardous conditions may exist on customer properties, which risk that safe drinking water supply.


Additional Information About Tap Water

The availability of clean, safe, healthy drinking water is something most of us take for granted. The water that flows from your tap is more than just a convenience; it contributes to the quality of life that we all enjoy. A well maintained water system is critical to public health, fire protection, and comes at a value that can’t be beat when compared to bottled water.