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.
Change in Water Supply
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.
Annual Consumer Confidence Report (CCR)
Please take a moment to read the latest Consumer Confidence Report (CCR) to see how EMWD’s water continues to meet and exceed state and federal regulations. This annual report regarding water quality is published no later than July 1, each year.
2021 Consumer Confidence Report - English
2021 Consumer Confidence Report - Español
- 2017 Consumer Confidence Report - English
- 2017 Consumer Confidence Report - Español
- 2016 Consumer Confidence Report - English
- 2016 Consumer Confidence Report - Español
- 2015 Consumer Confidence Report - English
- 2015 Consumer Confidence Report - Español
- 2014 Consumer Confidence Report - English
- 2014 Consumer Confidence Report - Español
- 2013 Consumer Confidence Report - English
- 2013 Consumer Confidence Report - Español
- 2012 Consumer Confidence Report - English
- 2012 Consumer Confidence Report - Español
- 2011 EMWD Consumer Confidence Report
- 2010 EMWD Consumer Confidence Report
- 2009 EMWD Consumer Confidence Report
- 2008 EMWD Consumer Confidence Report
- 2007 EMWD Consumer Confidence Report
- 2006 EMWD Consumer Confidence Report
- 2005 EMWD Consumer Confidence Report
- 2004 EMWD Consumer Confidence Report
- 2003 EMWD Consumer Confidence Report
- 2018 Consumer Confidence Report - English
- 2018 Consumer Confidence Report - Español
- 2019 Consumer Confidence Report - English
- 2019 Consumer Confidence Report - Español
- 2020 Consumer Confidence Report - English
- 2020 Consumer Confidence Report - Español
- Read more
Backflow/Cross-Connection
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.
- Fluoridation Program Presentation
- Fluoridation Flyer
- Fluoridation FAQs
- SAWPA presents final results of Annual Emerging Constituents Sampling in Santa Ana River Watershed
- 2011 Sampling Report for Emerging Constituents in the Santa Ana Region
- Click here to learn more about copper and lead.
- the new phosphate-free detergents on the market
- Read more