Jonathan Leung LADWP Water Quality Director
Jonathan Leung, 
Director of Water Quality

A message from Jonathan Leung, Director of Water Quality

It is my honor to address you as the LADWP Director of Water Quality. It’s a great responsibility but also a great privilege to continue a long legacy of dedication, vigilance, and innovation as we work to continue providing you and your family with clean, reliable, and high-quality drinking water.

In 2022, we carried out a comprehensive testing program throughout the City’s water system and our water sources by collecting more than 26,000 samples and conducting over 107,000 tests. We maintained continuous, daily operation of field testing, sampling, and lab analysis throughout the ongoing COVID-19 emergency declaration. We’re proud to say that these efforts ensured high quality water to all Los Angeles residents throughout the three-year pandemic.

In addition to carrying out our core mission, we sought to serve our customers in new and innovative ways. In January of 2022, we commissioned the Los Angeles Reservoir Ultraviolet Disinfection Plant (LARUVDP), a $123.8 million, state-of-the-art water treatment facility. The activation of the LARUVDP also completes a 20-year journey of bringing our infrastructure into full compliance with the U.S. Environmental Protection Agency’s (U.S. EPA) regulations to protect drinking water in reservoirs. We also utilized online water quality monitors for the L.A. Convention Center area during the 2022 Super Bowl week of events and the international Summit of the Americas. We also supported the successful completion of the City of Los Angeles’ goal to refurbish or install over 200 hydration stations throughout the city by 2022. The hydration station program symbolizes our commitment to bring clean, refreshing tap water to all our customers across the city – at home, at work and in our neighborhood parks every day.

You’ll find this and much more in this report, which summarizes the results of the water quality tests conducted in 2022 and provides specific information about the quality of water served throughout our various communities. The information herein validates the rigorous treatment, testing, and monitoring of L.A.’s drinking water; achieving all primary state and federal drinking water standards.

Four Member family sitting on grass; from left to right, Mother, son, son and father smiling at each other sitting in half circle, with LADWP reusable water bottle to the father's feet

Have any questions?

Should you have any questions about your water quality or would like advice on how to improve water quality at your own home or workplace, please do not hesitate to call our Water Quality Customer Care Hotline