parallax background

H2Ours -People Protecting Water is a collaboration between The Urban and Environmental Policy Institute (UEPI) at Occidental College and three communities in Los Angeles County represented by East Yard Communities for Environmental Justice (EYCEJ). Utilizing a community-based model of research, advocacy, and policy engagement, community leaders, EYCEJ, UEPI and Occidental College students and faculty, collaborated to understand and develop tools, resources and recommendations related to the quality of drinking water and issues embedded in navigating the regulatory landscape in communities where EYCEJ organizes. H2Ours -People Protecting Water worked in East Los Angeles, Long Beach, and the communities within Southeast Los Angeles County.


This guide is intended to provide residents of Los Angeles County: 1) Access to public information regarding drinking water quality, water governance, and water management using an interactive map that you can link to below, 2) General information regarding water suppliers, water quality reports and contacts regarding drinking water quality, 3) Where drinking water is generated and comes from, 4) General information on drinking water contamination, and 5) Suggestions and resources for collecting and testing the quality of tap water.

As you read through this guide you will learn more about the drinking water in Los Angeles County and find resources that will encourage you to become more engaged with the agencies and municipalities that are responsible for the quality and safety of the water you and your community drink.

H2Ours- People Protecting Water should also be considered as a resources. For questions and/or information on ways to collaborate, please contact

Interactive Map:
This web-based ArcGIS interactive map is meant to be used to gain more information about the quality of the drinking water in Los Angeles County. The interactive map includes findings from the State Drinking Water Contamination Index and the State Water Board’s Lead in Schools Sampling initiative and the Community Drinking Water Sampling. The map is intended for residents to learn about the general quality of the drinking water, the existing results of lead testing in schools, and the quality of drinking water in specific locations. The map is available on-line at the following address:
How to use the web-based ArcGIS interactive map:
Click on the link, read, and accept the disclaimer at the center of the page. You can then get started by entering your address using the search button or by clicking on the page and scrolling through the map. Once you identify a location you can click on the feature, a pop-up window will provide the Drinking Water Contaminant Index which will display the Drinking Water Contaminant Percentile and the Water Provider which will have a link to the Water Quality Report. You can also find the results of the California School-Requested Lead Samples and the Community Drinking Water Samples collected by H2Ours teams members at 26 locations in the Study Area.