Water Quality

Water & COVID-19

According to the Center for Disease Control and the World Health Organization, COVID-19 is transmitted through person-to-person contact and not through water. The CDC has also stated that the COVID-19 virus has not been detected in drinking water.

Water Quality

Since 1991, California water utilities have been providing information on water served to its consumers. This 2021 Water Quality Report (PDF) is a snapshot of the tap water quality that we provided last year.

Image of a glass of water on a piece of paper

Included are details about where your water comes from, how it is tested, what is in it, and how it compares with state and federal limits. We strive to keep you informed about the quality of your water, and to provide a reliable and economic supply that meets all regulatory requirements.

You may access previous years’ Water Quality Reports through the following links: 2020 (PDF) 2019 (PDF) 2018 (PDF) 2017 (PDF) 2016 (PDF) 2015 (PDF) 2014 (PDF) 2013 (PDF) 2012 (PDF)

California Department of Public Health Confirms Signal Hill Drinking Water System Complies with Safe Drinking Water Act Regulations

The California Department of Public Health recently conducted a review of the City of Signal Hill Water Department water quality testing procedures, records, and water treatment process. On April 15, 2011, the State agency issued a letter (PDF) stating that the Signal Hill Water Department complies with federal and state drinking water regulations.