Water Quality

At the City of Corona Utilities Department, providing safe, clean, high-quality water is one of our highest priorities.

The City of Corona Utilities Department performs continuous water quality testing to ensure safe drinking water for our residents.

The City monitors its water supplies for clarity and organic and inorganic materials, in addition to other ongoing quality tests. At the end of each year, the results of these tests are compiled in an annual consumer confidence report.

View the latest Consumer Confidence Report

Learn more...

• See current and past Consumer Confidence Reports
• See answers to questions about Water Service
• State of the Science of Hexavalent Chromium in Drinking Water prepared for the Water Research Foundation. This paper provides a summary of Cr(VI) occurrence, sources, analytical methods, treatment options, and health effects, as well as the status of state and federal drinking water regulations.
• Water Quality & Stormwater
  NPDES New Development and Construction Guidelines
  NPDES Industrial and Commercial Guidelines
  NPDES Residential Guidelines
  Swimming Pool Discharge
• Myths versus Facts on Hexavalent Chromium prepared by CA-NV AWWA and Association of California Water Agencies. This paper dispels common myths related to Cr(VI).
• Chromium in Drinking Water:  A Technical Information Primer prepared for AWWA.
• Guide to Public Health Goals (PHGs) for Chemicals in Drinking Water
  by Office of Environmental Health Hazard Assessment. This guide states that drinking water is considered safe to drink as long as it complies with all MCLs, even if some contaminants exceed PHG levels.