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Ensuring the water Denver Water delivers to 1.5 million people across the metro area every day is clean and safe is a quest the utility takes seriously. 

Denver Water collects water from across 4,000 square miles of mountain watershed and has four drinking water treatment plants that clean the water for delivery to customers. (Click here to check out the completion of the utility's newest treatment plant, the Northwater Treatment Plant north of Golden.)

The utility's teams regularly test the water at every step along the way — from the mountains to points around the city. 

Travel with Denver Water teams in the video below as they access remote mountain areas to collect and test water samples. 

Last year, Denver Water collected about 63,000 water samples and conducted about 145,000 tests.

Those samples and tests are part of a year-round effort monitored by the Environmental Protection Agency and the Colorado Department of Public Health and Environment.

Join people with a passion for water, at denverwater.org/Careers. 

Denver Water’s 2025 Water Quality Report shows that your drinking water is safe and meets — or goes above and beyond — requirements set by the EPA and state health department.

The report also contains important information about the source and quality of your drinking water, including data from the dozens of sites we monitor across our collection system. 

Check it out! 

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To view and download the report in English, visit denverwater.org/2025WaterQualityReport. The Spanish version will be available by June 1. (The 2024 report in Spanish is available at 2024 Informe de calidad del agua.) Reports from previous years are also available in English and Spanish. 

To request a mailed copy, email your name and mailing address to CustomerCare@denverwater.org.