The City of Richardson employs a Water Quality Technician who facilitates water sampling to meet standards set by the Environmental Protection Agency (EPA), Texas Commission on Environmental Quality (TCEQ), and Texas Water Development Board (TWDB). These standards require taking daily chlorine residual in each pumping zone, 100 bacteriological samples monthly, pH and THM/HAA5 samples quarterly, Nitrite/Nitrate samples annually, Triennial Lead and Copper samples, and special bacteriological samples for new construction lines. The Water Quality Technician must complete water quality reports to maintain compliance.

The City of Richardson also commissions annual Consumer Confidence Reports on the quality of the city's water:

• 2024 Water Quality Report
• 2023 Water Quality Report
• 2022 Water Quality Report
• 2021 Water Quality Report
• 2020 Water Quality Report
• 2019 Water Quality Report
• 2018 Water Quality Report
• 2017 Water Quality Report
• 2016 Water Quality Report
• 2015 Water Quality Report
• 2014 Water Quality Report
• 2013 Water Quality Report
• 2012 Water Quality Report