Water Quality Standards

Water Quality Report

At TMWA, providing you with high-quality drinking water is not just our job, it’s our life. We are proud to report our water quality is among the best in the country. But it doesn’t happen by accident. Our team of highly skilled engineers, scientists and operators work hard to provide you with clean, safe drinking water and dependable service. Each month at our state-of-the-art laboratory, we administer more than 1,000 tests to ensure your drinking water is significantly better than EPA standards require.

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For more water quality information click here


Select a water system from the list below to download the Water Quality Report (WQR) for your address. If you do not know your water system, use the search tool below the list.


TMWA 2014 Customers WQR English WQR Español
Arrowcreek WQR English WQR Español
Desert Springs WQR English WQR Español
Double Diamond WQR English WQR Español
Hidden Valley WQR English WQR Español
Horizon Hills WQR English WQR Español
Lemmon Valley WQR English WQR Español
Lighting W WQR English WQR Español
Mt. Rose WQR English WQR Español
Old Washoe WQR English WQR Español
STMGID East WQR English WQR Español
Spring Creek WQR English WQR Español
Spring Creek East WQR English WQR Español
St. James WQR English WQR Español
Stampmill WQR English WQR Español
Sunrise WQR English WQR Español
Thomas Creek WQR English WQR Español
Timberline WQR English WQR Español
Truckee Canyon WQR English WQR Español


Enter your address to look up your water system





TMWA Receives National Recognition
The Partnership for Safe Water has recognized TMWA's Chalk Bluff Water Treatment Plant with the Directors Award of Recognition, placing it among the highest ranking treatment plants in the country.
Learn more here.


TMWA Water Quality Lab Recognized for "outstanding analytical excellence!"
TMWA's Water Quality Lab passes EPA Method 1623.1 certification audit with flying colors! TMWA Senior Microbiologist Kelli Burgess and her team pretty much hit it out of the park and earned rave reviews from the Nevada Division of Environmental Protection.
Learn more.

How clean is TMWA water?
Please read our water quality topic paper to learn more.

Truckee Meadows Water Authority Case study for the 2011 U. S. EPA Region 9 Energy Management Initiative for Public Wastewater and Drinking Water

What is the quality of our water supply?