Water Quality Facts

Our annual Water Quality Report provided to our customers in accordance with the Safe Drinking Water Act, has been compiled to help you understand the water supply and quality issues vital to our area.

Our Water Quality Lookup page is a map-based reference tool providing water quality data by geographic location within our service territory.

How Clean is TMWA Water?  Providing safe, reliable, high-quality water to the community is our top priority here at TMWA.


Water Quality Topics

Fire Hydrant Flushing

Learn how this can create dirty/brown water.

PCE and Your Drinking Water

Get answers to commonly asked questions.

TMWA Water Quality Lab Recognized for “outstanding analytical excellence!”

TMWA’s Water Quality team learned their lab had been certified by the Environmental Protection Agency (EPA) to run Method 1623.1, a process for analyzing for Giardia and Cryptosporidium. Read more

Partnership for Safe Water Recognizes TMWA Plant for Excellence

Truckee Meadows Water Authority has received the “Directors Award of Recognition” from the Partnership for Safe Water.  With this award, TMWA’s Chalk Bluff Water Treatment Plant ranks among the highest performing water treatment plants in the country, producing high quality water for more than 330,000 residents in the Reno-Sparks area. Read more

TMWA Tap Water is Free of Pharmaceuticals

Results are negative for EDCs and Pharmaceuticals.  Read more

Water Filtration Systems

Learn more about Home Filtration Systems.

Additional questions? Check out our Frequently Asked Questions or contact the Water Quality Department at 775-834-8118.

Other Information

EPA: Drinking Water Watch