Water Quality Information

Update on Plano's Water Quality

City Staff conducts water quality tests every day to ensure our water is safe.    The test data is read directly from the testing equipment (except the bacteriological testing must be performed in a laboratory). Additional tests are performed quarterly by an independent testing firm/laboratory.   We are working to get clarification from all parties involved regarding performing these additional tests now, as a mid-cycle test.

In the meantime, the raw data results from our daily testing performed this year are provided for review along with information to help interpret the spreadsheets.

Tank and Pump Station data is taken every day. More information is read on workdays. Click to download the Tank and Pump Station data spreadsheet.

Bacteriological data.  City staff takes 150 samples each month to ensure the water is safe. Water samples are transported to the North Texas Municipal Water District where they are tested in their accredited laboratory. Any failed test must be re-tested at the same site, and both upstream and downstream of the site. While there is not a legal requirement to retest locations where heavy bacteria has been identified, we voluntarily retest those locations to be sure the water is safe.  As the staff is taking the samples for bacteriological testing, chlorine levels are checked at the same locations. Click to download the Bacteriological data spreadsheet. 

Nitrification plan data. We are required to test to monitor for nitrification. We test above what is legally required. Click to download the Nitrification plan data spreadsheet.

In October 2017, BestLife.com posted a story called “The 25 U.S. Cities with the Worst Drinking Water.” Plano appeared on the list along with 16 other Texas cities, including Dallas, Fort Worth, McKinney, Frisco, Garland, Arlington, Irving and Grand Prairie.

The City of Plano's Public Works Department has been unable to verify the validity of this report or make sense of the methodology referenced in the article. The city wants its water customers to know that they receive safe, high-quality drinking water that is regulated to the highest standards. Plano’s water system has a “Superior” rating with the Texas Commission on Environmental Quality (TCEQ), and it exceeds all state and federal drinking water standards.

The City of Plano takes great pride in the high quality of its water, which is the same water shared by the entire North Texas Municipal Water District service area. Learn more in the water quality report.

North Texas Municipal Water District Response

Recently, an online publication issued a list of “The 25 U.S. Cities with the Worst Drinking Water.” This report is being circulated online and four NTMWD Member Cities are included. In fact, 16 of the cities listed are from Texas, many from the DFW area. We have significant concerns about the methods used to develop this list, which is NOT based on scientific studies. We have posted key facts on our website to counter these unsubstantiated claims: https://www.ntmwd.com/safe-drinking-water-top-priority/

2016 Water Quality Report Now Available

The Consumer Confidence Report (CCR) is an annual water quality report provided by the City of Plano to all its water customers. As required by the Safe Drinking Water Act, the purpose of the CCR is to raise customer awareness about the quality of our local drinking water. It provides information about where it is sourced from, what it takes to deliver it to homes, and the importance of protecting drinking water sources.

Use the link below to view the Water Quality Report or call 972-769-4160 to speak to someone about the report or to request a paper copy be mailed to your home.