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Water Information & Reports

Important Note from North Texas Municipal Water District


North Texas Municipal Water District Schedules a 28 Day Chlorine Maintenance of Its Transmission System and Customers’ Distribution Systems

The North Texas Municipal Water District (NTMWD) has scheduled a chlorine maintenance that will be conducted on the NTMWD Wylie, Tawakoni, and Bonham water transmission systems and customers’ distribution systems for a 28 day period from February 17, 2014 – March 17, 2014. 

The Texas Commission on Environmental Quality (TCEQ) allows water suppliers to perform chlorine maintenance to help reduce the need for water suppliers to flush systems in order to maintain chloramine residual (required by the TCEQ) during the warm weather periods, thus conserving water.   

The NTMWD utilizes chloramines, a combination of chlorine and ammonia to provide the disinfectant residual in the transmission and distribution systems as required by the TCEQ. Chloramines provide a longer lasting residual disinfection in water pipelines and storage facilities.  

Chlorine maintenance does not affect water quality and remains safe for use. During this period, consumers who are sensitive to taste and odor changes in drinking water might notice a change during this period. This palatability change does not alter the quality of the drinking water provided to consumers.


Below is some useful information on why this is happening. You can also find more information on NTMWD's web site. 

Please click on the links below for more information. 

Summer Algal Blooms (Specific) – A general fact sheet about Summer Algal Blooms.

Taste and Odor (General) - Includes a general fact sheet about taste and odor, a summer bloom information page, and a winter bloom information page.

Ozonation – Includes brief information about ozonation benefits and the NTMWD ozonation implementation plan at the Wylie Water Treatment Plants.

Reports and Information


How Water Works: An Interactive Tour, is a virtual tour of how water is collected, treated, and used in a typical water supply system. Beginning with the reservoir and wells and continuing through a water filtration plant, into the distribution system and consumers' homes, and out through a wastewater plant. The tour provides close-up descriptions of the various components of how water works. Using pop-up screens for a close-in look and description of operations. Click here to view: "How Water Works: An Interactive Tour"- made possible by the American Water Works Association.


City Of Wylie  |   300 Country Club Road  |   Wylie, Texas  75098  |   972.516.6000