The Texas Commission on Environmental Quality (TCEQ) sets water quality standards for public drinking water. Samples taken in the City of Houston (COH) Main Public Water System (TX1010013) during October, November and December 2017 were below the TCEQ required minimum standards for chlorine disinfectant residual levels in more than 5 percent of the samples taken triggering the COH to notify all of its customers, including customers like the Water Authority who are required to purchase water from the COH, of this issue with their water system. The Water Authority’s system did not have this problem as we monitor and adjust disinfectant levels before distributing water to its customers. For more information on the required notice by the COH, click on the link below. For more information on the water delivered to you by the Water Authority, call 713-465-8318.