Questions About Water Discoloration?
In response to recent concerns about water discoloration and chemical additives, Harris County Municipal Utility District No. 290 (the “District”) wants to assure residents that your drinking water is safe, meets all regulatory standards, and is free of any harmful chemical additives.
It’s important to understand that groundwater naturally contains dissolved minerals and other constituents as it moves through underground soils and rock formations. These naturally occurring substances are typical of well water and can influence characteristics such as color or hardness. Well water commonly contains minerals such as iron and manganese, which may cause reddish-brown, orange, or dark staining on fixtures and laundry when oxidized, as well as naturally occurring organic compounds (tannins) that can give the water a yellow or tea-colored appearance from time to time. These conditions are common in groundwater throughout the Houston area, reflecting the natural geochemistry of the aquifer.
The District’s water supply comes from three groundwater wells, and the primary method of disinfection is chlorine, which is carefully monitored as required by the Texas Commission on Environmental Quality (“TCEQ). In addition, the District uses a polyphosphate injection system to help sequester naturally occurring solids and reduce aesthetic issues like discoloration. This process is not harmful and does not affect the safety of your water.
The District conducts all required water testing, monitoring, and reporting in accordance with Texas Commission on Environmental Quality (TCEQ) regulations for public water systems. All test results are reviewed by the TCEQ and must meet strict state and federal standards before water is delivered to residents. Certified laboratories and approved monitoring plans are used to ensure quality control and regulatory compliance. In addition, the District performs routine flushing to minimize aesthetic issues and maintain water quality, including monthly flushing of dead-end mains and annual hydrant flushing.
If you ever have questions about your water quality or test results, you can contact the District’s Operator – MOC, Inc. or view publicly available data through the Texas Drinking Water Watch database.
Ensuring safe, clean drinking water for the community remains our top priority. Thank you for your understanding and trust as the District continues to ensure a safe and reliable water supply for our community.
