The City of San Angelo received a violation notice from the Texas Commission on Environmental Quality for exceeding the Environmental Protection Agency’s maximum contaminant level for total trihalomethanes in the drinking water supply.
The protocol for such a violation includes notification to the public. Please note that no action needs to be taken by citizens and staff will be closely monitoring levels to ensure we are not surpassing any disinfection byproduct limits set by the EPA.
Highlights:
- The maximum contamination level for trihalomethanes is 0.080 milligrams per liter. Our levels tested in the range of 0.081-0.083 mg/L.
- Studies have indicated people who drink water containing trihalomethanes more than the maximum contamination level over many years have an increased risk of developing cancer and issues with the liver, kidney or central nervous system.
- No action needs to be taken by citizens. It is not necessary to use an alternative water supply – the City of San Angelo is closely monitoring disinfection byproduct levels.
- Elevated trihalomethane levels occurred as a result of using solely surface water in our treated water supply. We normally blend treated surface water with treated groundwater, which is less likely to form high levels of trihalomethanes.
- Our groundwater treatment facility has been offline while the groundwater system is expanded.
- The groundwater system expansion is nearing completion.
See the attached notice of violation for more information.
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