About 47,000 Colorado Springs Utilities customers are being notified that a water quality standard has been exceeded at the Fountain Valley Authority's water treatment plant.
Those customers get a blend of water from Utilities and the FVA, but the exceedance of Total Organic Carbon does not pose a health threat, Utilities advises.
Leaves, sticks, dirt and other substances washed into the Pueblo Reservoir, where the FVA gets its water, during heavy rains over the past two years.
The excessive levels of TOC occurred temporarily in the first quarter of 2016, Utilities reports. Although the TOC exceeded standards, it "does not pose an immediate health risk and is not an emergency," Utilities said in a news release.
A standard is set for TOC because it can lead to formation of disinfection byproducts, which can have adverse health effects. Those byproducts include trihalomethanes and haloacetic acids.
Both byproducts are below drinking water standards and thus pose no health risks, Utilities reports.
The FVA also supplies water to Security, Widefield, Stratmoor Hills and Fountain through their water districts, which are responsible for alerting their customers.