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Samples were collected and sent to an independent, certified laboratory. Test reports confirmed that 1,4-dioxane was detected in some samples. The District shared results with the Colorado Department of Public Health and Environment and Tri-County Health Department. Since the presence of the chemical was found, the District completed additional sampling using EPA-approved methods.
The District has taken many proactive steps in response to the detection of 1,4-dioxane in its water supply. • In 2013, the District expanded the water laboratory at the Klein Water Treatment Facility to be able to accurately analyze for this substance.• The District continues to monitor 1,4-dioxane concentrations in its water supply • The District has blended its water sources to minimize concentrations to the extent practical and assure that concentrations are well below the EPA health advisory. • The District has also engaged water treatment and engineering consultants to help us examine ways to minimize the presence of this substance. This includes pilot study testing of a process to remove the substance as well as cost estimates for construction of treatment capacity.