ARNOLD AIR FORCE BASE, Tenn. -- AEDC Complex Water Plant recently violated a federal drinking water standard. Although this situation does not require that you take immediate action, you as a customer, have a right to know what happened, what you should do, and what was done to correct this situation.
During the April 1, 2025 through June 30, 2025 compliance period the water system's Locational Running Annual Average (LRAA) at site #201, Commissary Building 125, for Total Haloacetic Acids (HAA5) has been calculated to be 0.06025 mg/L. This value exceeds the Maximum Contaminant Level of 0.060 mg/L set for this parameter.
Some people who drink water containing haloacetic acids in excess of the MCL over many years may have an increased risk of getting cancer.
Total Haloacetic Acids are disinfection byproducts resulting from our chlorination of the water to minimize risk of microbial life in the drinking water. The EPA considers microbial contaminants as the greatest risk to the public. We are evaluating the results of the required disinfection and will continue to make an effort to reduce the disinfection byproducts without increasing the microbial risks.
During the April 1, 2025 through June 30, 2025 compliance period the water system's Locational Running Annual Average (LRAA) at site #201, Commissary Building 125, for Total Trihalomethanes (TTHM) has been calculated to be 0.10615 mg/L. This value exceeds the Maximum Contaminant Level of 0.080 mg/L set for this parameter.
Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and have an increased risk of getting cancer.
Total Trihalomethanes are disinfection byproducts resulting from our chlorination of the water to minimize risk of microbial life in the drinking water. The EPA considers microbial contaminants as the greatest risk to the public. We are evaluating the results of the required disinfection and will continue to make an effort to reduce the disinfection byproducts without increasing the microbial risks.
You do not need to boil your water or take other actions. However, if you have specific health concerns, consult your doctor.
For more information, please contact Bioenvironmental Engineering at 931-454-6232
Please share this information with everyone who may drink this water, including those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.
This notice is being sent to you by AEDC Complex Water Plant. PWSID# TN0004408