The City of Liberty Water Treatment Plant staff test for volatile organic compounds (VOCs) on a monthly basis from samples taken of raw water before it is treated. This testing is necessary due to elevated levels of VOCs discovered in the 1990s, which have been addressed and detection levels were reduced to acceptable levels. The continued monthly testing is a monitoring precaution even though no elevated levels have been detected in more than 10 years.
The Missouri Department of Natural Resources (MoDNR) also requires an annual test of treated drinking water for VOCs. They did not receive our sample to test for the calendar year 2024. The tests performed on the raw water are not accepted as a substitute for the treated water test performed by MoDNR. Because the treatment process of converting raw water to drinking water does not introduce any VOCs, staff is confident that no elevated levels of VOCs were present in 2024 drinking water. However, because the required sample of treated water was not received by MoDNR, the water system was out of compliance. Staff contacted MoDNR and established a new sampling cycle and the required sample for calendar year 2025 has been completed and no elevated levels were detected in the drinking water.
This notice is to inform residents of the compliance violation and provide an update about Liberty's drinking water. We are confident that Liberty Utilities has and continues to provide quality drinking water.
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