In a recent government meeting, officials discussed critical challenges facing the city of Stuart's water supply, particularly concerning the surficial aquifer and emerging contaminants. The city's filtration system is struggling with increased sand production, which complicates maintenance and reduces the lifespan of existing wells. Currently, 16 out of 23 wells require replacement due to age and contamination issues, while the remaining wells need rehabilitation.
Emerging contaminants, notably PFAS and volatile organic compounds (VOCs), have necessitated the implementation of advanced treatment processes, including ion exchange systems and VOC towers. These measures have significantly raised both operating and capital costs for the city. The surficial aquifer, which is already under stress from drought conditions, is further impacted by these contaminants, leading to concerns about the quality of drinking water.
The meeting highlighted the advantages of utilizing the Florida aquifer, which is deeper and less susceptible to contamination. The city recently inaugurated a reverse osmosis treatment plant capable of processing 1.5 million gallons per day, with plans for future expansion to 3 million gallons per day. This expansion aims to alleviate pressure on the surficial aquifer and improve water quality.
Officials emphasized the need for a balanced approach to water sourcing, considering both the surficial and Florida aquifers. They proposed a 50-50 blend of water from both sources to enhance reliability and reduce the risk of contamination. The estimated costs for replacing the surficial wells range from $1.5 million to $1.8 million, with ongoing evaluations of the most cost-effective strategies for managing the city's water supply.
The city commission is expected to deliberate on these recommendations in future meetings, as officials continue to assess the implications of emerging contaminants and the overall sustainability of the water supply system.