Maui Business Park water system in Kahului has been found to contain PFAS, or perfluoroalkyl and polyfluoroalkyl substances. These chemicals were detected in water samples from the Wai’ele wells 1 and 2 chlorinator at the Maui Business Park water system, which serves about 64 businesses in the area. While the levels of PFAS detected are below the Maximum Contaminant Level (MCL) set by the Environmental Protection Agency (EPA) for PFOA, there are no established MCLs and Hazard Index for other types of PFAS detected in the water system, such as PFHpA, PFHxA, PFPeA, and PFBA.
The detection of PFAS was reported in a lab report from February 20, 2024, and confirmed in a report from March 27, 2024. The businesses served by this water system have been notified of the detection. The water system informed the Department of Health (DOH) about the presence of PFAS through an email on April 3, 2024.
This issue is currently being addressed to ensure the safety of the water supply in the affected area. Local institutions have been made aware of this concern. The map above shows