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Board of Water Supply updates council on Red Hill contamination, PFAS detections and long-term remediation needs
Summary
Board of Water Supply officials told the council the Red Hill fuel storage site continues to pose long-term groundwater risks: historic and recent releases have left PFAS and petroleum contaminants detected in shallow and deep monitoring wells, temporary treatment is in place and federal funds are targeted to support longer-term treatment work.
The Honolulu Board of Water Supply told the City Council's infrastructure committee on Nov. 19 that contamination from the Red Hill Bulk Fuel Storage Facility remains a long-term public health and environmental challenge.
Board manager Ernie Lau and engineer Joyce Lin outlined the site's history and recent monitoring results, saying the November 2021 spill contaminated the Red Hill Shaft and prompted shutdowns of that source and nearby Halawa/Aiea wells. Joyce Lin said approximately 93,000 residents on Joint Base Pearl Harbor–Hickam were affected by the 2021 release and that later incidents — including a 2022 AFFF (fire suppression foam) release — added PFAS contamination concerns.
Lin describ…
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