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Community urges delay to Aiea/Halawa shaft reactivation as dye tracer and models remain incomplete
Summary
Public commenters and commission members urged the Department of Health and federal regulators to delay reactivating the Aiea/Halawa drinking‑water shaft, citing dye‑tracer results that showed unexpected westerly flow and an incomplete University of Hawaii groundwater model; speakers called for more testing and written justifications before any reactivation.
Public commenters and several commission members on Nov. 19 urged state and federal regulators not to permit reopening the Aiea/Halawa (Aiea Halawa) shaft until additional field work and modeling are completed.
Speakers cited a dye tracer study presented at an earlier meeting and said the tracer’s detected movement was unexpectedly westerly — toward the Aiea/Halawa shaft — rather than the direction assumed in early Navy models. Commenter Susan Grama Chang said the study showed a westerly flow and argued that “there are so many unknowns that it would be negligent to allow the Aiea/Halawa Shaft to be reopened.”
The concern was repeated across multiple testifiers.…
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