The US Department of Defense will permanently shut down the Navy’s massive fuel tank facility in Hawaii that leaked petroleum into Pearl Harbor’s tap water, and will remove all the fuel, The Associated Press has learned.
A senior defence official said the decision, which Secretary of Defense Lloyd Austin made Monday, is based on a new Pentagon assessment, but also is in line with an order from Hawaii’s Department of Health to drain fuel from the tanks at the Red Hill Bulk Fuel Storage Facility.
The tanks, built into the side of a mountain during World War II to protect them from enemy attack, had leaked into a drinking water well and contaminated water at Pearl Harbor homes and offices.
Nearly 6,000 people, mostly those living in military housing at or near Joint Base Pearl Harbor-Hickam were sickened, seeking treatment for nausea, headaches, rashes, and other ailments. And 4,000 military families were forced out of their homes and are in hotels.
The defence official said Austin was speaking with Hawaii government leaders on Monday to inform them of the decision, which he believes will protect the population and the environment and will also lay the groundwork for a more secure military fuelling system.
The military, which has relied in part on fuel from the Hawaii tanks, will now move to a more dispersed fuelling system for military ships and aircraft in the Indo-Pacific.
Based on the new assessment, the expanded system will be more cost-effective and provide greater security by spreading the fuel supply more broadly across the region, said the official, who spoke on condition of anonymity to discuss a decision not yet made public.
The new plan, laid out in recommendations delivered to Austin by a study group, would increase the fuel contracts that the US has with other territories and nations in the Indo-Pacific, and add several more fuelling ships that are based at sea. There are currently about a dozen fuelling ships, and several more would have to be built.
An assessment team that had been studying how to make the tanks safe to operate, will now shift and determine how to shut the tanks down and remove the fuel in an environmentally safe way. The team must report back to Austin by the end of April with recommendations.
The official said that once steps are taken to ensure the tanks can be safely emptied, the defuelling will begin. It is expected to take about a year, so the entire process could be finished sometime next year. Austin has asked the Navy secretary to plan a budget for all necessary corrective action for any prior releases from the facility.
The tanks can hold 946 million litres (250 million gallons) of fuel, and they are at less than half capacity right now.
The giant US government fuel storage installation, which has provided fuel to military ships and planes crisscrossing the Pacific Ocean since World War II, was a secret for years. The 20 fuel tanks were built into the mountain ridge to protect them from aerial attacks. Each tank is about the height of a 25-storey building and can hold 47.3 million litres (12.5 million gallons).
The tanks are connected to underground pipelines that send fuel about four kilometres (2.5 miles) to Pearl Harbor and to ships and planes used by the Air Force, Army, Coast Guard, Marines and Navy.
The Navy has not determined how petroleum got in the water. Officials are investigating a theory that jet fuel spilled from a ruptured pipe last May and somehow entered a fire suppression system drainpipe. They suspect fuel then leaked from the second pipe on November 20, sending it into the drinking water well.
Once the leak was discovered, Hawaii state officials and members of Congress immediately began to demand the facility be shut down.
The Navy in early February appealed that order, and at the time Deputy Secretary of Defense Kathleen Hicks said the appeal would give the military time “to make evidence-based and transparent decisions”.
The team doing the analysis delivered the alternative fuelling recommendations to Austin. The official said that it is not yet clear what the final cost will be.