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Critics say Navy fuel tanks threaten crucial Hawaii aquifer

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    Anthony DeLuze talks about the Navy’s fuel tanks while working at his taro farm in Aiea, Hawaii. Some residents including DeLuze and local water utility officials want the Navy to move 20 World War II-era tanks that sit on top of one Honolulu’s most important aquifers, but the Navy views the tanks as a vital strategic asset that would be difficult to replicate elsewhere.

Anthony DeLuze keeps his ancestors’ traditions alive in 21st century Hawaii by growing the staple crop taro on a suburban plot sandwiched between wings of a sprawling shopping mall.

But the aquifer that hydrates his starchy vegetables sits under 20 enormous underground tanks the Navy uses to store fuel for military ships and aircraft. One tank leaked tens of thousands of gallons of jet fuel into the ground in 2014, worrying DeLuze the tanks are a threat to his farm’s natural springs and well.

The aquifer also supplies a quarter of the water consumed in urban Honolulu, which includes the tourist mecca Waikiki.

DeLuze and Honolulu water utility officials want the Navy to move the World War II-era tanks away from the aquifer. But the Navy views them as a vital strategic asset that would be difficult to replicate elsewhere.

Plus, the Navy says the water is safe.

“It makes no sense to me that one of the biggest aquifers on this island has fuel sitting on top of it,” DeLuze said. “Anything can happen — could have an earthquake, could be a disaster, and we’re screwed.”

Each of the underground fuel tanks is about 25 stories tall. The tanks sit in two rows of 10 inside a hill about 3 miles from Pearl Harbor. They hold a total of about 187 million gallons of fuel, providing the military with a vital fuel reserve in the Pacific. Two are currently out of service.

Navy Region Hawaii commander Rear Adm. John Fuller said the tanks are the last fully U.S.-owned fuel stop for forces en route from the West Coast and Hawaii to Asia and the Middle East.

“If we don’t have the fuel to operate the forces, then we can’t be present. We can’t help our friends,” Fuller said.

The Navy is working on a 20-year plan, codified in a signed agreement with the U.S. Environmental Protection Agency and the state Health Department, to upgrade the 70-year-old tanks and better prevent and detect leaks.

As part of the deal, the Navy is building four new wells to monitor groundwater for contaminants by the end of the year. This will add to the 10 monitoring wells it already has. The Navy conducts quarterly and monthly testing at these wells, said Capt. Dean Tufts, commanding officer of Naval Facilities and Engineering Command, Hawaii.

“Fuel is not moving toward drinking water sources. And fuel is not in the aquifer at all,” Tufts told The Associated Press in an interview.

Officials with the Honolulu Board of Water Supply, the city’s water utility, say its water is safe to drink. But they point to Navy studies from the ’80s through the late ’90s showing petroleum hydrocarbon in the rocks underneath the tanks as a sign of the tanks’ risks. They’re worried about the possibility of an extremely large release of fuel due to a catastrophic event, in part because the tanks are so old.

As an island state, Hawaii can’t import water from a neighbor if the fuel enters the water supply, said Ernest Lau, the utility’s manager and chief engineer.

“We live on an island. Every drop of pure fresh water is precious to us,” Lau said. He argues a better place for the tanks is about 20 miles west at Campbell Industrial Park, where a hard rock covering insulates the aquifer below.

Honolulu could install a treatment system to remove fuel contaminants, but that would be expensive, and ratepayers would have to foot the bill unless the utility could force the federal government to pay for it, Lau said.

The utility hasn’t said how much it would cost to build a treatment system. But a 2010 Navy study estimated the price for installing one for the Navy’s Red Hill shaft near the tanks would be between $46 million and $51 million. The study estimated the facility would cost $6 million to $7 million a year to operate.

Part of the difficulty is the uncertainty over where the leaked petroleum is heading and where future leaks might go.

Steve Linder, manager of the underground storage tanks program at the EPA region that includes Hawaii, said data doesn’t indicate alarming signs of fuel in the groundwater or show an imminent threat to drinking water supply wells.

But he said more research would provide certainty and comfort.

“That’s what we’re looking for — getting a higher degree of understanding, a higher degree of certainty so we can make more informed decisions about what needs to happen in terms of release prevention in the future and what needs to happen in terms of mitigation of a problem that may already exist,” Linder said.

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  • those were the fuel tanks that were above ground when the Japanese bombed pearl harbor and were put underground after the attack, as adm. Nimitz said the three mistakes the Japanese did when they bombed pearl harbor was they did not go after the fuel tanks and the dry docks I forget what the third one was that they miss in bombing pearl harbor.

    • 64hoo, thanks for reminding me of this. …Read about it years ago .

      “Mistake number one: the Japanese attacked on Sunday morning. Nine out of every ten crewmen of those ships were ashore on leave. If those same ships had been lured to sea and been sunk–we would have lost 38,000 men instead of 3,800.

      Mistake number two: when the Japanese saw all those battleships lined in a row, they got so carried away sinking those battleships, they never once bombed our dry docks opposite those ships. If they had destroyed our dry docks, we would have had to tow everyone of those ships to America to be repaired. As it is now, the ships are in shallow water and can be raised. One tug can pull them over to the dry docks, and we can have them repaired and at sea by the time we could have towed them to America. And I already have crews ashore anxious to man those ships.

      Mistake number three: every drop of fuel in the Pacific theater of war is in top of the ground storage tanks five miles away over that hill. One attack plane could have strafed those tanks and destroyed our fuel supply. That’s why I say the Japanese made three of the biggest mistakes an attack force could make or God was taking care of America.”

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