050409  米国ユッカマウンテン計画に関する内部告発と不正疑惑)

 
すでにお伝えしましたように、米国のユッカマウンテン核廃棄物貯蔵所建設計画については、内部告発によりデータ改竄疑惑が持ち上がっており、さなきだに停滞気味の同計画がさらに遅れる可能性が高くなっております。この結果、全米103基の原子炉の使用済み燃料を外に持ち出すことが出来ず、連邦政府(エネルギー省)は、1998年以降の分につき「違約金」を原子力発電業者に対し支払わなければならないという問題も生じており、各地で訴訟が相次いでおります。
この問題については、連日米国のメディアで激しい議論が展開されておりますので、その一部をご紹介します。いずれもWashington Post紙から。ご参考まで。
--KK
 
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E-Mails Reveal Fraud in Nuclear Site Study

By MATTHEW L. WALD

Published: April 2, 2005

WASHINGTON, April 1 - Government employees studying whether Yucca Mountain in Nevada would be a suitable place to bury nuclear waste acknowledged in e-mail messages to each other that they had made up details about how they had done their research in order to appear to meet quality standards, according to some of the messages made public on Friday.

Some of the frank exchanges included instructions to erase them. The Energy Department, which is trying to open a waste repository at the mountain, 100 miles northwest of Las Vegas, disclosed the existence of the e-mail messages two weeks ago. On Friday, a subcommittee of the House Committee on Government Reform released dozens of pages of the messages.

One analyst wrote that a computer program had generated data he could not explain, so he withheld it from the quality assurance department, known as QA.

"Don't look at the last 4 lines. Those are a mystery," wrote the scientist, who the subcommittee said was an employee of the United States Geological Survey, a part of the Interior Department. "I've deleted the lines from the 'official' QA version of the files."

"In the end I keep track of 2 sets of files, the ones that will keep QA happy and the ones that were actually used," he wrote. The message was dated November 1999.

B. John Garrick, the chairman of the Nuclear Waste Technical Review Board, a group of independent experts established by Congress to monitor the Energy Department, said that it was too soon to draw conclusions but that "it is disturbing to see such loosely framed discussions between scientists."

Before releasing the messages, the subcommittee removed the names and titles of the senders and the recipients, and deleted other words that made the full context of some of the messages difficult to ascertain. But the theme was that employees were performing work they did not believe would meet standards set by the quality assurance inspectors, and were sometimes falsifying their work in ways that they believed would satisfy the inspectors.

In a message dated April 22, 1999, a scientist wrote that he did some calculations by hand and that the computer program he wrote, presumably to do those calculations, "is not in the system." He wrote that he feared he would be "taken to the cleaners" by the inspectors because his work did not refer to an established procedure laid out in a scientific notebook, and he asked if he should create such a notebook "and back-date the whole thing??"

The author of another message noted in January 2000 that he could not document the way certain work was done. "I can start making something up, but then the (deleted) projects will need to go on hold," he wrote.

In an e-mail message in March 2000, a government worker wrote that he did not know when software he had used had been installed. "So I've made up the dates and names," he wrote. "If they need more proof I will be happy to make up more stuff, as long as its not a video recording of the software being installed."

The chairman of the panel that released the messages, Representative Jon Porter, Republican of Nevada, pointed out that the Energy Department and the White House had repeatedly said that their recommendation of the Yucca Mountain site was based on "sound science."

"If the project has been based upon science, and the science is not correct, it puts the whole project in jeopardy," said Mr. Porter, a longtime opponent of Yucca Mountain plan. "I believe these e-mails show science is not driving the project; it's expedience to get the job done."

In a well-done scientific investigation, he said, the methods used to derive predictions about crucial factors like water infiltration should be transparent and reproducible.

A lawyer who represents the State of Nevada, Joseph Egan, said that after reading the messages, "you can't even say it's wrong; you have to say it's not reliable."

"You don't know how badly they've fudged this stuff," Mr. Egan said.

Some of the correspondents explicitly discuss problems and say they do not believe that they make any material difference to the ability of the mountain, a volcanic structure on the edge of the Nevada Test Site, to hold the waste for thousands of years.

But the issue of quality control is crucial to the Energy Department because to open a repository, it must win the approval of the Nuclear Regulatory Commission, which has scuttled some projects because of quality assurance problems. In one case in the 1980's, the commission forced the owners of a nuclear reactor to abandon their project, after they had spent nearly $2 billion and when the reactor was said to be 98 percent complete, because of questions about whether some welds had been made properly and inspected adequately by qualified inspectors.

The subcommittee on the federal work force, which released the e-mail messages, plans to hold a hearing on Yucca Mountain on Tuesday. The witnesses include several prominent opponents, including Gov. Kenny Guinn of Nevada and Senator Harry Reid, also of Nevada, the Democratic leader.


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Nuclear Rush in Nevada

Friday, April 8, 2005; Page A24

In his March 27 op-ed, George F. Will favored the dangerous plan to bury the nation's high-level nuclear waste at Yucca Mountain.

The 1983 Nuclear Waste Policy Act envisaged comparing the viability of nine potential sites and ultimately selecting two sites, one in the West and another in the East. Not surprisingly, as candidate localities began to discover the costs and risks of custodianship, political maneuvering began to shorten the list. By 1986 the list was down to three Western sites where rigorous scientific studies of each were supposed to have enabled an informed comparison. By 1987, however, only Yucca Mountain remained, and the government never did the required science to consider even one alternative site.

Without the science, we don't know what we don't know, but Yucca Mountain already has proven less geologically stable than we assumed. One of the fastest-growing cities in the country, Las Vegas, is only 90 miles away. Nevada has no nuclear power plants, and radioactive waste will be shipped from 103 nuclear facilities in other states, mostly in the East. Because of its extreme radioactivity, nuclear waste must first spend five years in a cooling pond at the reactor site of origin before it can be transported. Shipments to Nevada will create a web of plutonium transport routes, increasing the potential targets for terrorists.

Paradoxically, the political pressure to bury nuclear waste at Yucca Mountain has increased. The Energy Department faces billion-dollar lawsuits by the nuclear industry to compensate nuclear power plants for storing waste on site beyond a 1998 deadline that transferred the burden of storing nuclear waste to the federal government. The Bush administration is making the construction of nuclear power plants a cornerstone of its energy policy, but it seems to have lost sight of many quality assurance problems, including retaliatory action against whistle-blowers, and transportation vulnerabilities.

While the United States must find a permanent solution for disposing of nuclear waste, the process must be scientifically sound and transparent. In the meantime, dry-cask storage offers a medium-term storage solution that would contain nuclear waste at facilities safely for 100 years.

LEONOR TOMERO

President

Lawyers Alliance for World Security

Washington

 

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George F. Will's column was on target. I agree both with the logic of that site and his assessment of the hypocrisy of state residents in challenging its selection. The federal government spent billions to employ Nevadans in the construction of that site.

The nation needs this site. Americans everywhere need to get on the bandwagon and support it.

BOB OLSON

Annapolis