WASHINGTON — A scientist at the center of a
controversy over potential falsification of documents about the Yucca Mountain
nuclear waste dump insisted before Congress on Wednesday that he did not alter
paperwork on the project.
"I have never falsified any documents related to Yucca Mountain or any
other project," Joseph Hevesi, a United States Geological Survey
hydrologist in Sacramento, told a House Government Reform subcommittee.
The panel is investigating e-mails written by Hevesi and other scientists that,
according to critics, seem to suggest they changed work to reach a predetermined
conclusion. The existence of the e-mails, written between 1998 and 2000, was
made public by the Energy Department in March.
Hevesi was appearing under subpoena before the panel chaired by Rep. Jon Porter,
R-Nev.
Before testifying, the thin, gray-haired scientist sat alone at the witness
table with his hands clasped, occasionally shifting in his seat, as Porter read
portions of e-mails Hevesi had written.
Among them: "In the end I keep track of two sets of files, the ones that
will keep QA happy and the ones that were actually used." QA refers to
quality assurance.
Explaining that message, Hevesi said that the only difference between the two
sets was that the set for quality assurance had a header field.
"All the numbers in those files are identical, so in essence they are
identical files," Hevesi said.
He said he never felt pressure from his managers to reach a specific result, and
defended the work he and his colleagues were doing.
"I feel the work is sound, and I realize it doesn't seem that way with
these e-mails," Hevesi told lawmakers. "The e-mails I characterize,
myself, as being water-cooler talk, and I would not do that again in
hindsight."
Hevesi and others were studying how water moved through the desert site 90 miles
northwest of Las Vegas where the government wants to store 77,000 tons of
commercial and defense nuclear waste for at least 10,000 years. The USGS
validated Energy Department conclusions that water seepage was relatively slow,
so radiation would be less likely to escape.
A planned completion date of 2010 for the Yucca project was recently abandoned
by Energy Department officials.
Hevesi said he did feel pressure to meet deadlines and did wish for more
resources. But he described his frustration as a natural conflict between the
approach of scientists and the approach of project managers.
"There were deadlines that would require a more simplified approach to
solving a scientific issue, but that's always going to be the case," Hevesi
said. "As a scientist, we have a tendency to put too many resources into a
problem because we're after the right answer, which is the true answer, and in
many cases you can never get to that point."
"I placed things in e-mails out of emotional response," Hevesi said.
He encountered skepticism from Porter, who like the rest of Nevada's
congressional delegation is trying to stop the Yucca project. Other subcommittee
members were more sympathetic.
"Even members of Congress, if someone had to look at all our e-mails they
might have a field day," said Rep. Elijah Cummings, D-Md.
The e-mails are under investigation by the inspectors general of the Energy
Department and the U.S. Geological Survey, with help from the FBI. Hevesi said
the ongoing investigations were the reason he refused to meet voluntarily with
the subcommittee.
Source: Associated Press