From News Slice

NEW YORK TIMES
Tainted Soil to Be Removed Next to Westchester School

By BARBARA WHITAKER
Published: July 4, 2005

In what state health officials call the first cleanup of its kind in the
state, a school district in Westchester County is planning to remove soil
next to an elementary school in Yorktown Heights because the soil is
contaminated by PCB's from caulking in the school's windows.

Dr. Daniel Lefkowitz requested tests on scraps of caulk left after
maintenance at French Hill Elementary School, where his son, Evan, is a
student. The tests found PCB's at 350 times above the federal limit.


The cleanup at French Hill Elementary School, which will cost the district
about $100,000, was prompted by a parent who had scraps of the caulking
tested and found PCB's at 350 times above the federal limit. Soil around the
school also showed evidence of PCB contamination, though at lower levels.
PCB's, or polychlorinated biphenyls, which were banned in 1977, have been
linked to developmental problems in children. School officials have fenced
off parts of the school outside near many of its windows and are seeking
bids from contractors to clean up the contaminated soil. They hope the work
can be completed by the time the children return in September.

A spokesman for the State Department of Health said the cleanup was the
first the agency was aware of involving PCB contamination from caulk. "We're
kind of at the forefront here," said Dennis Verboys, director of facilities
with the Yorktown Central School District. "Had we not had the overzealous
community member, we never would have tested."

Dr. Daniel Lefkowitz, whose 7-year-old son attends the school, raised
questions about possible contamination after reading a 2004 Harvard
University study, which found that PCB's from caulk had contaminated schools
and buildings in the Boston area. Knowing that the school's windows had been
removed and replaced in 2003, and that the building was constructed when
PCB's were used in caulk, Dr. Lefkowitz searched outside the building, found
scraps of caulk left behind and had them tested. Production of PCB's, which
are flame-resistant, was banned in the United States in 1977, but they had
been widely used in caulk and other building materials. Studies have shown
that PCB's can cause developmental problems in infants and in children born
to women exposed to the compounds during pregnancy. PCB's can also pose a
risk of cancer, health experts say.

Westchester County Health Department officials say the contamination at the
school does not present a health risk, but school officials say the
contamination is sufficient under state and federal guidelines to require
the cleanup. Dr. Lefkowitz, a podiatrist, is pressing for further testing at
the school.While there is growing concern among scientists about PCB's in
caulk, many questions remain unanswered. For example, how commonly were
PCB's used in caulk? Are PCB's migrating from the material and contaminating
areas inside and outside buildings where they were used? If so, is the
contamination at a level requiring removal? What are the health risks?

"This is something just coming on the radar screen," said Rich Cahill, a
spokesman for the United States Environmental Protection Agency in the New
York region. "There are efforts to quantify the risk associated with it, but
at this point it's unknown."Robert Herrick, who led the study by the Harvard
School of Public Health, compared the issue to that of lead paint, which was
used for many years, contaminating buildings and homes and causing health
problems in children."PCB's are really potent developmental toxins," he
said. "We want to minimize exposure for kids."

Of 24 buildings tested around Boston in the Harvard study, eight contained
caulking material with PCB's exceeding 50 parts per million, the highest
level allowable under federal guidelines. In addition, PCB levels in the
indoor air and dust taken from the buildings revealed varied levels of
contamination.Dr. Herrick noted that in Finland, studies had found a
correlation between PCB's in caulk and PCB's in the air as well as in the
blood of construction workers handling the materials during renovations. In
Germany, he said, a study found elevated blood levels of PCB's in teachers
working in schools with contaminated caulking. The study recommended random
testing in schools, hospitals and other masonry buildings constructed or
renovated during the time PCB's were used in caulk, commonly from 1960 to
1977.

The caulk was typically used in brick buildings."The E.P.A. requires you to
clean it up if you find it, but they don't require you to look for it," Dr.
Herrick said. "We need to pull together data to determine if there is a
health risk."Little is being done at the state level to address the issue.
The State Education Department has notified schools of the findings in Dr.
Herrick's study through a newsletter. Assemblyman Thomas P. DiNapoli, the
chairman of the Assembly's Committee on Environmental Conservation, said he
was considering sponsoring legislation that would finance a pilot program to
test for contaminated caulk in schools and perhaps other buildings.

But environmental groups expect that advancing such legislation will be
difficult. "What schools have a tendency to do is have a 'don't ask, don't
tell' approach - they're afraid if you find something, then you'll have to
do something about it," said Kathleen Curtis, executive director of the
Citizens' Environmental Coalition, an Albany-based advocacy group. "School
districts are tight on money. There's been a tremendous amount of difficulty
getting a bill passed to test for lead in school water fountains."

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