During a construction and renovation project,
chemical contamination and improper hazardous
materials management can be the source of many
adverse environmental impacts. Historical
contamination in a health care facility or
mismanagement of C&D waste during a project can open
the door to penalties and fines from both state and
federal environmental agencies. Paperwork trails can
also cause significant compliance headaches, cost
overruns and project delays.
Many hospitals predate the existence of the
Environmental Protection Agency (EPA) or any of its
associated statutes. As a facilities manager, it can
be difficult to know how the laboratory and other
departments are handling hazardous materials now,
never mind how materials management practices were
controlled generations ago. Historical contamination
is extremely common in old hospital buildings and is
a potential budget buster, whether it be in soil,
infrastructures or a workspace targeted for
renovation.
Contamination in internal workspaces or
infrastructures could potentially come from many
more places than one might imagine. Many chemicals
used in the various departments of a hospital can
potentially be a source of historical or chronic
contamination in a health care facility.
If any laboratory space is being renovated
(clinical, pharmacy/oncology or research), for
instance, on-site contractors will often refuse to
work in that laboratory space without written
certification that all surfaces have been properly
decontaminated. The same may be true for any lab
equipment being relocated to new or temporary space.
This might mean bringing in a crew of environmental
specialists to decontaminate the space and provide
written documentation. These services can sometimes
be quite expensive if they are contracted at the
last minute.
Before large-scale demolition begins, it is
necessary to identify what lies in the building
infrastructure. For instance, one of the most
pervasive chemicals on old hospital sites is
mercury. Mercury’s harmful properties are
well-documented and most facilities strive to be
“mercury-free.” However, old cast-iron or glass
piping in buildings generally contain enough mercury
to raise serious concern about contamination unless
every line between the laboratories and the final
discharge has been replaced in recent years.
Mercury can be present not only from historical
use, but from current practices. Occasionally, there
is certain equipment for which staff do not want to
utilize mercury-free alternatives. Laboratory and/or
medical staff are sometimes reluctant to change
procedures for fear of impacting patient care.
Mercury thermometers, for example, are often still
used in laboratories to monitor temperatures in
water baths.
If contractors are surprised by the presence of
mercury, the project could be shut down until a
decontamination occurs. The associated costs of an
urgent decontamination and having contractors on
hold can be significant.
Do not repeat others’ mistakes by tearing down a
building without first removing contaminated piping,
draining cooling systems and removing all window air
conditioners. Damaging this equipment during
demolition can turn large amounts of debris into
hazardous waste. All thermostats, fluorescent lamps
and ballasts should also be removed before bringing
in the heavy equipment. Window casings from older
buildings have a high probability of lead paint and
may need to be removed separately and disposed of as
hazardous waste. Failure to do so can also create
contamination in ordinary construction debris waste.
External contamination may not only entail waste
disposal, but possible impacts to the environment.
This can lead to extensive cleanup costs and fees or
fines issued by state, local and federal agencies.
For instance, if a project includes any type of
excavation, it may impact storm drains. Storm drains
often contain evidence of automotive fluids and, if
not maintained routinely, a disturbed catch basin
can release contaminants into the groundwater and
sewer systems. Likewise, if a project entails
demolition work on or in a parking garage, oil/water
separators must be decontaminated before demolition
to avoid contaminating soil or debris.
Additionally, if any underground storage tank is
being removed, risk of having contaminated soil is
high. Tanks must be properly cleaned before removal
and, if being replaced, must be installed by a
licensed contractor. This will ensure compliance
with state and federal requirements for underground
chemical and oil storage.