County health officials have called in federal
investigators to examine the indoor air quality at the
Great Wolf Lodge in Mason, Ohio, after a series of
complaints from visitors with respiratory illnesses.
Approximately 180 complaints have been logged, with
about 600 people claiming flulike symptoms, rashes, coughs
and respiratory problems after visiting the resort, said
Daniel Collins, director of environmental health at the
Warren County Health Department in Lebanon, Ohio.
After finding chlorine levels at normal parameters and
air tests passable, the health department called in the
National Institute of Occupational Safety and Health for
further testing. NIOSH is the only agency that can test for
dichloramines and trichloramines in the air, Collins said.
Chloramines are chlorine byproducts created when organic
matter, such as skin and body fluids, react with
While the number of complaints appears high, the
percentage of guests calling is low, Collins pointed out.
?Out of about 60,000 people, it?s less than
1 percent,? he said. Great Wolf Lodge peaks every
weekend at about 3,000 guests, with around 20
The number, however, was enough concern for the health
department to investigate.
The resort has reduced its chlorine levels and limited
patron usage of the hot tubs to 15 minutes.
In addition, its ventilation capacity is 3.7 times more
than the minimum required by the state code, according to a
statement from Great Wolf Lodge.
More than just adjusting the vents and chemical levels
is necessary to combat the problem, Collins said. Better
patron hygiene must be enforced as well. People should take
showers before entering the water, and avoid allowing
children to urinate in the pools. NIOSH is expected to have
recommendations after its investigation.