WASHINGTON — A malfunctioning water heater is to blame for high levels of carbon monoxide Tuesday at PemBridge Square apartments in Wheaton, Maryland.
A carbon monoxide detector alerted a resident to the problem at the apartment building at 2318 Blueridge Ave. around 2:30 a.m.
The building was evacuated.
Montgomery County Fire and Rescue spokesman Pete Piringer said the carbon monoxide was detected in two apartments.
Fire crews traced the problem to a malfunctioning water heater on the second floor.
Paramedics evaluated 10 people on the scene, including several children.
Residents were allowed back in around 4:30 a.m.