Baltimore Gas and Electric Co.'s Wagner plant in Pasadena has been fined $11,250 by the Maryland Department of the Environment for failing an air pollution test last month.
One of the smokestacks at the plant was releasing to many too much particulate matter, according to an MDE spokeswoman.
The standard is .02 grains of particulates per cubic foot of air, and the unit showed .026 grains. Particulates are the part of the fuel that doesn't burn during combustion.
"We were surprised we failed," said John Quinn, supervisor of air management in BGE's environmental affairs unit. He said an internal test done the day before the state agency's test showed the oil-fired unit in compliance.
But that unit, built in 1972, had some operating problems and was scheduled for maintenance. It was taken out of service for several months so that new combustion controls could be installed. The Wagner plant is located off Fort Smallwood Road near Cox Creek.