A Giles County company that makes material used in cigarette filters has agreed to pay $60,000 to resolve alleged violations of the federal Clean Air Act.

Celanese Acetate failed to perform a required test of a device that monitors nitrogen oxide emissions on a boiler at its plant in Narrows, according to the U.S. Environmental Protection Agency.

The company also failed to monitor valves, connectors and heat exchangers, failed to repair a leaking connector, failed to cap an open-ended line, and did not include all required information in reports to the EPA.

A company spokeswoman said Celanese had been trying to follow rules that were complex and difficult to interpret. According to a consent agreement, Celanese neither admitted nor denied the findings, which stemmed in part from inspections of the plant last July and August.

The violations did not result in the plant releasing any pollutants above the permitted levels, EPA spokeswoman Terri White said.

The Giles County plant, known as Celanese Celco, ranked 38th in the state for the level of pollutants released into Virginia's land, water and air in 2006, according to a report released earlier this year by the state Department of Environmental Quality.

Since the violations were discovered, Celanese has taken measures to prevent any reoccurrences, company spokeswoman Gretchen Rosswurm said Friday.

"Celanese is committed to excellence in environmental performance and Celanese Acetate has a history of compliance and cooperation with the EPA," the company said in a statement.