A Lancaster waste-treatment company has been fined $35,000 for discharging industrial wastewater pollutants to Lancaster city's wastewater treatment plant.
Armstrong Environmental Services, at 205 Greenfield Road, has agreed to pay the fine and take actions to minimize the likelihood of future violations, according to the U.S. Environmental Protection Agency.
EPA said Armstrong, which is not associated with Armstrong World Industries, exceeded its permit limits for acidity levels, copper and oil and grease over five years.
As part of the agreement, Armstrong did not admit liability for the alleged violations but has certified that it is now in compliance with applicable Clean Water Act requirements.
Armstrong, founded in 1935, processes and disposes of a variety of municipal and industrial liquid and solid wastes for its customers.
The alleged violations occurred at the company's waste-processing and disposal facility in Lancaster.
The federal Clean Water Act requires companies discharging pollutants to publicly owned wastewater treatment works to obtain a permit limiting the amount of pollution that may be discharged to the plant.
This usually requires some type of pretreatment by the discharging facility.
Pretreatment permit limits are set for pollutants to prevent pollution of waterways caused by pollutants passing through the treatment plant or interference with the functioning of the treatment plant, EPA said.