The U.S. Environmental Protection Agency announced today that it has reached a settlement with Chevron Products Co. over hazardous waste violations at its former facility in Kapolei. Chevron agreed to pay a $48,000 penalty for the violations.

“Facilities must manage hazardous waste in ways that protect public health and the environment,” said EPA Pacific Southwest enforcement division director Kathleen Johnson in a news release. “Proper hazardous waste handling, storage and reporting help ensure these substances do not harm workers or surrounding communities.”

Chevron, which owned and operated the Kapolei refinery facility until the end of 2016, was fined for improperly characterizing hazardous waste, treating stormwater discharge as non-hazardous, and not identifying cleaning sludge waste as a listed hazardous waste.

In addition, Chevron was fined for failing to include all waste codes on the hazardous waste manifest and not keeping proper records of the type of waste sent to treatment and disposal facilities.

EPA said the proper disposal of hazardous waste is required at a federally permitted disposal site. These facilities must properly store, label, and send hazardous waste to permitted treatment and disposal facilities, EPA said. They must also have properly trained staff, as improperly stored hazardous waste can potentially spill and pose a risk to workers and the environment.