Clean Harbors will pay a $650,000 penalty and will spend $1,062,500 on a supplemental environmental project.

It is expected that the project, over a two-year period, will be implemented by Clean Harbors, the City of Boston Parks and Recreation Department.

Clean Harbors also will comply with a waste analysis plan to properly categorize and manage the hazardous waste Clean Harbors receives and generates.

Further, Clean Harbors has installed and will maintain a vapor collection system for its tanks that will collect and treat volatile organic compound emissions.

The facility performs hazardous materials management and disposal services including drummed and bulk waste processing and consolidation, transformer decommissioning.

The services also include PCB storage and processing, blending of waste used as supplemental fuel by cement kilns or industrial furnaces, and pretreatment of waste to stabilize it before it is sent to permitted landfills.