Skip to main content
Safety-Kleen Systems, Inc., corrective action

Safety-Kleen Systems, Inc., corrective action

The Safety-Kleen Systems, Inc. (Safety-Kleen), Mason Service Center at 700 Zimmerman Boulevard, Mason, Michigan (facility), in Ingham County, has been in operation since January 29, 1985. The facility occupies approximately 5.4 acres and is bounded on the east by a north-south trending railroad easement that divides the Safety-Kleen property from Mason Street and City of Mason properties, including the City dump/landfill.

Safety-Kleen operates both a Branch and Accumulation Center at this location (collectively referred to as a Service Center). The Service Center accumulates and transfers mineral spirits, immersion cleaner, dry-cleaning fluids and other containerized waste generated by Safety-Kleen customers. From the Service Center, all wastes are shipped to appropriately permitted processing or disposal facilities.

A series of environmental investigations at the facility identified concentrations of contaminants, primarily volatile organic compounds (VOC), in site soils and groundwater above Michigan's cleanup criteria. Safety-Kleen implemented corrective action at the Mason site to reduce or eliminate potential threats to human health or the environment by removing sources of contamination and eliminating pathways that could contaminate groundwater. These corrective actions included excavation and removal of contaminated solids, soil vapor extraction to remove VOCs from soil and groundwater, groundwater collection and treatment to contain and treat contaminated groundwater, in-situ treatment of groundwater by chemical oxidation, and groundwater monitoring.

Aerial view of Safety Kleen Service Center outlined in red Aerial view of Safety Kleen Service Center outlined in red

Safety-Kleen submitted a proposed Corrective Measures Implementation (CMI), Report on December 23, 2023.  EGLE reviewed the CMI Report and approved the CMI Report on September 30, 2025.  Safety-Kleen completed corrective measures through implementation of an offsite Restrictive Covenant for groundwater use on a portion of the City of Mason property and an onsite Restrictive Covenant to address the Volatilization to Indoor Air Pathway.  The Restrictive Covenants are Corrective Actions that have been implemented for approval of this CMI Report and are enforced through a Corrective Action Long Term Agreement (CALTA).  The offsite Restrictive Covenant on the City of Mason dump property was recorded by Ingham County on October 16, 2023, and the onsite Restrictive Covenant was recorded with Ingham County on July 31, 2024.

Background information

Safety-Kleen CMI Report: 

How to stay connected

Complete this form to be placed on the official Safety-Kleen, Mason Facility mailing list to receive required notifications from both EGLE and the Safety-Kleen, Mason Facility.

Through your observations and reporting of activities of concern, you play a valuable role in helping the EGLE protect human health and the environment. To file a complaint or share details about improper waste handling or disposal, contact EGLE through the Pollution Emergency Alerting System (PEAS) Hotline at 800-292-4706.

Contact us

Joe Rogers, RogersJ5@Michigan.gov, 517-599-5312