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Dow Silicones Corporation: How This Facility Is Regulated


Dan Dailey

The facility is subject to multiple environmental regulatory programs, carried out by multiple government agencies.  Each agency issues separate permits or licenses under the authority they are assigned under the regulations.  The permit or license issued by each agency identifies what DSC must do to operate properly, to prevent the release of contaminants to the environment, and to limit any allowed discharge of contaminants to levels determined to be protective of human health and the environment.  Each agency requires monitoring and performs independent oversight to ensure the facility is operated in a protective manner that meets the permits and license requirements.  The agencies also share information to ensure compliance.

EGLE, MMD licenses and inspects DSC’s hazardous waste operations, with inspections occurring at least four times per year.  These inspections are typically unannounced and are performed to verify the facility is operating in a manner that meets the license requirements.  The MMD evaluates DSC’s hazardous waste storage, treatment, emergency planning, employee training, and recordkeeping.  For information on EGLEs hazardous waste licensing, inspections, fees, and other oversight for DSC, please see the Waste Data System

EGLE, Air Quality Division (AQD) issues the permit for air emissions from the facility.  The AQD inspects the facility to evaluate compliance with the air quality requirements and reviews the facility’s monitoring data.

EGLE, Water Resources Division issues the permit for the discharge of treated wastewater into the sanitary sewer system, inspects the facility, reviews monitoring data, and conducts sampling of the facility’s discharge.  

Although the United States Environmental Protection Agency (U.S. EPA) does not permit or license the facility, they may also conduct inspections of the facility to verify compliance with air, water, and waste regulations.  The U.S. EPA last conducted an inspection of air emissions from tanks and containers at the facility in 2023.