Dental Mercury

Dental offices have the potential to discharge mercury present in old amalgam fillings.  As a result, the Environmental Protection Agency (EPA) published Effluent Limitations Guidelines and Standards for the Dental Category that took effect on July 14, 2017. This rule applies to all dental offices that place, remove or work on mercury amalgam fillings and discharge to the City of Elkhart wastewater treatment plant.  The regulation is codified at 40 CFR Part 441.

Amalgam separators are a practical, affordable and readily available technology for capturing mercury and other metals before they are discharged into sewers that drain to POTWs. Once captured by a separator, mercury can be recycled.

As a part of 40 CFR Part 441, dental offices are required to submit a one-time compliance report to Elkhart Public Works & Utilities to let us know that you are meeting the requirements of the federal rules.   If you have an existing dental practice and have not filled out the form, please submit the form to the Elkhart Public Works & Utilities by October 12, 2020.

For more information follow the link below.

Dental Amalgam Rule One-Time Compliance Report (Due by October 12, 2020 for existing establisments).  New establishments please refer to 40 CFR Part 441 for applicable deadlines. 
Effluent Limitations Guidelines and Standards for the Dental Category
City of Elkhart Mercury PowerPoint Presentation 

Inventory of Best Management Practices for Mercury Waste Management in Dental Offices

Draft Best Management Practices for Mercury Waste Management in Dental Offices

Mercury Survey for Dental Offices

American Dental Association's Best Management Practices for Amalgam Waste

Table 5-2. Impact of BMPs on Mercury Discharged to POTW taken from EPA's Health Services Industry Detailed Study - Dental Amalgam