NEW EPA DENTAL AMALGAM RULE
On July 14, 2017, the EPA finalized a federal rule
requiring all dental clinics that handle amalgam to install and maintain amalgam separators and follow best management practices to keep amalgam out of the drain. Many of the requirements in this rule overlap with MMSD's existing requirements for dental clinics, so if your clinic is already following all of MMSD's requirements, you are already in compliance with much of this rule. However, there are still some differences between the EPA rule and MMSD's program, so there will be some additional actions you will need to take.
MMSD has created an explanatory document
for local dental clinics to help clarify the similarities and differences between the local requirements and new EPA requirements, and what actions local clinics need to take as a result of the EPA rule. MMSD will be sending out the required One-Time Compliance report in August 2018. If you have any questions or concerns about local or federal amalgam requirements, please contact Emily Jones (EmilyJ@madsewer.org
) or Catherine Harris (CatherineH@madsewer.org
Dental clinics have played a central role in MMSD’s mercury minimization program. Because dental amalgam was one of the largest sources of mercury in the wastewater to the treatment plant, MMSD worked with dental offices to reduce amalgam contributions to the sewer system.
The cooperation paid off: since the deadline for dental offices to install amalgam separators, MMSD has seen a significant decrease in the incoming and outgoing mercury at the treatment plant. MMSD continues to work with dental offices through annual certification reports and periodic site visits to ensure that mercury reductions persist.