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WIFIA Legislation Signed, Water Infrastructure Loans Can Move Forward

USEPA Finds Widespread Nutrient Pollution in Nation's Lakes



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New Dental Rule Aims to Keep Mercury Out of Wastewater Plants

The U.S. Environmental Protection Agency (USEPA) Administrator Gina McCarthy has signed a rule that aims to keep mercury associated with dental procedures from entering publicly owned wastewater treatment plants. The rule requires dental offices to use separators to remove mercury from amalgam prior to discharging it into the sanitary sewer.

The rule also requires dental offices to adopt two best management practices recommended by the American Dental Association to further prevent mercury from entering the waste stream. One practice prohibits the discharge of scrap and the other prohibits the use of line cleaners that may lead to the dissolution of solid mercury when cleaning chair-side traps and vacuum lines. The USEPA posted the long-awaited rule on its website as well as a fact sheet with more information.  

For more information about how this rule may impact your wastewater treatment operations, contact Scott Schaefer, AE2S Wastewater Practice Leader, at Scott.Schaefer@ae2s.com.


If you have any questions concerning the content of this newsletter,
please contact Heather Syverson at 701-364-9111 or Heather.Syverson@ae2s.com.
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