Dental Effluent Guidelines

The U.S. EPA communicated pretreatment standards in 2017 to reduce discharges of mercury from dental offices into publicly owned treatment works (POTWs).

Dental offices discharge mercury present in amalgam used for fillings. 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.

The US EPA offers a frequently-asked-questions page on their website.

The City requires all dental offices to comply with the EPA reporting form. Please complete the one-time compliance report below by digitally filling out the form, then print and sign.  You may scan and email the completed and signed form to the Superintendent of Water & Wastewater at, or your may mail the completed and signed form via USPS to the following address:

Geneva Public Works
Attn: Bob VanGyseghem
1800 South St.
Geneva, IL 60134

For more information please visit the US EPA's website on dental effluent guidelines, or call the Water Division at 630-232-1551.