COVID-19 Community Levels Map Update, September 23, 2022: The Centers for Disease Control and Prevention has listed New Haven, Fairfield, Litchfield, Middlesex, Hartford, Tolland, and Windham Counties in the Medium/Yellow category as part of its COVID-19 Community Levels Map. New London county is listed in the Low/Green categories. Visit the CDC COVID-19 Community Levels Map for updates.

Monkeypox: Please visit our monkeypox webpage for the latest updates.

Haz Waste ImageThe Site Assessments and Chemical Risk Unit addresses health concerns about hazardous waste sites in Connecticut through a Cooperative Agreement grant from the Agency For Toxic Substances and Disease Registry (ATSDR). These sites include: 

  • Superfund National Priorities List (NPL) sites 

  • State Superfund sites 

  • Brownfields sites 

  • Landfills

  • Other locations with contamination

The Site Assessments and Chemical Risk Unit evaluates environmental data and provides education to address the public health impacts from exposure to hazardous substances at sites.


Locations where CTDPH has evaluated exposure to contamination.


Special Projects

SAFER Day Care Program: An initiative to ensure safe day care centers by identifying/addressing contamination at or near new or operating daycares, and to help daycares be environmentally safe & green in their operation.


Are There Contaminated Sites in Your Community? Workshop (11/15/2013)





  • Health Questions (860) 509-7740

  • Information about specific hazardous waste sites (CT DEP) (860) 424-3705