Long Island Sound Water Quality

DEEP is continuing to carry out its mission and provide services while keeping both the public and our workforce safe during the COVID-19 pandemic. Click here for the latest updates on DEEP's response to COVID-19. DEEP COVID-19 Response

Water Quality Monitoring and Hypoxia Monitoring

Hypoxia and Nitrogen Reduction Efforts (NEW)

Nitrogen Control Program for Long Island Sound

Other Related Programs:

EPA Long Island Sound Study
EPA Nutrient Pollution Outreach and Education Materials
NOAA Nutrient Pollution and Hypoxia
USGS New England Water Science Center
Long Island Sound Coastal Observatory
University of Connecticut NEMO Nitrogen Reduction

Long Island Sound General Information

Content last updated October 10, 2019

Connecticut Department of Energy and Environmental Protection