Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford is currently closed due to recent water damage impacting multiple areas of the building. We are working to remediate the situation and get the building back open to staff and the public as soon as possible. While the building is closed, Staff continue to work either remotely or in alternate locations. We continue to be able to receive documents via U.S. Mail or courier service, and our electronic file submittal protocols remain unchanged. For updates, please click here

Dissolved Oxygen Maps for Summer 1991

In the summer of 1991 four surveys were conducted between July 8 and September 12.  The maximum area affected by Hypoxia during this time was 330 square kilometers (127 square miles). The entire hypoxic event lasted for 41 days from July 19 to August 28.

(Select  map below to link to a larger image)

Link to larger image of hypoxia map for July 8-18, 1991

July 8-18, 1991 		Link to larger image of hypoxia map for July 29 to August 13, 1991

July 29 - August 13, 1991 		Link to larger image of hypoxia map for August 21-28, 1991

August 21-28, 1991
 
Link to larger image of hypoxia map for September 4-12, 1991

September 4-12, 1991

Long Island Sound Water Quality Monitoring