Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Groton Fort Griswold
Groton Fort Griswold site picture

Site Information

  • EPA site number: 09-011-0124
  • Town: Groton
  • County: New London
  • Year established: 2007
  • Site coordinates:
    • Latitude: 41° 21' 13" (41.353475°)
    • Longitude: -72° 04' 44"  (-72.078855°)
    • Elevation: 37 m (120 ft)
  • Parameters currently being monitored:
    • Pollution parameters:
      • Ozone (O3)
      • Fine Particulates (PM2.5)
    • Meteorological parameters:
      • Temperature
Content Last Updated October 18, 2016