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

Cornwall Mohawk Mountain
Mohawk Mountain site picture

Site Information

  • EPA site number: 09-005-0005
  • Town: Cornwall
  • County: Litchfield
  • Year established: 1988
  • Site coordinates:
    • Latitude: 41° 49' 17" (41.821357°)
    • Longitude: -73° 17' 50" (-73.297237°)
    • Elevation: 513 m (1683 ft)
  • Parameters currently being monitored:
    • Pollution parameters:
      • Ozone (O3) Year Round
      • Fine Particulates (PM2.5) 
      • Speciated Fine Particulates (PM2.5 Speciation)
      • Fine and Coarse Particulates (PM10)
      • Sulfur Dioxide (SO2)
      • Carbon Monoxide (CO)
      • Nitrogen Oxides (NO, NOy)
      • Black Carbon (BC)
    • Meteorological parameters:
      • Wind Speed
      • Wind Direction
      • Temperature
      • Dew Point
      • Barometric Pressure
      • Solar Radiation
Content Last Updated July 26, 2017