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

DEEP Bookstore

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  • The DEEP Store

    The DEEP Online Store is the point of distribution for the publications of the Connecticut Geological and Natural History Survey, including the Natural Diversity Database. It also carries a limited selection of titles from various not-for-profit and smaller publishers, as well as U.S. Geological Survey 7.5 minute topographic maps for the entire state.

  • Maps On Demand