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Surface Water Quality Polygon
See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes water... -
305b Assessed 2012 River, Lake, Estuary Set
305b Assessed 2012 River, Lake, Estuary set: Connecticut 305b Assessed River 2012 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Shellfish Area Class Poly
Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the... -
LIS Dredged Material Disposal Sites
LIS Dredged Material Disposal Sites is a polygon feature-based layer that depicts the official locations of the four active (currently used) sites for depositing sediments... -
Eelgrass Beds Historic Points
Eelgrass Beds Historic Set: Historic Eelgrass Points is a 1:24,000-scale, point feature-based layer that depicts the locations of historic eelgrass beds (Zostera marina) in Long... -
DEEP Property
See full Data Guide here. DEEP Property is a polygon feature-based layer that includes all land owned in fee simple interest by the State of Connecticut Department of Energy... -
Sewer Service Area 1998
Connecticut Sewer Service Area is 1:24,000-scale, polygon feature-based data that depict sanitary waste water sewer service areas in Connecticut. Most if not all homes and... -
Shellfish Area Classification Set
Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the... -
Subregional Drainage Basin Direction
See full Data Guide here. Subregional Drainage Basic Set: Connecticut Subregional Drainage Basins is 1:24,000-scale, polygon and line feature data that define subregional... -
Hydrography Line
Connecticut Hydrography Set: Connecticut Hydrography Line includes the line features of a layer named Hydrography. Hydrography is a 1:24,000-scale, polygon and line... -
Eelgrass Beds 2009 Points
Eelgrass Beds 2009 Set: This data layer was created by the Conservation Management Institute, Virginia Tech University for the USFWS National Wetlands Inventory, Region 5. The... -
Connecticut Mainland Polygon
Connecticut Mainland Line includes the line features of a layer named Connecticut Mainland. Connecticut Mainland is a 1:24,000-scale, polygon and line feature-based layer that... -
305b Assessed 2006 River, Lake, Estuary Set
305b Assessed 2006 River, Lake, Estuary Set: Connecticut 305b Assessed River 2006 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Connecticut County Index
Connecticut County Index is a general purpose index map of Connecticut counties based on information compiled at 1:125,000 scale (1 inch equals approximately 2 miles). The layer... -
Connecticut Surficial Stratified Drift
These deposits originate from glacial meltwater, either deposited by streams, through settling in glacial lakes or in glacial marine environments. Stratified drift deposits are... -
Bathymetric Contours in Meters for Long Island Sound
The Long Island Sound Study developed these digital data from 1:100,000-scale National Oceanic & Atmospheric Administration (NOAA) and United States Geological Survey (USGS)... -
Environmental Sensitivity Index 2002 Set
Environmental Sensitivity Index 2002 Set: This data set contains vector lines representing the shoreline and coastal habitats of Connecticut classified according to the... -
Eelgrass Beds 2006 Set
Eelgrass Beds 2006 Set: This data layer was created by the USFWS National Wetlands Inventory, Region 5. Delineations of 2006 eelgrass beds were completed on the eastern... -
CT Hurricane Surge Inundation
See full Data Guide here. Worst case Hurricane Surge Inundation areas for category 1 through 4 hurricanes striking the coast of Connecticut. Hurricane surge values were... -
Eelgrass Beds 93-95 Points
Eelgrass Beds 93-95 Set: Eelgrass Sample Points is a 1:24,000-scale, point feature-based layer that depicts the locations where eelgrass (Zostera marina) was either observed or...
