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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... -
Tidal Wetlands 1990s
In 1995 it was recognized that current Connecticut tidal wetland boundary information was critical to ensure the appropriate management and protection of the tidal wetlands... -
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 and... -
Soil Survey Geographic Database (SSURGO) Hydric Soils
See full Data Guide here. Hydric soils are defined as soils that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop... -
Drainage Basin Lines
See full Data Guide here. Drainage Basin Set: Connecticut Drainage Basins is 1:24,000-scale, polygon and line feature data that define natural drainage areas in Connecticut.... -
Lake Bathymetry Contours Polygon
See full Data Guide here. Lake Bathymetry describes the water depth for selected reservoirs, lakes, ponds, and coves in Connecticut. It includes depth contours, also called... -
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... -
Cross Country Skiing Permitted
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal parks and... -
Connecticut Polygon
Connecticut State Line includes the line features of a layer named Connecticut. Connecticut is a 1:24,000-scale, polygon and line feature-based layer that depicts the geographic... -
Connecticut Towns Set
Connecticut Town Line includes the line features of a layer named Town. Town is a 1:24,000-scale, polygon and line feature-based layer that includes state, county and town... -
Critical Habitats
See full Data Guide here. Connecticut Critical Habitats is a polygon feature-based layer with a resolution of +/- 10 meters that represents significant natural community types... -
Impaired Lake 2014
Connecticut 303(d) Impaired Waters 2014 is a subset of Connecticut 305(b) Assessed Waters 2014. If any one of the assigned designated uses is categorized as NOT Supporting, the... -
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... -
305b Assessed Estuary 2016
305b Assessed 2016 River Lake Estuary Bed: Connecticut 305b Assessed River 2016 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Impaired 2008 River Lake Estuary Set
Connecticut 303(d) Impaired Waters 2008 is a subset of Connecticut 305(b) Assessed Waters 2008. If any one of the assigned designated uses is categorized as NOT Supporting, the...
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