Map and Image Services | Connecticut Environmental Conditions Online | A PARTERNSHIP BETWEEN UCONN & CT DEEP | University of Con

Map and Image Services | Connecticut Environmental Conditions Online | A PARTERNSHIP BETWEEN UCONN & CT DEEP | University of Connecticut
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UConn
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Search University of Connecticut
Site A-Z
UConn A-Z
Map and Image Services are a means of dynamically accessing GIS data over the Internet. This is an advanced section of the CT ECO website meant for GIS software users interested in using services from CT ECO with their own GIS software and geographic data.
Scroll down the list of
aerial
imagery
and
elevation
Notice that most Map Services contain multiple layers. After adding the map service to your GIS, expand the group and turn on (check) the data layers.
Aerial Imagery
Imagery - Spring Statewide
2023 Spring 4 band, 3inch
2023 Spring 4 band, 3inch
Server URL for dynamic image service:
Server URL for cached service:
Layer List
2023 Spring Imagery
Metadata
xml format
) |
More about the
2023 flight
2019 Spring 4 band, 6inch
2019 Spring 4 band, 6inch
Server URL for dynamic image service:
This service has a stretch applied for better viewing. Change to NIR or remove stretch with raster functions in
ArcGIS Online
ArcMap
or
ArcGIS Pro
Server URL for cached service:
help:
dynamic vs tiled/cached service
Server URL for 4-band dynamic service:
This service is the original, 4-band imagery and is best for connecting in a GIS.
Layer List
2019 Spring Imagery
Metadata
More about the
2019 flight
2016 Spring 4 band, 3inch
2016 Spring 4 band, 3inch
Server URL for dynamic image service:
Server URL for cached image service:
help: dynamic vs tiled/cached service
Layer List
2016 Spring Imagery
Metadata
More about the
2016 flight
2012 Spring 4 band, 1ft
2012 Spring 4 band, 1ft
Server URL for dynamic image service:
Server URL for cached image service:
Layer List
2012 Spring Imagery
Data Guide
Metadata
More about the
2012 flight
2004 Spring, black & white, 1ft
2004 Spring, black & white, 1ft
Server URL (image service):
Layer List
2004 Spring Black and White Imagery
Data Guide
Metadata
1990 Spring, black & white, 1m
1990 Spring, black & white, 1m
Server URL (image service):
Layer List
1990 Spring Black and White Imagery
Data Guide
Metadata
Imagery - Summer Statewide
2023 NAIP Summer, 4 band, 0.3m
2023 NAIP Summer, 4 band, 0.3m
Server URL (image service):
Layer List
2023 NAIP Summer Imagery
Capture dates
: The eastern part of the state was captured in September and the western part of the state was captured in late October and November. Visit the
USDA NAIP 2023 Connecticut Image Dates
for specifics.
For more about NAIP, visit the
NAIP Geohub
2021 NAIP Summer, 4 band, 0.6m
2021 NAIP Summer, 4 band, 0.6m
Server URL (image service):
Layer List
2021 NAIP Summer Imagery
Capture dates
: The eastern part of the state was captured in September and the western part of the state was captured in late October and November. Visit the
USDA NAIP 2021 Connecticut Image Dates service
for specifics.
For more about NAIP, visit the
NAIP Geohub
2018 NAIP Summer, 4 band, 0.6m
2018 NAIP Summer, 4 band, 0.6m
Server URL (image service):
Layer List
2018 NAIP Summer Imagery
Metadata (txt file)
2016 NAIP Summer, 4 band, 0.6m
2016 NAIP Summer, 4 band, 0.6m
Server URL (image service):
Layer List
2016 NAIP Summer Imagery
Metadata (txt file)
2014 NAIP Summer, 4 band, 1m
2014 NAIP Summer, 4 band, 1m
Server URL (image service):
Layer List
2014 NAIP Summer Imagery
Metadata (txt file)
2012 NAIP Summer, 4 band, 1m
2012 NAIP Summer, 4 band, 1m
Server URL (image service):
Layer List
2012 NAIP Summer Imagery
Data Guide
Metadata (txt file)
2010 NAIP Summer, 4 band, 1m
2010 NAIP Summer, 4 band, 1m
Server URL (image service):
Layer List
2010 NAIP Summer Imagery
Data Guide
Metadata
2008 NAIP Summer, 4 band, 1m
2008 NAIP Summer, 4 band, 1m
Server URL (image service):
Layer List
2008 NAIP Summer Imagery
Data Guide
Metadata
2006 NAIP Summer Imagery, 3 band, 1m
2006 NAIP Summer Imagery, 3 band, 1m
Server URL (image service):
Layer List
2006 NAIP Summer Imagery
Data Guide
Metadata
Imagery - Historic
1934 Scanned Aerial Photography Mosaic
1934 Scanned Aerial Photography Mosaic
Server URL (image service):
Layer List
1934 Scanned Aerial Photography Mosaic
More Info
Imagery - Coastal
2017 Eastern Coast, 4 band, 1ft
2017 Eastern Coast, 4 band, 1ft
Server URL (image service):
Layer List
2017 Eastern Coast Aerial Imagery
More Info
Metadata
2016 Coastal Summer, 4 band, 6inch
2016 Coastal Summer, 4 band, 6inch
Server URL (image service):
Layer List
2016 Coastal Summer Aerial Imagery
Data Guide
Metadata
2010 Coastal Summer, 4 band, 1ft
2010 Coastal Summer, 4 band, 1ft
Server URL (image service):
Layer List
2010 Coastal Summer Aerial Imagery
Data Guide
Metadata
2005 Coastal Summer Infrared, 3 band, 1ft
2005 Coastal Summer Infrared, 3 band, 1ft
Server URL (image service):
Layer List
2005 Coastal Summer Infrared Imagery
Data Guide
Metadata
2004 Coastal Summer, 4 band, 0.5m
2004 Coastal Summer, 4 band, 0.5m
Server URL (image service): Color
Server URL (image service): Infrared
Layer List
2004 Coastal Summer Imagery
Data Guide
Color Metadata
Infrared Metadata
2004 Coastal Summer Infrared, 3 band, 0.5m
2004 Coastal Summer Infrared, 3 band, 0.5m
Server URL (image service):
Layer List
2004 Coastal Summer Infrared Imagery
Data Guide
Metadata
Imagery - Other Areas
2009 CRCOG Spring, color, 3″
2009 CRCOG Spring, color, 3"
Server URL:
Layer List
2009 CRCOG Spring Aerial Imagery
Data Guide
Metadata
2008 Urban Area, Spring, color, 1ft
2008 Urban Area, Spring, color, 1ft
Server URL:
Layer List
2008 Urban Area Spring Aerial Imagery
Data Guide
Metadata
Elevation
Elevation Layers from 2023
Aspect (from Statewide 2023 DEM)
Aspect (Statewide 2023)
Server URL (image service):
Layer List
Aspect
DEM Metadata
xml
Elevation Explained
Under the Hood - Aspect
More about the
2023 flight
Hillshade (from Statewide 2023 DEM)
Hillshade (Statewide 2023)
Server URL (image service):
Layer List
Hillshade
DEM Metadata
xml
Elevation Explained
Under the Hood - Hillshade
Apply Raster Functions to Change Hillshade Illumination
More about the
2023 flight
Intensity (from Statewide 2023 Lidar)
Intensity (Statewide 2023)
Server URL (image service):
Layer List
Intensity2023
Classified Point Cloud Metadata
xml
More about the
2023 flight
Shaded Relief (from Statewide 2023 DEM)
Shaded Relief (Statewide 2023)
Server URL (image service):
Layer List
Shaded Relief
DEM Metadata
xml
Elevation Explained
Under the Hood - Shaded Relief
More about the
2023 flight
Shaded Relief without Adjustment (from Statewide 2023 DEM)
Shaded Relief no Adjustment (Statewide 2023)
Server URL (image service):
Layer List
Shaded Relief (no adjustment)
DEM Metadata
xml
Elevation Explained
Under the Hood - Shaded Relief
More about the
2023 flight
Slope (from Statewide 2023 DEM)
Slope (Statewide 2023)
Server URL (image service):
Layer List
Slope
Metadata
xml
Elevation Explained
Under the Hood - Slope
More about the
2023 flight
Elevation (Statewide 2023 DEM)
Elevation (Statewide 2023)
Server URL (image service):
Server URL for use with
raster functions
(image service):
Layer List
Elevation
Metadata
xml
(use download tool)
More about the
2023 flight
Contours (2023)
Contours (2023)
Server URL (vector tile service):
Layer List
2023 Connecticut Contours
Metadata
xml
2023 Contours on the CT Geodata Portal
Elevation Layers from 2016
Contours (2016)
Contours (2016)
Server URL (map service):
Layer List
2016 Contours
Metadata (2016 Lidar)
Statewide, 1 foot contours created from the 2016 Lidar are served as a tiled service and a dynamic service with labels. The tiled service is signficantly faster.
Aspect, Hillshade, Shaded Relief, Slope
Aspect, Hillshade, Shaded Relief, Slope
The 2016 elevation derivatives including aspect, hillshade, shaded relief, and slope are no long published as separate services but can be access using Processing Templates included with the Statewide 2016 service. Visit the
Raster Processing Templates: Accessing and Applying for Elevation
page for more information and how to apply them.
More about the
2016 flight
Elevation (Statewide 2016 DEM)
Elevation (Statewide 2016)
Server URL (image service):
Server URL for use with
raster functions
(image service):
Layer List
Elevation
Metadata
More about the
2016 flight
Elevation Layers Before 2016
Central Connecticut DEM 2014
Central Connecticut Elevation 2014
Server URL (image service):
Layer List
Central 2014
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Coastal Connecticut 2012
Coastal Connecticut Elevation 2012
Server URL (image server):
Layer List
Coastal 2012
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Northwest Connecticut DEM 2011
Northwest Connecticut Elevation 2011
Server URL (image server):
Layer List
Northwest 2011
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Northeast Connecticut DEM 2010
Eastern Connecticut Elevation 2010
Server URL (image server):
Layer List
East 2010
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Southwest Connecticut Elevation 2011
Southwest Connecticut Elevation 2011
Server URL (image service):
Layer List
Southwest 2011
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Southeast Connecticut Elevation 2011
Southeast Connecticut Elevation 2011
Server URL (image service):
Layer List
Southeast 2011
More Information
Raster functions
available to apply hillshade, shaded relief, slope and aspect to the DEM.
Contours (2000)
Contours (2000)
Server URL (map service):
Layer List
Contours (2000)
Data Guide
100 ft Contours
Metadata
50 ft Contours
Metadata
20 ft Contours
Metadata
10 ft Contours
Metadata
5 ft Contours
Metadata
2 ft Contours
Metadata
Topobathy Lidar: Long Island Sound
Topobathy Lidar 2023: Long Island Sound
Server URL (image service):
Layer List
LIS_topobathy2023
Metadata
Data Report
NOAA National Geodetic Survey, U.S. Department of Agriculture Natural Resources Conservation Service
NOAA NGS Bulk Download
Topobathymetric lidar
simultaneously collects point data on three distinct surfaces – land, water, and submerged land using airborne laser-based sensors. Here, the bare ground is shown along the coastline of Long Island Sound in Connecticut and New York.
Lake Bathymetry
Lake Bathymetry
DEEP Server URLs (feature service):
Old Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Lake Bathymetry
Data Guide
Lake Bathymetry Contours
(2000)
Metadata
Lake Bathymetry Poly
Metadata
Services
Base Maps
Base Map (Connecticut)
Base Map (Connecticut)
This service is retired. Please add individual layers to create a base map.
Server URL (map service): https://cteco.uconn.edu/ctmaps/rest/services/Base_Map/CT_Base_Map/MapServer
Layer List
Geographic Names
Metadata
Geographic Place Name
Metadata
Airport
Metadata
Railroad
Metadata
Routes and Streets
Data Guide
Metadata
County
Metadata
Town
Metadata
State Line
Waterbodies
Metadata
Hydrography
Base Map (Bordering States)
Base Map (Bordering States)
DEEP Server URL (feature service):
RETIRED
. Old Server URL (map service): https://cteco.uconn.edu/ctmaps/rest/services/Base_Map/CT_Bordering_States/MapServer
Layer List
CT DEEP Open GIS Summary
Town (MA, NY, RI)
Metadata
Connecticut Vicinity State Lines (MA, NY, RI)
Bioscience
Critical Habitat
Critical Habitat
DEEP Server URL (feature service):
RETIRED.
Old Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Critical Habitats
Data Guide
Resource Guide
Metadata
National Wetlands Inventory (NWI) Wetlands Functions 2010
National Wetlands Inventory (NWI) Wetlands Functions
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service): https://cteco.uconn.edu/ctmaps/rest/services/Bioscience/CT_NWI_Wetland_Functions_2010/MapServer
DEEP Layer List
Connecticut NWI Wetlands 2024
US Fish and Wildlife Wetland Services
US Fish and Wildlife Wetland Data Download
The US Fish and Wildlife Service also provides both a
raster service
and
vector service
that cover the continental US.
Old CT ECO Layer List
Freshwater Forest and Shrub Wetlands
Freshwater Emergent Wetland
Other Freshwater Wetland
Estuarine and Marine Wetlands
Estuarine and Marine Deep Water
Freshwater Ponds
Lakes
Riverine
CT NWI Explained
Natural Diversity Database
Natural Diversity Database
DEEP Server URL (feature service):
RETIRED.
Old (as of June 2021) Server URL: https://cteco.uconn.edu/ctmaps/rest/services/Bioscience/Natural_Diversity_Database_Areas/MapServer
Layer List
CT DEEP Open GIS Data Summary
Natural Diversity Database
Data Guide
Resource Guide
Metadata
Tidal Wetlands 1970s
Tidal Wetlands 1970s
DEEP Server URL (feature service):
RETIRED.
Old Server URL: https://cteco.uconn.edu/ctmaps/rest/services/Bioscience/Tidal_Wetlands_1970s/MapServer
Layer List
CT DEEP Open GIS Data Summary
Tidal Wetlands 1970s
Metadata
Tidal Wetlands 1990s
Tidal Wetlands 1990s
DEEP Server URL (feature service):
RETIRED.
Old Server URL: https://cteco.uconn.edu/ctmaps/rest/services/Bioscience/Tidal_Wetlands_1990s/MapServer
Layer List
CT DEEP Open GIS Data Summary
Tidal Wetlands 1990s
Metadata
Built Environment
2012 Impervious Cover
Impervious Surface 2012
Server URL (map service):
Layer List
Impervious Surface 2012
Metadata
2012 Impervious Surface CT State Plane
Impervious Surface 2012 CT State Plane
Server URL (map service):
Layer List
Impervious Surface 2012 State Plane
Metadata
2012 Impervious Surface Simplified Vector CT State Plane
Impervious Surface 2012 Simplified Vector CT State Plane
Server URL (map service):
Layer List
Impervious 2012 Simplified Vector (State Plane)
Metadata
Includes road surface, buildings and other impervious.
MS4 Layers
2012 Impervious Cover by Basin and Town
2012 Impervious Cover by Town and Basin
Server URL (map service):
Layer List
Impervious Cover by Basin
Data Guide
Impervious Cover by Town
The attribute table
includes total impervious area and percentages as well as area and percentage each for each class of buildings, roads and other impervious.
More about
MS4
MS4 2016 Impaired Waters
2016 MS4 Impaired Waters
Server URL (map service):
Layer List
CT 2016 MS4 Impaired Rivers
Data Guide
Metadata
Layer Link
CT 2016 MS4 Impaired Lakes
Data Guide
Metadata
Layer Link
CT 2016 MS4 Impaired Estuaries
Data Guide
Metadata
Layer Link
Contains rivers, lakes and streams included in the Connecticut Integrated Water Quality report as being impaired for stormwater runoff related causes.
More about
MS4
MS4 2018 Impaired Waters
2018 MS4 Impaired Waters
Server URL:
Layer List
CT 2018 MS4 Impaired Rivers
Data Guide
Metadata
Layer Link
CT 2018 MS4 Impaired Lakes
Data Guide
Metadata
Layer Link
CT 2018 MS4 Impaired Estuaries
Data Guide
Metadata
Layer Link
Contains rivers, lakes and streams included in the Connecticut Integrated Water Quality report as being impaired for stormwater runoff related causes.
More about
MS4
MS4 2020 Impaired Waters
2020 MS4 Impaired Waters
Server URL (map service):
Layer List
CT 2020 MS4 Impaired Rivers
Data Guide
Metadata
Layer Link
CT 2020 MS4 Impaired Lakes
Data Guide
Metadata
Layer Link
CT 2020 MS4 Impaired Estuaries
Data Guide
Metadata
Layer Link
Contains rivers, lakes and streams included in the Connecticut Integrated Water Quality report as being impaired for stormwater runoff related causes.
More about
MS4
Urbanized Area
Urbanized Area
Server URL (map service):
Layer List
Urbanized Area
Councils of Governments
Councils of Governments
Server URL (map service):
Layer List
Councils of Government
MS4 Towns
MS4 Towns
Server URL (map service):
Layer List
MS4 Towns
More about
MS4
Coastal
Coastal Management Area
Coastal Management
DEEP Server URL (feature service):
RETIRED.
Old Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Coastal Boundary
Metadata
Coastal Area
Metadata
Eelgrass Beds 2002-2012
Eelgrass Beds 2002-2012
DEEP Server URLs (feature service)
2002:
2006:
2009:
2012:
RETIRED.
Old Server URL (map service):
Layer List
Eelgrass Beds 2002
CT DEEP Open GIS Data Summary
Field Data Metadata
Polygon Metadata
Eelgrass Beds 2006
CT DEEP Open GIS Data Summary
Field Data Metadata
Polygon Metadata
Eelgrass Beds 2009
CT DEEP Open GIS Data Summary
Field Data Metadata
Polygon Metadata
Eelgrass Beds 2012
CT DEEP Open GIS Data Summary
Polygon Metadata
CT Hurricane Evacuation Zones 2014
CT Hurricane Evacuation Zones 2014
DEEP Server URL (feature service):
RETIRED.
Old Server URL (map service):
Layer List
Hurricane Evacuation Zones 2014
Metadata
Hurricane Surge Inundation 2012
Hurricane Surge Inundation 2012
CT DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Hurricane Surge Inundation
Data Guide
Resource Guide
Metadata
Long Island Sound Environmental Observation
Long Island Sound Environmental Observation
DEEP Server URL (feature service):
RETIRED.
Old Server URL (map service):
Layer List
Long Island Sound Observation Locations
More Info
Sea Level Rise
Sea Level Rise
Average Monthly Maximum Inundation Server URL (map service):
Mean High Water Server URL (map service):
Layer List
Average Monthly Maximum Inundation
Average Monthly Maximum Inundation
Average Monthly Maximum Inundation (+ 6 in)
Average Monthly Maximum Inundation (+ 12 in)
Average Monthly Maximum Inundation (+ 18 in)
Average Monthly Maximum Inundation (+ 24 in)
Average Monthly Maximum Inundation (+ 36 in)
Average Monthly Maximum Inundation (+ 60 in)
Average Monthly Maximum Inundation (+ 79 in)
Mean High Water Scenarios
Mean High Water Inundation
Mean High Water Inundation (+ 6 in)
Mean High Water Inundation (+ 12 in)
Mean High Water Inundation (+ 18 in)
Mean High Water Inundation (+ 24 in)
Mean High Water Inundation (+ 36 in)
Mean High Water Inundation (+ 60 in)
Mean High Water Inundation (+ 79 in)
Sea Level Rise Visualization Layer Info
Shoreline Change
Shoreline Change
Short Term Shoreline Change DEEP Server URL (feature service)
Long Term Shoreline Change DEEP Server URL (feature service)
Shoreline Change Supplemental Data Server URL (feature service)
RETIRED.
Short Term Shoreline Change Server URL (map service):
RETIRED.
Long Term Shoreline Change Server URL (map service):
Layer List
Short Term Shoreline Change
Positive Net Shoreline Movement (meters)
Negative Net Shoreline Movement (meters)
Positive End Point Rates (meters/year)
Negative End Point Rates (meters/year)
Shoreline Change Transects 1983-2006
CT Shorelines: 1983-2006
Long Term Shoreline Change
Positive Net Shoreline Movement (meters)
Negative Net Shoreline Movement (meters)
Positive End Point Rates (meters/year)
Negative End Point Rates (meters/year)
Positive Linear Regression Rates (meters/year)
Negative Linear Regression Rates (meters/year)
Shoreline Change Transects 1880-2006
CT Shorelines: 1880s-2006
Shoreline Change Supplemental Data
Reduced Transect Counts for Regional Averaging
Offshore Baselines
Shoreline Change Layer Info
Old Layer List
Short Term Change
Shoreline Change Transects 1983-2006
Net Shoreline Movement (NSM) 1983-2006
Positive Net Shoreline Movement (meters)
Negative Net Shoreline Movement (meters)
End Point Rates (EPR) 1983-2006
Postive End Point Rates (meters/year)
Negative End Point Rates (meters/year)
CT Shorelines: 1983-2006
Long Term Change
Shoreline Change Transects 1880-2006
Net Shoreline Movement (NSM) 1880-2006
Positive Net Shoreline Movement (meters)
Negative Net Shoreline Movement (meters)
End Point Rates (EPR) 1880-2006
Positive End Point Rates (meters/year)
Negative End Point Rates (meters/year)
Linear Regression Rates (LRR) 1880-2006
Positive Linear Regression Rates (meters/year)
Negative Linear Regression Rates (meters/year)
CT Shorelines: 1880s-2006
Storm Sandy
Storm Sandy
Damage Assessments Server URL (map service):
Impact Analysis Server URL (map service):
Surge Data Server URL (map service):
Water Level URL (map service):
Wind Data URL (map service):
Layer List
Storm Sandy Layer Info
Damage Assessments
v16_2012_11_06_1600EST
v17_2012_11_07_1320EST
v18_2012_11_08_1940EST
v19_2012_11_09_1715EST
v20_2012_11_10_1800EST
v21_2012_11_12_1600EST
v22_2012_11_13_1340EST
v23_2012_11_14_1250EST
v26_2012_11_19_2000EST
v27_2012_11_21_2000EST
Impact Analysis
Hurricane Sandy Impacts Analysis - 11-26-12
Hurricane Sandy Impact Analysis - 11-06-12
Surge Data
Hi-Res Surge
Water Surface Elevations
Water Level
Peak Locations
USGS High Water Marks
Storm Sensor Network
Wind Data
AL182012- H* Wind Analysis-MaxSpeed
AL182012- H* Wind Analysis-MaxDirection
AL182012_1028_0130
AL182012_1029_0130
AL182012_1029_0430
AL182012_1029_0730
AL182012_1029_1030
AL182012_1029_1330
AL182012_1029_1502
AL182012_1029_1630
AL182012_1029_1930
AL182012_1029_2230
AL182012_1030_0130
AL182012_1030_0430
AL182012_1030_0730
Geology
Bedrock
Bedrock Geology
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Bedrock Geology Contacts
Metadata
Bedrock Geology
Metadata
Bedrock Terrane
Bedrock Terrane
DEEP Server URL (feature service):
RETIRED.
Old Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Bedrock Terrane Contacts
Metadata
Bedrock Terrane
Metadata
Erosion Susceptibility
Erosion Susceptibility
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Erosion Susceptibility Sites
Metadata
Erosion Susceptibility
Data Guide |
Metadata
Quaternary Geology
Quaternary Geology
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Quaternary Geology
Data Guide
Resource Guide
Quaternary Geology Point Features
Metadata
Quaternary Geology Line Features
Metadata
Quaternary Geology Overlays
Quaternary Geology Deposits
Long Island Sound Quaternary Geology
Quaternary Geology LIS End Moraine
Metadata
Quaternary Geology LIS Lake Deposits
Metadata
Quaternary Geology LIS Lacustrine Fan Deposits
Metadata
Quaternary Geology LIS Deltaic Deposits
Metadata
Quaternary Geology LIS Channel-Fill Deposits
Metadata
Surficial Aquifer Potential
Surficial Aquifer Potential
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Surficial Aquifer Potential
Metadata
Surficial Aquifer Texture
Surficial Aquifer Texture
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Surficial Aquifer Texture
Metadata
Surficial Materials
Surficial Materials
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Surficial Materials
Data Guide
Resource Guide
Metadata
Hydrography
Hydrography
Hydrography
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Hydrography
Line Metadata
Polygon Metadata
Named Waterbody
Named Waterbody
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Named Waterbody
Line Metadata
Polygon Metadata
Waterbody
Waterbody
This service is retired. Please use other water layers.
Server URL (map service):
Layer List
Waterbody
Line Metadata
Polygon Metadata
Land Cover
Changing Landscape w/National Land Cover Database Land Cover (NLCD)
Land Cover and Change
Land Cover and Change
Server URL folder:
More about
Changing Landscape with NLCD
Layer List
LAND COVER (
30m pixels)
Each service contains multiple layers. The last layer in the list is the full land cover. Other layers contain a subset of classes that are redundant with the full land cover layer. When in doubt, use the full land cover layer.
Regional 1985 Land Cover
(LandCover_1985_ANLCD)
Riparian Developed 1985 (Annual NLCD)
Riparian Developed Open Space 1985 (Annual NLCD)
Riparian Forest 1985 (Annual NLCD)
Riparian Ag 1985 (Annual NLCD)
Riparian Land Cover 1985 (Annual NLCD)
Developed 1985 (Annual NLCD)
Developed Open Space 1985 (Annual NLCD)
Forest 1985 (Annual NLCD)
Ag 1985 (Annual NLCD)
Land Cover 1985 (Annual NLCD)
Regional 1995 Land Cover
(LandCover_1995_ANLCD)
Developed 1995 (Annual NLCD)
Developed Open Space 1995 (Annual NLCD)
Forest 1995 (Annual NLCD)
Ag 1995 (Annual NLCD)
Land Cover 1995 (Annual NLCD)
Regional 2000 Land Cover
(LandCover_2000_ANLCD)
Developed 2000 (Annual NLCD)
Developed Open Space 2000 (Annual NLCD)
Forest 2000 (Annual NLCD)
Ag 2000 (Annual NLCD)
Land Cover 2000 (Annual NLCD)
Regional 2005 Land Cover
(LandCover_2005_ANLCD)
Developed 2005 (Annual NLCD)
Developed Open Space 2005 (Annual NLCD)
Forest 2005 (Annual NLCD)
Ag 2005 (Annual NLCD)
Land Cover 2005 (Annual NLCD)
Regional 2010 Land Cover
(LandCover_2010_ANLCD)
Developed 2010 (Annual NLCD)
Developed Open Space 2010 (Annual NLCD)
Forest 2010 (Annual NLCD)
Ag 2010 (Annual NLCD)
Land Cover 2010 (Annual NLCD)
Regional 2015 Land Cover
(LandCover_2015_ANLCD)
Developed 2015 (Annual NLCD)
Developed Open Space 2015 (Annual NLCD)
Forest 2015 (Annual NLCD)
Ag 2015 (Annual NLCD)
Land Cover 2015 (Annual NLCD)
Regional 2020 Land Cover
(LandCover_2020_ANLCD)
Developed 2020 (Annual NLCD)
Developed Open Space 2020 (Annual NLCD)
Forest 2020 (Annual NLCD
Ag 2020 (Annual NLCD)
Land Cover 2020 (Annual NLCD)
Regional 2023 Land Cover
(LandCover_2023_ANLCD)
Riparian Developed 2023 (Annual NLCD)
Riparian Developed Open Space 2023 (Annual NLCD)
Riparian Forest 2023 (Annual NLCD)
Riparian Ag 2023 (Annual NLCD)
Riparian Land Cover 2023 (Annual NLCD)
Developed 2023 (Annual NLCD)
Developed Open Space 2023 (Annual NLCD)
Forest 2023 (Annual NLCD)
Ag 2023 (Annual NLCD)
Land Cover 2023 (Annual NLCD)
CHANGING LANDSCAPE LAND COVER CHANGE
These services contain multiple layers. The
change
layers include both change and no change classes. The
change classes only
include only change classes.
Regional Land Cover Change To 1985-2023
(LandCoverChangeTo_1985_2023_ANLCD)
1985-2023 Riparian Change To (change classes only)
1985-2023 Riparian Change To
1985-2023 Change To (change classes only)
1985-2023 Change To
Regional Land Cover Change From 1985-2023
(LandCoverChangeFrom_1985_2023_ANLCD)
1985-2023 Riparian Change From (change classes only)
1985-2023 Riparian Change From
1985-2023 Change From (change classes only)
1985-2023 Change From
CHANGING LANDSCAPE LANDCOVER SUMMARIZED BY BASIN and TOWN
This is a HUC12 watershed layer is watershed polygons with lots of land cover attributes for area and percent of land cover classes, change, and matching attributes for riparian area land cover. In the attributes, "a" stands for area in "acres," "p" stands for percent. If "buff" is next, it is a riparian area class. Buff is shorter for buffer of waterbodies and streams. Next is the class name which is straightforward and IS is impervious.  Following in the year such as 1985, 1990, etc and change classes include "diff" for difference and then two years being compared, with the most recent first. For example, 0085 is change between 1985 and 2000.
Regional Land Cover Watershed Statistics
(ByBasin)
HUC-12 basins
LIS watershed mask
This is a town layer of all the municipalities that are partially or fully within the Long Island Sound watershed. The towns have lots of land cover attributes for area and percent of land cover classes, change, and matching attributes for riparian area land cover. In the attributes, "a" stands for area in "acres," "p" stands for percent. If "buff" is next, it is a riparian area class. Buff is shorter for buffer of waterbodies and streams. Next is the class name which is straightforward and IS is impervious.  Following in the year such as 1985, 1990, etc and change classes include "diff" for difference and then two years being compared, with the most recent first. For example, 0085 is change between 1985 and 2000.
Regional Land Cover Town Statistics
(ByTown)
Towns
Impervious Surface
Impervious Surface
Server URL:
1985 Impervious Surface:
2023 Impervious Surface:
The impervious surface layer is created by USGS as part of the Annual National Land Cover Database (NLCD). The NLCD impervious surface output represents fractional surface area of a pixel that is considered impervious and provides a value from 0-100 for every pixel mapped as one of the 4 developed categories (see next section). The value is equal to the percent of impervious in that pixel. The percent impervious per basin is calculated by finding the average percent impervious value within a basin and then multiplying the percent by the basin area. So, impervious surface is its own separate layer, derived from land cover but not one of the NLCD land cover classes. For more information, visit the
CT ECO Changing Landscape with NLCD page
or the
USGS Annual NLCD Fractional Impervious Surface page
High Resolution Land Cover
CT 2016 High Resolution Land Cover from the NOAA Coastal Change Analysis Program (C-CAP)
CT 2016 High Resolution Land Cover from the NOAA Coastal Change Analysis Program (C-CAP)
Server URL (map service):
More about the
2016 High Resolution Land Cover on CT ECO
Layer List
CCAP Landcover 2016 1m (ct_2016_ccap_hires_landcover_20200915.tif)
CT 2021 High Resolution Forest Canopy, Water, Impervious from the NOAA Coastal Change Analysis Program (C-CAP)
CT 2021 High Resolution Forest Canopy, Water, Impervious from the NOAA Coastal Change Analysis Program (C-CAP)
Server URLs (map service):
Forest Canopy
Impervious
Water
Learn more about
NOAA's C-CAP High-Resolution Land Cover layers
Original Changing Landscape Land Cover
CT Land Cover and Change
CT Land Cover and Change
Server URL (map service):
More about
CT Land Cover
Layer List
CHANGING LANDSCAPE 30m LAND COVER
Each service contains multiple layers. The last layer is the full land cover. Other layers contain a subset of classes that are redundant with the full land cover layer. When in doubt, use the full land cover layer.
CT 1985 Land Cover
(CTlandcover1985)
Metadata
CT 2015 Land Cover
(CTlandcover2015)
Metadata
CHANGING LANDSCAPE LAND COVER CHANGE
These services contain two layers. One includes both change and no change classes (called
All Classes
) and one includes only change classes (called
Change classes only
).
CT Land Cover Change To 1985-2015
(CTchangeTo1985_2015)
CT Land Cover Change From 1985-2015
(CTchangeFrom1985_2015)
CHANGING LANDSCAPE LANDCOVER SUMMARIZED BY TOWN
This is a Connecticut town layer with an attribute for area and percent of each land cover class including change. The layers in the service (Forest, Forest Change, Ag. Field, Ag. Field Change, Developed, Developed Change, Turf and Grass, Turf and Grass Change) have been symbolized using the appropriate attribute. The
Town Stats
layer is an outline and includes all attributes. In the attributes, "a" stands for "acres," "p" stands for percent, the year is either 1985, 2015, or 1985-2015 change "8515." Class numbers are listed on the
classes
page. For example, the attribute
a1985_1
is acres in 1985 of class 1, developed.
CT Land Cover Town Statistics
(ByTown)
CT Forest Fragmentation
CT Forest Fragmentation
Server URL (map service):
More about
Forest Fragmentation
Layer List
The forest fragmentation services contain two layers. The Forest Fragmentation layer includes all classes while the Core Forest layer is just the Core Forest classes.
CT 1985 Forest Fragmentation
(CTforestfrag1985)
CT 2015 Forest Fragmentation
(CTforestfrag2015)
Long Island Sound Watershed Land Cover and Change
Long Island Sound Watershed (LIS) Land Cover and Change
Server URL (map service):
More about
Long Island Sound Watershed Land Cover
Layer List
CHANGING LANDSCAPE 30m LAND COVER
Each service contains multiple layers. The last layer is the full land cover. Other layers contain a subset of classes that are redundant with the full land cover layer. When in doubt, use the full land cover layer.
LIS 1985 Land Cover
(LISlandcover1985)
LIS 1990 Land Cover
(LISlandcover1990)
LIS 1995 Land Cover
(LISlandcover1995)
LIS 2002 Land Cover
(LISlandcover2002)
LIS 2006 Land Cover
(LISlandcover2006)
LIS 2010 Land Cover
(LISlandcover2010)
LIS 2015 Land Cover
(LISlandcover2015)
CHANGING LANDSCAPE LAND COVER CHANGE
These services contain two layers. One includes change and no change classes (called
All Classes
) and one includes only change classes (called
Change classes only
).
LIS Land Cover Change To 1985-2015
(LISchangeTo1985_2015)
LIS Land Cover Change From 1985-2015
(LISchangeFrom1985_2015)
CHANGING LANDSCAPE LAND COVER SUMMARIZED BY HUC12 BASIN
This is a HUC12 watershed layer with an attribute for area and percent of each land cover class including change. The layers in the service (Forest, Forest Change, Ag. Field, Ag. Field Change, Developed, Developed Change, Turf and Grass, Turf and Grass Change) have been symbolized using the appropriate attribute. The
Basin Stats
layer is an outline and includes all attributes. In the attributes, "a" stands for "acres," "p" stands for percent, the year is either 1985, 2015, or 1985-2015 change "8515." Class numbers are listed on the
classes
page. For example, the attribute
a1985_1
is acres in 1985 of class 1, developed.
The service also contains Percent Impervious layers where a land-cover based impervious estimate is included.
LIS Land Cover Basin Statistics
(ByBasin)
Long Island Sound Watershed Riparian Area Land Cover and Change
Long Island Sound Watershed (LIS) Riparian Area Land Cover and Change
Server URL (map service):
More about
Riparian Land Cover
Layer List
LIS 1985 Riparian Area Land Cover
(LIS_riparian_landcover1985)
LIS 2015 Riparian Area Land Cover
(LIS_riparian_landcover2015)
LIS Riparian Area Land Cover Change 1985-2015
(LIS_riparian_change1985_2015)
LIS Riparian Area Boundary
(LIS_riparian)
Open Space
1997 Municipal and Private Open Space
1997 Municipal and Private Open Space
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
1997 Municipal and Private Open Space
Data Guide
Resource Guide
Metadata
DEEP Property
DEEP Property
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
DEEP Property
Data Guide
Resource Guide
Metadata
DOT Scenic Land Strips
DOT Scenic Land Strips
Server URL (map service):
Layer List
DOT Scenic Land Strips
Data Guide
Federal Open Space 1997
Federal Open Space 1997
Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
Federal Open Space 1997
Data Guide
Resource Guide
Metadata
Protected Open Space Mapping
Protected Open Space Mapping
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Protected Open Space Mapping
Data Guide
Resource Guide
Metadata
Parcels for Protected Open Space Mapping
Parcels for Protected Open Space Mapping
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
Protected Open Space Mapping
Data Guide
Resource Guide
Metadata
Parcels
CT Parcels (2023)
CT Parcels (2023 data collect)
This service is an aggregation of municipal parcels (both their geometry and attributes) collected by the CT GIS Office of the Office of Policy and Management in 2023. After collection, extensive GIS work standardized the municipal datasets into a single layer.
Server URL for feature service:
Layer List
CT Parcels
More info on CT ECO
More info on the CT Geodata Portal
CT Parcels (2020)
CT Parcels (2020 data collect)
This service is an aggregation of municipal parcels collected by the CT GIS Office of the Office of Policy and Management in 2020.
Server URL for cached service:
Server URL for map service:
Server URL for feature service:
Layer List
CT Parcels
Parcel Report (xls)
More info
An updated statewide parcel layer can be found on the
CT Geodata Portal
Parcels for Protected Open Space Mapping (2003-2010)
Parcels for Protected Open Space Mapping (2003-2010)
Server URL (feature service):
Old CT ECO Server URL (map service):
Layer List
Protected Open Space Mapping
Data Guide
Resource Guide
Metadata
More information about CT Parcel datasets
Political Boundaries
Administrative Boundary Index
Administrative Boundary Index
DEEP Server URLs (feature service):
Regional Councils of Government Index:
CT US Congress Districts:
CT Senate Districts:
CT House Districts:
CT Index:
CT DOT Server URLs (feature service):
CT Towns:
RETIRED.
Old Server URL (map service):
Layer List
USGS Topographic Quadrangle Index Metadata
Metadata
Regional Councils of Government Index
CT DEEP Open GIS Data Summary
Metadata
CT US Congress Districts
CT DEEP Open GIS Data Summary
Metadata
CT Senate Districts
CT DEEP Open GIS Data Summary
CT House Districts
CT DEEP Open GIS Data Summary
Metadata
CT County Index
CT DOT Open GIS Data Summary
Metadata
CT Town
CT DOT Open GIS Data Summary
Metadata
Connecticut Towns
Connecticut Towns
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Town Line
Metadata
Town Polygon
Metadata
Northeast US Boundaries
Northeast US Boundaries
DEEP Server URLs (feature service)
Northeast States:
Northeast Counties:
Northeast Towns:
RETIRED.
Old Server URL (map service):
Layer List
Northeast States
CT DEEP Open GIS Data Summary
Northeast State Line
Metadata
Northeast State Polygon
Metadata
Northeast Counties
CT DEEP Open GIS Data Summary
Northeast Towns
CT DEEP Open GIS Data Summary
Northeast State Boundaries
Northeast US Boundary Index (also called Northeastern State Boundaries)
DEEP Server URL (feature service):
RETIRED.
Old Server URL:
Layer List
Northeast State Line
Metadata
Northeast State Polygon
Metadata
Soils
All Soils
All Soils
CT DEEP Server URL (feature service):
RETIRED.
OLD CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
All Soils
More Info
Metadata
Farmland Soils
Farmland Soils
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Farmland Soils
More Info
Metadata
Hydric Soils
Hydric Soils Rating
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Hydric Soils
More Info
Metadata
Inland Wetland Soils
Inland Wetland Soils
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Inland Wetland Soils
More Info
Metadata
Potential for Subsurface Disposal Systems
Potential for Subsurface Disposal Systems
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service): https://cteco.uconn.edu/ctmaps/rest/services/Soils/Potential_for_Subsurface_Disposal_Systems/MapServer
Layer List
CT DEEP Open GIS Data Summary
Potential for Subsurface Disposal Systems
More Info
Metadata
Soils Drainage Class
Soils Drainage Class
DEEP Server URL (feature service):
updated on CT ECO December 2023
Layer List
Drainage Class
More Info
Metadata
Soil Flooding Class
Soil Flooding Class
Please use FEMA National Flood Hazard Layers (NFHL) for flooding related layers
Learn more about the layers on the
FEMA NFHL
website.
RETIRED.
Old CT ECO Server URL (map service):
Soil Parent Material
Soil Parent Material
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Soil Parent Material
More Info
Metadata
Watershed
Basins
Basins
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Basins
Data Guide
Line Metadata
Polygon Metadata
Direction Metadata
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Local Basins
Local Basins
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Local Basins
Data Guide
Line Metadata
Polygon Metadata
Direction Metadata
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Subregional Basins
Subregional Basins
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service): https://cteco.uconn.edu/ctmaps/rest/services/Watersheds/Subregional_Basins/MapServer
Layer List
CT DEEP Open GIS Data Summary
Subregional Basins
Data Guide
Line Metadata
Polygon Metadata
Direction Metadata
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Regional Basins
Regional Basins
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
Layer List
CT DEEP Open GIS Data Summary
Regional Basins
Data Guide
Line Metadata
Polygon Metadata
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Major Basins
Major Basins
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
uconn.edu/ctmaps/rest/services/Watersheds/Major_Basins/MapServer
Layer List
CT DEEP Open GIS Data Summary
Major Basins
Data Guide
Line Metadata
Polygon Metadata
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Watershed Boundary Dataset Hydrologic Units (HUC)
Watershed Boundary Dataset Hydrologic Units (HUC)
DEEP Server URL:
RETIRED.
OLD CT ECO Server URLS
Server URL HUC12 (map service):
Server URL HUC10 (map service):
Server URL HUC8 (map service):
Layer List
Watershed Boundary Dataset Hydrologic Units
Line Metadata
Polygon Metadata
HUC Watershed Line
HUC Watershed Poly
Attributes include HUC 8, HUC 10, and HUC 12 designations.
HUC12
HUC10
HUC8
Visit
Watersheds Explained
for more information about these watersheds and others on CT ECO.
Water Resources
Aquifer Protection Areas
Aquifer Protection Areas
DEEP Server URL (feature service):
RETIRED.
Old CT ECO Server URL (map service):
As of June 2021, the Aquifer Protection Area map service on CT ECO
will not be updated
. Use the Feature Server URL from DEEP for the most updated data.
Layer List
CT DEEP Open GIS Data Summary
Aquifer Protection Area
Data Guide
Resource Guide
Metadata
Assessed and Impaired Waterbodies 2022
Assessed and Impaired Waterbodies 2022
Server URL Impaired Waterbodies:
Server URL Assessed Waterbodies:
Layer List
CT 303(d) Impaired Waterbodies 2022
Impaired River 2022
Impaired Lake 2022
Impaired Estuary 2022
CT 305(b) Assessed Waterbodies 2022
Assessed River 2022
Assessed Lake 2022
Assessed Estuary 2022
Assessed and Impaired Waterbodies 2020
Assessed and Impaired Waterbodies 2020
DEEP Server URLs (feature service):
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2020
CT DEEP Open GIS Data Summary
Impaired River 2020
Impaired Lake 2020
Impaired Estuary 2020
CT 305(b) Assessed Waterbodies 2020
CT DEEP Open GIS Data Summary
Assessed River 2020
Metadata
Assessed Lake 2020
Metadata
Assessed Estuary 2020
Metadata
Assessed and Impaired Waterbodies 2018
Assessed and Impaired Waterbodies 2018
DEEP Server URLs (feature service)
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2018
CT DEEP Open GIS Data Summary
Impaired River 2018
Impaired Lake 2018
Impaired Estuary 2018
CT 305(b) Assessed Waterbodies 2018
CT DEEP Open GIS Data Summary
Assessed River 2018
Metadata
Assessed Lake 2018
Metadata
Assessed Estuary 2018
Metadata
Assessed and Impaired Waterbodies 2016
Assessed and Impaired Waterbodies 2016
DEEP Server URLs (feature service)
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2016
CT DEEP Open GIS Data Summary
Impaired River 2016
Impaired Lake 2016
Impaired Estuary 2016
CT 305(b) Assessed Waterbodies 2016
CT DEEP Open GIS Data Summary
Assessed River 2016
Metadata
Assessed Lake 2016
Metadata
Assessed Estuary 2016
Metadata
Assessed and Impaired Waterbodies 2014
Assessed and Impaired Waterbodies 2014
DEEP Server URLs (feature service)
Impaired:
Assessed:
Old Server URL:
Layer List
CT 303(d) Impaired Waterbodies 2014
CT DEEP Open GIS Data Summary
Impaired River 2014
Impaired Lake 2014
Impaired Estuary 2014
CT 305(b) Assessed Waterbodies 2014
CT DEEP Open GIS Data Summary
Assessed River 2014
Metadata
Assessed Lake 2014
Metadata
Assessed Estuary 2014
Metadata
Assessed and Impaired Waterbodies 2012
Assessed and Impaired Waterbodies 2012
DEEP Server URLs (feature service)
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2012
CT DEEP Open GIS Data Summary
Impaired River 2012
Impaired Lake 2012
Impaired Estuary 2012
CT 305(b) Assessed Waterbodies 2012
CT DEEP Open GIS Data Summary
Assessed River 2012
Metadata
Assessed Lake 2012
Metadata
Assessed Estuary 2012
Metadata
Assessed and Impaired Waterbodies 2010
Assessed and Impaired Waterbodies 2010
DEEP Server URLs (feature service)
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2010
CT DEEP Open GIS Data Summary
Impaired River 2010
Impaired Lake 2010
Impaired Estuary 2010
CT 305(b) Assessed Waterbodies 2010
CT DEEP Open GIS Data Summary
Assessed River 2010
Metadata
Assessed Lake 2010
Metadata
Assessed Estuary 2010
Metadata
Data Guide
Assessed and Impaired Waterbodies 2008
Assessed and Impaired Waterbodies 2008
DEEP Server URL (feature service):
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2008
CT DEEP Open GIS Data Summary
Impaired River 2008
Impaired Lake 2008
Impaired Estuary 2008
CT 305(b) Assessed Waterbodies 2008
CT DEEP Open GIS Data Summary
Assessed River 2008
Metadata
Assessed Lake 2008
Metadata
Assessed Estuary 2008
Metadata
Data Guide
Assessed and Impaired Waterbodies 2006
Assessed and Impaired Waterbodies 2006
DEEP Server URLs (feature service):
Impaired:
Assessed:
Old Server URL (map service):
Layer List
CT 303(d) Impaired Waterbodies 2006
CT DEEP Open GIS Data Summary
Impaired River 2006
Impaired Lake 2006
Impaired Estuary 2006
Data Guide
CT 305(b) Assessed Waterbodies 2006
CT DEEP Open GIS Data Summary
Assessed River 2006
Metadata
Assessed Lake 2006
Metadata
Assessed Estuary 2006
Metadata
Data Guide
Water Quality Classifications
Water Quality Classifications
DEEP Server URLs (feature service)
Surface Water Quality:
Ground Water Quality:
Old Server URL (map service):
Layer List
Surface Water Quality
CT DEEP Open GIS Data Summary
Data Guide
Resource Guide
Surface Water Quality Line
Metadata
Surface Water Quality
Metadata
Ground Water Quality
CT DEEP Open GIS Data Summary
Ground Water Quality Well
Ground Water Quality
Metadata
The two servers on CT ECO are
CTRASTER for imagery
CTMAPS for map services
Also, find most services on
CT ECO ArcGIS Online