AndreaBozzo/ceres-open-data-index huggingface dataset:
CT Public Above Ground Resources

These points are directly sourced from the National Historic Landmarks, National Register, State Register, Local Historic Districts, Local Historic Places, Historic Resources inventories, CHC files, Connecticut Barns listings, Connecticut Arts & letters listings, Connecticut Making Places listings, Connecticut Freedom Trail listings, and various special surveys (Sculpture, Civil War Monuments, Municipal Parks, Town Greens, Historic Bridges). If a resource appears in multiple pdfs, it will appear as one entry. The geolocation of these points is based on the addresses and pre-existing maps that appear in the associated pdfs of the resources. Some resources were unable to be geolocated; but will still appear in the attribute table of this layer. The following is a list of the sources for each resource with their associated designation: 1). National Historic Landmark (NHL); with the designation “NHL”. 2). National Register (NR); with the designation “NRIND” for individual resources or NRDIS for NR Districts. A “-C” or a “-NC” is added at the end of NRIND or NRDIS to indicate if it is a contributing or non-contributing resource. 3). Restricted National Register (RNR); with the designation “NRIND” for individual resources or NRDIS for NR Districts. A “-C” or a “-NC” is added at the end of NRIND or NRDIS to indicate if it is a contributing or non-contributing resource. These resources are not geolocated and their pdfs are no available to be viewed on the public viewer. 4). State Register (SR); with the designation “SRIND” for individual resources or SRDIS for SR Districts. A “-C” or a “-NC” is added at the end of SRIND or SRDIS to indicate if it is a contributing or non-contributing resource. Every resource listed in the NHL or NR have a "SRIND" or "SRDIS" designation as they are automatically placed on the state register if they are added to the NHL or NR. In instances where that is the case, there will be no accompanying SR associated with it. Similarly, everything with a CHC listing, also has a SRIND designation. Some SR resources are referred to as 'LHD' within the documentation, this is because every proposed LHD pre-2019 that failed to pass LHD were automatically added to the state register. 5). Local Historic Place (LHP); with the designation “LHP”. 6). Local Historic District (LHD); with the designation “LHD”. 7). Historic Resource Surveys (HRI) 8). Survey of Outdoor Sculptures (SOS) 9). Civil War Monuments (CWM) 10). Municipal Parks (MP) 11). Historic Bridges (HB) 12). Town Greens (TG) 13). Connecticut Freedom Trails (CFTs) 14). Connecticut Barns (Barns) 15). Creative Places 16). Making Places 17). Connecticut Historic Commission (CHC) 18). State Owned Buildings: resources with this source were listed in the 1988 State Owned Buildings surveys and may not be reflective of present-day state-owned resources.
Public_Historic_Districts

The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped districts. For the previously unmapped districts, the boundaries were defined by any maps provided by the associated resource PDF, for resources that lacked a map the boundaries were drawn based on point location. The boundaries of these district polygons may not be reflective of the boundaries as interpreted by local governments. Please refer to the local ordinances for specific local boundary information.
ArchaeologyGrid

This layer denotes the presence of archaeology sites utilizing a grid based on the U.S. National Grid (10,000 m) divided into nine sections per 10,000 m grid. The red symbology represents the presence of archaeological sites in that sub grid and the blue represent the absence of presence of archaeological sites in that sub grid. Each sub grid is labeled with its placement in the 10,000 m grid, as seen below: NW (Northwest) NC (North Central) NE (Northeast) W (West) C (Central) E (East) SW (Southwest) SC (South Central) SE (Southeast) Each sub grid is also given a unique name with a naming convention based on the US National Grid and the Placement Label, as seen below: (US National Grid)-(Placement Label) 18T XM 25-NW
Coastal CT 2012 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 116 square miles of Connecticut's coast. Raster functions can be applied using the link below. Dataset Information Extent: Coastal Connecticut, 116 sq miles Dates: 2012 (November 11 - December 16), leaf off Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 1 meter DEM raster derived from Lidar point cloud Projection: Geographic, NAD83 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding NOAA Office for Coastal Management, US Army Corps of Engineers. Fugro Earthdata, Inc. collected the data.
Central CT 2014 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 1527 square miles of central Connecticut including the Connecticut River. Raster functions can be applied using the link below. Dataset Information Extent: Central Connecticut, 1527 sq miles Dates: 2014 (April 22 - May 29), leaf on Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 1 meter DEM raster derived from Lidar point cloud Projection: UTM Zone 18N, NAD83 2011 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding The United States Geological Survey (USGS). Dewberry collected the data.
Northwest CT 2011 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 658 square miles of northwestern Connecticut. Raster functions can be applied using the link below. Dataset Information Extent: Northwestern Connecticut, 658 sq miles Dates: 2011 (December 13-19), leaf off Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 1 meter DEM raster derived from Lidar point cloud Projection: UTM Zone 18N, NAD83 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding USDA Natural Resource Conservation Service (NRCS). Dewberry and Earth Eye LLC collected the data.
Southeast CT 2011 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 141 square miles of southeastern Connecticut. Raster functions can be applied using the link below. Dataset Information Extent: Extreme southeastern Connecticut, 141 square miles Dates: 2011 Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 2 meter DEM raster derived from Lidar point cloud Projection: UTM Zone 19, NAD83 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding This dataset was collected as part of the New England Lidar program with credit to the United States Geological Survey (USGS) and State of Maine's GIS Office. Photo Science Inc. collected the data.
Southwest CT 2011 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 455 square miles of southwestern Connecticut. Raster functions can be applied using the link below. Dataset Information Extent: Southwestern Connecticut, 455 sq miles Date: 2011 Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 2 meter DEM raster derived from Lidar point cloud Projection: UTM Zone 18, NAD83 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding This dataset was collected as part of the New England Lidar program with credit to the United States Geological Survey (USGS) and State of Maine's GIS Office. Photo Science Inc. collected the data.
Eastern CT 2010 Elevation (DEM)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. This dataset covers 1772 square miles of eastern Connecticut. Raster functions can be applied using the link below. Dataset Information Extent: Eastern Connecticut, 1772 sq miles Dates: 2010 (November 3 - December 11), leaf off Data Info: Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. Pixel Resolution: 1 meter DEM raster derived from Lidar point cloud Projection: UTM Zone 18N, NAD83 meters, NAVD88 meters Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) More Information - [Raster Functions] - [More Information] - [Metadata] Credit and Funding USDA Natural Resource Conservation Service (NRCS). Dewberry and Earth Eye LLC collected the data.
CT 2021 Summer Aerial Imagery (NAIP 4-band, 0.6 meter)

This image service is available through [CTECO], a partnership between [UConn CLEAR] and [CT DEEP]. It is a virtual mosaic of GeoTIFF tiles covering the state of Connecticut. Dataset Information Extent: Connecticut Dates: 2021: September 4 - November 6 Bands: 4 (red, green, blue, near-infrared) Pixel resolution: 0.6m Image Tile Projection: NAD83 UTM Zone 18N and 19N Service Projection: WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857) Tide Coordinated: No More Information - [2021 CT NAIP Image Dates] (the eastern part of the state was captured in September and the western in November. The differences in seasonality and leaf cover cause the imagery to look significantly different depending on the date of capture). - [National Agriculture Imagery Program (NAIP) GeoHub] - [All about Aerial Imagery on CT ECO] - [Metadata] Credit and Funding National Agriculture Imagery Program (NAIP), United States Department of Agriculture’s Farm Service Agency (USDA FSA)
Connecticut and Vicinity State Boundary Set

Connecticut and Vicinity State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map. These data are derived from Northeastern United States Political Boundary Master layer. This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
Connecticut and Vicinity Town Boundary Set

Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use it to map and label towns on a map. These data are derived from Northeastern United States Political Boundary Master layer. This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
Connected Sewer Service Areas

This data was created through the modification of an existing sewer service dataset from the CT Office of Policy and Management (OPM), in addition to sewer data from the Southeastern Connecticut Council Of Government (SCCOG) and the Town of Stonington. It also includes data from the Sewer Service Area 2018 file in areas where the OPM dataset was not as current. The OPM data was modified by reducing the extensive categories which represent all areas containing sewers to a "Connected" classification. SCCOG Data: Data was clipped to individual municipal boundaries for all 21 municipalities with sewer information within the SCCOG. The "Existing" category from attribute table was extracted via selection to create the "Connected" areas for 19/21 municipalities. The Town of Stonington data was merged with the SCCOG data as both had areas which were not included in the other. The North Stonington data was combined with SSA 2018 data to get the most accurate representation for that town. OPM Data: Data was modified to isolate the undefined and fragmented categories, (QA- using municipal websites, PDF maps and local contacts for verification where available) then Clipped to municipal boundaries. All the areas that are connected to sewers were Dissolved, only maintaining the key fields listed and described below. The datasets were combined using the Merge tool to get all the connected sewer service areas in the state. Description of Fields: TOWN- Represents all the municipalities with the state of CTs boundaries. CNTY_NAME- Represents the eight (8) county names to which each municipality belongs to. SEWERS- This field has two classes "Existing" and "No Sewer" and this identifies if a municipality has sewers existing within its boundary or not. SEWER-STATUS- The Sewer Status field represents the areas within in each municipality that are "Connected" to sewers. TREATMENTFACILITY- This field represents the sewer service treatment facility (endpoint) that processes the waste for each municipality. For municipalities without sewers, “Not Applicable” is the designated value. PASSTHROUGH- This field identifies if the wastewater passes through other municipalities on the way to the treatment facility (endpoint) as denoted by a "Yes" or "No" value. Feature class is symbolized on the Sewer Status field to show the “Connected” (green). DEEP welcomes the opportunity to receive any feedback that can help improve the quality of the information presented in this map by contacting Carlos Esguerra (carlos.esguerra@ct.gov).
Impaired 2022 River, Lake, Estuary Set

Connecticut 303(d) Impaired Waters 2022 is a subset of Connecticut 305(b) Assessed Waters 2022. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody is included in this subset and is considered impaired. Additional information about Integrated Water Quality reporting is available on the CT DEEP website, [Integrated Water Quality Report] page. Connecticut 305(b) Assessed Waters files includes rivers, lakes and estuaries that have been assessed in compliance with Sections 305(b) and 303(d) of the federal Clean Water Act. Section 305(b) of the Clean Water Act requires each state to monitor, assess and report on the quality of its waters relative to attainment of designated uses established by the State's water quality standards. Section 303(d) requires each State to compile a subset of that list identifying only those waters not meeting water quality standards and assign a Total Maximum Daily Load (TMDL) priority ranking to each impaired waterbody. This assessment is based on information collected and compiled prior to 2022. It represents conditions at a particular point in time and does not represent current conditions. Depending on the type of waterbody - river, lake, or estuary - this information geographically displays attainment and non-attainment (e.g. full supporting, not supporting, not assessed) for each designated use - aquatic life, marine aquatic life, recreation use, fish consumption, shellfish harvesting, and drinking water supply.
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 occurring in Connecticut. This layer is a subset of habitat-related vegetation associations, described in Connecticut's Natural Vegetation Classification, that were designated as key habitats for species of Greatest Conservation Need in the Comprehensive Wildlife Conservation Strategy. These habitats are known to host a number of rare species including highly specialized invertebrates with very specific habitat associations. Some key habitats are broken into subtypes based on natural variations in plant species dominance and/or vegetation structure. These differences are apparent in the subtype names. Connecticut Critical Habitats can serve to highlight ecologically significant areas and to target areas of species diversity. This layer can be used to perform various spatial analyses that pertain to Critical Habitats, to aid in determining site management and conservation priorities, prioritizing field surveys, and to further document the distribution and abundance of State-listed and/or rare vertebrate and invertebrate species within the significant habitats. Use this layer appropriately with data maintaining similar resolution. Not intended for maps printed at a resolution greater or more detailed than 1:2000.
Surficial Aquifer Potential

This map has been prepared for statewide ground water resource protection, water management, non-point source pollution prevention, and land use planning. The map was compiled from a geospatial analysis of the surficial materials and thickness of glacial sediments digital data layers of the Surficial Materials Map of Connecticut, Stone and others (1992) and Quaternary Geologic Map of Connecticut and The Long Island Sound Basin, Stone and others (1998, 2005). The map identifies areas with greater potential for ground water development based upon the texture and thickness of surficial aquifer deposits. The resulting hydrostratigraphic units define areas of coarse grained deposits, coarse overlying fine grained deposits, fine grained deposits, and areas where fine grained deposits overly coarse grained deposits. Aquifer deposit thickness intervals are 1-50 feet, 50-100 feet, 100-200 feet, 200-300 feet, and 300-400 feet. The Surficial Aquifer Potential Map was prepared by the Connecticut Geological Survey at the request of the Water Protection and Land Reuse Bureau of the Department of Environmental Protection. A statewide view of surficial aquifer resources is necessary to facilitate proactive aquifer protection and water supply planning. Previous statewide groundwater availability (Meade 1978) and ground water yields mapping (Mazzaferro 1986) provided excellent planning documents at the time of publication. The compilation presented here incorporates geologic mapping and interpretations of Stone et al (1992; 1998; 2005) unavailable in the earlier treatments. Notably, the Surficial Materials Map of Connecticut (Stone et al 1992), used in this compilation, provides detailed 1:24,000 scale mapping which delineates larger and more numerous areas of coarse-grained deposits than previously known.
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 is designed to be used to depict Connecticut counties at small scales or on small maps printed on regular size (8.5 x 11 inch) paper, for example. This County Index layer does not accurately represent Connecticut county boundaries because it was digitized at 1:125,000 scale. Do not display, map or analyze the County Index layer with information collected at larger scales. To depict more accurate 1:24,000-scale Connecticut state, county, and town boundaries on a map, use the layer named Town, which is also published by the State of Connecticut Department of Energy & Environmental Protection.
Connecticut Planning Region Index

Connecticut Planning Region Index is a general purpose index map of Connecticut Planning Regions based on mapped information compiled at 1:125,000 scale (1 inch equals approximately 2 miles) and a list of towns in each region available from the State of Connecticut, Office of Policy and Management. The layer is designed to be used to depict Connecticut Planning Regions at small scales or on small maps printed on regular size (8.5 x 11 inch) paper, for example. This Planning Region Index layer does not accurately represent planning region boundaries because it was digitized at 1:125,000 scale. Do not display, map or analyze this index layer with information collected at larger scales. To depict more accurate 1:24,000-scale Connecticut state, county, town, and planning region boundaries on a map, use the layer named Town, which is also published by the State of Connecticut Department of Energy & Environmental Protection. The 2012 Edition reflects consolidation of two organizations into the Lower Connecticut River Council of Governments.
Connecticut State

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 area encompassed by and the boundary for the State of Connecticut. The State of Connecticut is represented as one polygon feature surrounded by linear boundary features. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and latitude and longitude coordinates that define the boundary between the states of Connecticut and New York in Long Island Sound. Feature length and geographic area are encoded for linear and polygon features, respectively. This layer was originally published in 1994. Connecticut State Polygon includes the polygon features of a layer named Connecticut. Connecticut is a 1:24,000-scale, polygon and line feature-based layer that depicts the geographic area encompassed by and the boundary for the State of Connecticut. The State of Connecticut is represented as one polygon feature surrounded by linear boundary features. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and latitude and longitude coordinates that define the boundary between the states of Connecticut and New York in Long Island Sound. Feature length and geographic area are encoded for linear and polygon features, respectively. This layer was originally published in 1994.