AndreaBozzo/ceres-open-data-index huggingface dataset:
Federal Open Space

<div><a href='https://cteco.uconn.edu/guides/Federal_Open_Space.htm' target='_blank' rel='nofollow ugc noopener noreferrer'>See full Data Guide here. </a><br /></div>Federal Open Space is a polygon feature-based layer that includes land owned in either easement or fee simple interest by the federal government. This layer is based on information that was collected and mapped at various scales and at different levels of accuracy. Types of property in this layer include open space and recreational land open to <span style='background-color:rgb(255, 255, 255);'>the public. Examples</span> include National Park Service land, Army Corps of Engineers land, etc.<div><br /></div><div>This layer has not been updated since 2004 and may not be accurate. <br /><div><br /></div></div>
Connecticut Quasi-Public Organization Financial Data, FY 2015-2018

This dataset summarizes checkbook information about quasi-public organizations in Connecticut from FY 2015 through FY 2018. Note that this dataset is incomplete and does not include data for every organization for each year.

Quasi-public agencies are independent government corporations that are created through legislation to perform a particular service or set of public functions. Most quasi-public agencies depend primarily on sources of revenue associated with the services they provide. In Connecticut, quasi-public agencies are required to submit annual reports to the legislature, including a summary of their activities and financial information.

The quasi-public organizations included in this dataset are: 

AccessHealthCT
Connecticut Airport Authority
Connecticut Health and Educational Facilities Authority
Connecticut Higher Education Supplemental Loan Authority
Connecticut Housing Finance Authority
Capitol Region Development Authority
Connecticut Innovations
Connecticut Green Bank
CT Lottery
Materials Innovation and Recycling Authority
Connecticut Port Authority
State Education Resource Center
Connecticut Student Loan Foundation

More recent financial information on quasi-public organizations is published by the CT Data Collaborative and is available at https://openquasi.ct.gov/.
Assisted Living Facilities with Residents Positive for COVID-19 - ARCHIVE

Note: This dataset is no longer being maintained and will not be updated going forward.

The weekly and cumulative number of residents with confirmed COVID-19 and with COVID-19 associated deaths is obtained from data self-reported by individual assisted living facilities to the Long Term Care Mutual Aid Plan web-based reporting system (www.mutualaidplan.org/ct). Both confirmed and suspect deaths are included. 

Confirmed deaths include those among persons who tested positive for COVID-19. Suspected deaths include those among persons with signs and symptoms suggestive of COVID-19 but who did not have a laboratory positive COVID-19 test. Due to differing data collection and processing methods between LTC-MAP and the death data sources used previously, cumulative death data for residents was re-baselined on July 14, 2020. The resident death data before and after July 14, 2020 should not be added due to the differing definitions of COVID-19 associated deaths used and the possibility of duplication of deaths among prior and current data.  

The cumulative number of deaths among assisted living residents is based upon data reported by the Office of the Chief Medical Examiner. For public health surveillance, COVID-19-associated deaths include persons who tested positive for COVID-19 around the time of death (laboratory-confirmed) and persons whose death certificate lists COVID-19 disease as a cause of death or a significant condition contributing to death (probable). As of 7/15/20 deaths reported by the Office of the Chief Medical Examiner are no longer being updated on a weekly basis.
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 &amp; Environmental Protection.
Wells in Connecticut

Submitted online since January 1, 2021. <a href="https://elicense.ct.gov/Lookup/OnlineReportExecute.aspx?queryIdnt=31047" target=_blank>Print a copy of an individual report</a> at https://elicense.ct.gov and click on "Public Reports". (Note: You will need the DCP Report ID, found in the 6th column of this report.)
Environmental Justice 2021 Set

Environmental Justice Block Groups 2021 was created from Connecticut block group boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles. The poverty data used to determine which block groups qualified as EJ communities (see CT State statute 22a-20a) was based on the Census Bureau's 2019 ACS 5-year estimate- Table C17002. This poverty data was joined with the block group boundaries in ArcMap. Block groups in which the percent of the population below 200% of the federal poverty level was greater than or equal to 30.0 were selected and the resulting selection was exported as a new shapefile. The block groups were then clipped so that only those block groups outside of distressed municipalities were displayed. Maintenance – This layer will be updated annually and will coincide with the annual distressed municipalities update (around August/September). The latest ACS 5-year estimate data should be used to update this layer.

Environmental Justice Distressed Municipalities 2021 was created from Connecticut town boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles (County Subdivisions). <div><br /></div><div>From this shapefile, &quot;select by attribute&quot; was used to select the distressed municipalities by town name (note: the list of 2021 distressed municipalities was provided by the CT Department of Economic and Community Development). The selection was then exported a new shapefile. The “Union” tool was used to unite the new shapefile with tribal lands (American Indian Area Geography) boundary data from the 2019 TIGER/Line files. In the resulting layer, the tribal lands were deleted so only the distressed municipalities remained. Maintenance – This layer will be updated annually when the DECD produces its new list of distressed municipalities (around August/September).</div>
Spill Incidents from January 1, 1996 to June 30, 2022

Note:  Please use this link to leave the data view and to see the full description: https://data.ct.gov/Environment-and-Natural-Resources/Spill-Incidents/wr2a-rnsg

Description of Dataset:
This data set represents information reported between July 1, 1996 and June 30, 2022 to the Department of Energy and Environmental Protection (CT DEEP), generally to the CT DEEP Dispatch Center, regarding releases of substances to the environment, generally through accidental spills.  For information related to releases reported to CT DEEP from July 1, 2022 to the present, go to  Incident Reports for Releases Reported to CT DEEP July 1, 2022 to present at: https://connecticut.hazconnect.com/listincidentpublic.aspx

For a dataset related to releases reported to CT DEEP from July 1, 2022 to recent refer to the CT Open Data dataset:  https://data.ct.gov/Environment-and-Natural-Resources/Spill-Incidents-from-July-1-2022-to-Recent-for-Dow/ffju-s5c5

Connecticut General Statutes Section 22a-450 requires anyone who causes any discharge, spillage, uncontrolled loss, seepage or filtration of oil or petroleum or chemical liquids or solid, liquid or gaseous products, or hazardous wastes which poses a potential threat to human health or the environment to report that release to the CT DEEP.  Reports of releases from other persons are also included in this dataset.

Examples of what may be included in a spill incident record includes: Administrative information (unique spill case number). Spill date/time. Location. Spill source and cause. Material(s) and material type spilled. Quantity spilled. Measurement units. Surface water bodies affected. 

Data limitations and factors to consider when using this data: 
This data is limited to information about a spill incident as it was known at the time it was reported to CT DEEP. Although some data reflects updated information after the time of the initial notification, CT DEEP is unable to field check and verify all reported information.  Therefore, information later determined to be incomplete or inaccurate may exist in this data set.  There may also be spelling errors or other unintentionally inaccurate data that was transcribed in the spill incident report.

This dataset is a subset of records and information that may be available about releases that have occurred at specific locations.  This dataset does not replace a full review of files publicly available either on-line and/or at CT DEEP’s Records Center. 

For a complete review of agency records for this or other agency programs, you can perform your own search in our DEEP public file room located at 79 Elm Street, Hartford CT or at our DEEP Online Search Portal at:  https://filings.deep.ct.gov/DEEPDocumentSearchPortal/Home .

If errors are found or there are questions about the data, please contact the program unit using the following email address: DEEP.SpillsDocs@ct.gov
Unimproved Roads

A custom basemap created for internal Connecticut Department of Transportation in web apps and maps.<div><br /></div><div>The basemap represents the most recent and active Public Road Network as maintained by the Bureau of Policy &amp; Planning's Roadway Inventory Unit and is updated on an annual basis.</div><div><br /></div><div>Map styling mimics the format of an Open Street Maps style basemap and routes are differentiated by their prefix (e.g. Interstate, US, CT, etc.) with local roads sharing the same symbiology across the state.</div><div><br /></div><div><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>At closer zoom levels, ortho imagery from 2019 appears within the map extent.</span><br /></div>
Aquifer Protection Area

See full Data Guide here. Aquifer Protection Areas Set is a 1:24,000-scale, polygon feature-based layer that includes all Preliminary (Level B) and Final (Level A) Aquifer Protection Areas approved by the Connecticut Department of Energy and Environmental Protection (DEEP). These areas represent the land area contributing ground water to active public water supply wells or well fields that serve more than 1000 people that are set in sand and gravel aquifers (stratified drift deposits). These areas are commonly referred to as wellhead protection areas. The Aquifer Protection Areas were delineated by the individual water utilities owning the well fields and submitted to the DEEP for approval. The preliminary mapping provides a general estimate of the area contributing ground water to the well field. The final mapping is based on extensive, site-specific, detailed modeling of the ground water flow system. As the final mapping is completed it replaces the preliminary mapping. The layer is based on information collected and compiled from 1991 to the present. The layer depicts current conditions. Attribute information is comprised of codes to uniquely identify individual features, encode the aquifer protection area type and status, and cartographically represent area features on a map. Data is compiled at 1:24,000 scale. This data is updated as final mapping becomes available.
Towns

A custom basemap created for internal Connecticut Department of Transportation in web apps and maps.<div><br /></div><div>The basemap represents the most recent and active Public Road Network as maintained by the Bureau of Policy &amp; Planning's Roadway Inventory Unit and is updated on an annual basis.</div><div><br /></div><div>Map styling mimics the format of an Open Street Maps style basemap and routes are differentiated by their prefix (e.g. Interstate, US, CT, etc.) with local roads sharing the same symbiology across the state.</div><div><br /></div><div><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>At closer zoom levels, ortho imagery from 2019 appears within the map extent.</span><br /></div>
Nursing Homes with Residents Positive for COVID-19, April - June 2020 - Archive

Nursing homes with residents positive for COVID-19 from 4/22/2020 to 6/19/2020. 

Starting in July 2020, this dataset will no longer be updated and will be replaced by the CMS COVID-19 Nursing Home Dataset, available at the following link: https://data.ct.gov/Health-and-Human-Services/CMS-COVID-19-Nursing-Home-Dataset/w8wc-65i5. 

Methods: 
1) Laboratory-confirmed case counts are based upon data reported via the FLIS web portal. Nursing homes were asked to provide cumulative totals of residents with laboratory confirmed covid. This includes residents currently in-house, in the hospital, or who are deceased. Residents were excluded if they tested positive prior to initial admission to the nursing home. 
2) The cumulative number of deaths among nursing home residents is based upon data reported by the Office of the Chief Medical Examiner. For public health surveillance, COVID-19-associated deaths include persons who tested positive for COVID-19 around the time of death (laboratory-confirmed) and persons whose death certificate lists COVID-19 disease as a cause of death or a significant condition contributing to death (probable).
 
Limitations:
1) As of the week of 5/10/20, Point Prevalence Survey testing is being offered to all asymptomatic nursing home residents to inform infection prevention efforts. Point prevalence surveys will be conducted over a period of several weeks. Some nursing homes had adequate testing resources available to conduct surveys prior to this date. Differences in survey timing will impact the number of positive results that a nursing home reports.
2) Cumulative totals of residents testing positive are being collected rather than individual resident data. Thus we cannot verify the counts, de-duplicate, and/or verify whether there is a record of a positive lab test. This may result in either under- or over-counting.
3) The number of COVID-19 positive residents and the number of confirmed deaths among residents are tabulated from different data sources. Due to the timing of availability of test results for deceased residents, it is not appropriate to calculate the percent of cases who died due to COVID-19 at any particular facility based upon this data.
4) The count of deaths reported for 4/14 are not included in this dataset, as they were not broken out by laboratory-confirmed or probable. They can be viewed in the DPH Report here: https://portal.ct.gov/-/media/Coronavirus/CTDPHCOVID19summary4162020.pdf?la=en
Municipal Fiscal Indicators 2012-2016

Municipal Fiscal Indicators is an annual compendium of information compiled by the Office of Policy and Management, Office of Finance, Municipal Finance Services Unit (MFS). The data contained in Indicators provides key financial and demographic information on municipalities in Connecticut.

Municipal Fiscal Indicators contains the most current financial data available for each of Connecticut's 169 municipalities. The majority of this data was compiled from the audited financial statements that are filed annually with the State of Connecticut, Office of Policy and Management, Office of Finance. This database of information includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition. The most recent edition is for the Fiscal Years Ended 2012-2016 published in December of 2017 (amending the January 2017 version).

Note:  Information revised February 7, 2018 for the Tax Exempt Property data beginning on Page B-25 of the report.
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.<div><br /><div>Each sub grid is labeled with its placement in the 10,000 m grid, as seen below: <br /><br />NW (Northwest)</div><div>NC (North Central)<br />NE (Northeast)<br />W (West)<br />C (Central)<br />E (East)<br />SW (Southwest)<br />SC (South Central)</div><div>SE (Southeast) </div><div><br /></div><div>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:<br /></div></div><div><br /></div><div>(US National Grid)-(Placement Label)<br />18T XM 25-NW<br /></div>
CTDOT Office of the State Traffic Administration (OSTA) Interactive Map

<p>Web Mapping Application containing all layers from the Office of the State Traffic Administration that enables the user to visually review, search, and query OSTA data, including; State, Local, and School Zone Speed Limits, Major Traffic Generators at defined points within the approval process, No Thru Truck designations, and Parkway Restrictions on height, width, and weight.</p>
COVID-19 Contact Tracing: ContaCT Summary - ARCHIVE

Note: This dataset has been archived and is no longer being updated.

Contact tracing is the process of contacting all people who have tested positive for COVID-19 or have had contact with someone who tested positive. The software for contact tracing in Connecticut is called ContaCT. ContaCT is used for monitoring the health and wellbeing of people affected by COVID-19 and assists in facilitating timely and accurate contact tracing.

This dataset includes metrics on COVID-19 cases in the ContaCT system and the contacts associated with those cases for each reporting period, including:

Total actionable community cases
Attempted interviews within 48 hours - cases
Successful interviews within 48 hours - cases
Total actionable community contacts
Attempted interviews within 48 hours - contacts
Successful interviews within 48 hours - contacts
Ratio of contacts:cases
Number of cases listing at least one contact
Median contacts reported
Range of contacts reported (min)
Range of contacts reported (max)

All data are preliminary and are subject to change.

Additional information on COVID-19 Contact Tracing can be found here: https://portal.ct.gov/Coronavirus/ContaCT
List of Contaminated or Potentially Contaminated Sites

Data to create the List of Contaminated or Potentially Contaminated Sites is based on records from the Connecticut Department of Energy and Environmental Protection (DEEP)’s online REACT portal at: https://deep-react.service.ct.gov/s/    The REACT application tracks environmental cleanups related to contaminant releases and contaminated properties.  Data exported from that application creates this data set.  This data set is made available to provide downloadable data about known environmental cleanups generally and to fulfill the information-sharing obligations of Connecticut General Statutes 22a-133c and 22a-134f related to lists of hazardous waste disposal sites and hazardous waste facilities in Connecticut.

DEEP staff and authorized public users update REACT data and upload documents to document cleanup progress. For more information visit: https://portal.ct.gov/DEEP/Remediation--Site-Clean-Up/Remediation-Site-Clean-Up  .   

Public documents uploaded to REACT are also available either electronically in the DEEP Online Document Search Portal at: https://filings.deep.ct.gov/DEEPDocumentSearchPortal/  or in DEEP’s Records Center at DEEP Headquarters, 79 Elm Street, Hartford:  https://portal.ct.gov/DEEP/About/Environmental-Quality-Records-Records-Center-File-Room

Each Row represents a release or property that is undergoing investigation and cleanup or has completed cleanup. Data to compile the list was gathered for each location (“site”) from information provided to DEEP to address the requirements of various regulatory cleanup programs. Sites may be in multiple cleanup programs and therefore may be listed more than once. Some sites have been fully cleaned up while others have limited information about the environmental conditions. The list includes only sites that have been reported to CT DEEP or US EPA.

There may be errors in the dataset although we strive to minimize them. Examples of errors may include misspelled or incomplete addresses and/or missing data.

For additional information about this dataset please contact DEEP.REACT@ct.gov.  
Additional information for sites within the Hazard Notification program can be found at: https://portal.ct.gov/DEEP/Remediation--Site-Clean-Up/Significant-Environmental-Hazard-Program/Significant-Environmental-Hazards

Significant Environmental Hazard Sites GIS Map:  https://experience.arcgis.com/experience/9c100aa21fbe4ee180df9942d000f676

Details on columns which reference ELUR: Environmental Land Use Restriction (ELUR) or Notice and Use Limitation (NAUL) are used to minimize the risk of human exposure to pollutants and hazards to the environment by preventing specific uses or activities at a property or a portion of a property. Link to GIS map of ELUR and restriction type: https://experience.arcgis.com/experience/a2739d7bec6c44949ee8d933be11f541
Selected Online Sport Wagering Data

Notes:
(1) Monthly payments are due to the State by the 15th of the following month.
(2) The operation of the online sports wagering began on October 12, 2021.
(3) Monthly resettlements are wagers where the original settled wager result is modified due to an error or change in result of the underlying event.
(4) Federal Excise Tax is 0.25% of Net Wagers.
(5) This amount shall only include coupons and credits issued for use for gaming in the state and redeemed in the State of Connecticut.
(6) Per Public Act 21-23, from October 2021 – September 2022 the promotional deduction is limited to the lesser of 25% of sports wagering Win/Loss, or actual promotional coupons or credits wagered.  From October 2022 – September 2023 this limit drops to 20%, and to 15% thereafter..
(7) Payment rate is 13.75% of Gross Gaming Revenue.  Monthly payment is the greater of the calculated payment or $0 (if calculated payment is negative).
(8) In May 2022, MPI Master Wagering License CT, LLC reclassified $2.6M of certain bets from October 2021 - March 2022 originally reported as resettlements, as winnings.
This had no impact on Gross Gaming Revenue or payments to the state because winnings and resettlements are treated the same in the GGR calculation.  Corrected amounts are reported above.
(9) In May 2022, MPI Master Wagering License CT, LLC revised its October 2021 filing to reflect patron winnings that were cashed after the close of operations during the limited
hours of Soft Launch.  This adjustment reduced the payment due to the State of Connecticut by $31,669; taken as a credit against the May 2022 payment due.
(10) In July 2024, Mohegan Digital, LLC's online gaming operator identified and reported data latency issues that caused errors in the May 2024 payment calculations submitted to the State of Connecticut.  Mohegan Digital, LLC  amended their May 2024 return, which resulted in an increase of $15,952 in both Wagers and Cancelled Wagers, an Increase of $5,375 in Patron Winnings, and a decrease of $5,375 in Monthly Resettlements.  Amended figures are shown above.
(11) In December 2025, DraftKings revised its October 2025 filing to correct for an over reporting of $12,897 in patron winnings.  This resulted in an additional payment of $1,773.  Corrected amounts are reported above.