This layer includes polygon features that depict protected open space for towns of the Protected Open Space Mapping (POSM) project, which is administered by the Connecticut Department of Energy and Environmental Protection, Land Aquisition and Management. Only parcels that meet the criteria of protected open space as defined in the POSM project are in this layer. Protected open space is defined as: (1) Land or interest in land acquired for the permanent protection of natural features of the state's landscape or essential habitat for endangered or threatened species; or (2) Land or an interest in land acquired to permanently support and sustain non-facility-based outdoor recreation, forestry and fishery activities, or other wildlife or natural resource conservation or preservation activities. Includes protected open space data for the towns of Andover, Ansonia, Ashford, Avon, Beacon Falls, Canaan, Clinton, Berlin, Bethany, Bethel, Bethlehem, Bloomfield, Bridgewater, Bolton, Brookfield, Brooklyn, Canterbury, Canton, Chaplin, Cheshire, Colchester, Colebrook, Columbia, Cornwall, Coventry, Cromwell, Danbury, Derby, East Granby, East Haddam, East Hampton, East Hartford, East Windsor, Eastford, Ellington, Enfield, Essex, Farmington, Franklin, Glastonbury, Goshen, Granby, Griswold, Groton, Guilford, Haddam, Hampton, Hartford, Hebron, Kent, Killingworth, Lebanon, Ledyard, Lisbon, Litchfield, Madison, Manchester, Mansfield, Marlborough, Meriden, Middlebury, Middlefield, Middletown, Monroe, Montville, Morris, New Britain, New Canaan, New Fairfield, New Milford, New Hartford, Newington, Newtown, Norfolk, North, Norwich, Preston, Ridgefield, Shelton, Stonington, Oxford, Plainfield, Plainville, Pomfret, Portland, Prospect, Putnam, Redding, Rocky Hill, Roxbury, Salem, Salisbury, Scotland, Seymour, Sharon, Sherman, Simsbury, Somers, South Windsor, Southbury, Southington, Sprague, Sterling, Suffield, Thomaston, Thompson, Tolland, Torrington, Union, Vernon, Wallingford, Windham, Warren, Washington, Waterbury, Watertown, West Hartford, Westbrook, Weston, Wethersfield, Willington, Wilton, Windsor, Windsor Locks, Wolcott, Woodbridge, Woodbury, and Woodstock. Additional towns are added to this list as they are completed. The layer is based on information from various sources collected and compiled during the period from March 2005 through the present. These sources include but are not limited to municipal Assessor's records (the Assessor's database, hard copy maps and deeds) and existing digital parcel data. The layer represents conditions as of the date of research at each city or town hall. Protected Open Space Data includes the following attribute information: object id (system-generated ID), assessor's map number, assessor's lot number, assessor's block number, official name of the open space parcel, the street number, street name, town, grantor, grantee, the deed volume and page numbers, survey reference, area of parcel reported on a survey, area reported in deed, area calculated by the GIS, assessed area, open space type*, project specific parcel ID number (PAR_ID), comments collected by researchers during city/town hall visits, the title of the survey map, the CT DEP researcher, the type of deed, date of recording of the deed, the date a record was revised, the survey map class, and a unique pin no. assigned by the town, if applicable. Some attributes that were included in Phase 1 were not included in Phase 2. These are water frontage and coastal frontage. Attribute data are based on information from sources collected and compiled during the period from March 2005 through the present. These sources include municipal assessor data, both paper and electronic, any other appropriate town records, such as deed data and survey map information. This table does not contain records for parcels that do not meet the definition of open space as defined above. In addition, developed recreation areas such as ballfields, playgrounds, and swimming pools were not included if less than 10 acres, and, if over 10 acres, were not included if the developed portion of the parcel exceeded 50% of the total parcel area. *Open space type has 11 possible entries. These include: Land Trust, Land Trust with buildings, Private, Private with buildings, Federal, State, Municipal, Municipal with Buildings, Conservation Easement, Other, and No Data.
For additional information, contact the Land Acquisition and Management Division of the Connecticut Department of Energy and Environmental Protection at 860-424-3016.
publication date
Protected Open Space Data is the attribute table for Protected Open Space feature class. (Source: State of Connecticut, Department of Environmental Protection)
Internal feature number. (Source: ESRI)
Parcel identification number comprised of a three-digit state assigned town ID number and the respective parcel's 1-4 digit Object ID number. This parcel ID field is used to link POSM2 with POSM2_Details, which also contains the unique parcel ID number. (Source: Applied Geographics, Inc.)
Assessor's map number (Source: Connecticut Department of Environmental Protection)
Assessor's block number (Source: Connecticut Department of Environmental Protection)
Assessor's lot number (Source: Connecticut Department of Environmental Protection)
The full, official name of the open space parcel. (Source: Connecticut Department of Environmental Protection)
The street number of the open space parcel. (Source: Connecticut Department of Environmental Protection)
The street name of the open space parcel. (Source: Connecticut Department of Environmental Protection)
The town in which the parcel is located. (Source: Connecticut Department of Environmental Protection)
The previous owner of the open space parcel at the time of research at town/city hall. (Source: Connecticut Department of Environmental Protection)
The current owner of the open space parcel at the time of research at town/city hall. (Source: Connecticut Department of Environmental Protection)
The assessor's deed volume number. (Source: Connecticut Department of Environmental Protection)
The assessor's deed page number. (Source: Connecticut Department of Environmental Protection)
The Town Clerk's survey tracking number. (Source: Connecticut Department of Environmental Protection)
The area in acres reported on a survey of the open space parcel. (Source: Connecticut Department of Environmental Protection)
The area in acres reported on the deed for the open space parcel. (Source: Connecticut Department of Environmental Protection)
The area in acres calculated by the GIS. (Source: Connecticut Department of Environmental Protection)
The assessor's assessed area in acres (Source: Connecticut Department of Environmental Protection)
The open space type of the parcel. (Source: Connecticut Department of Environmental Protection)
| Value | Definition |
|---|---|
| Land Trust | Parcel owned by a land trust |
| Land Trust w/Bld | Parcel owned by a land trust and containing one or more structures |
| Private | Parcel that is privately owned but is considered open space. |
| Private w/Bld | Parcel that is privately owned, is considered open space, and contains one or more structures. |
| Conserv. Easement | Parcel that is preserved via a conservation easement only. |
| Federal | Parcel that is owned by an agency of the United States government. |
| Municipal | Parcel that is owned by the municipality. |
| Municipal w/Bld | Parcel that is owned by the municipality and that contains one or more structures. |
| State | Parcel that is owned by the State Department of Environmental Protection. |
| Other | Parcel type does not conform with any other value. |
| No Data | No Data exists for this town. |
The comments provided by the CT DEP researcher at the time of town/city hall research. (Source: Connecticut Department of Environmental Protection)
The initials of the CT DEP researcher. (Source: Connecticut Department of Environmental Protection)
The type of deed referenced during research. (Source: Connecticut Department of Environmental Protection)
The date of recording of the deed referenced in DEED_TYPE. (Source: Connecticut Department of Environmental Protection)
The date of revision for any specific record in the database. (Source: Connecticut Department of Environmental Protection)
The class of the survey on file in the town's land records. Example: A-2, D, Other. (Source: Connecticut Department of Environmental Protection)
An additional unique identifier that the town uses for their parcel identification. (Source: Connecticut Department of Environmental Protection)
Combination of Map, Block and Lot Numbers. (Source: Connecticut Department of Environmental Protection)
The official state and federal identification number of the town. (Source: Connecticut Department of Environmental Protection)
Protected Open Space Data includes the attributes of the parcels defined as open space in Phase 2 of the CT DEEP Protected Open Space Mapping (POSM) Project. This table provides detailed information to accompany the Protected Open Space layer about each parcel's collection, standardization and storage. This table can be joined to Protected Open Space in ArcMap using the Par_ID field. Detailed information in the table includes ObjectID (system-generated ID), Assessor's map number, Assessor's lot number, Assessor's block number, Official Name of the open space parcel, the street number, street name, town, grantor, grantee, the deed volume and page numbers, survey reference, area of parcel reported on a survey, area reported in deed, area calculated by the GIS, assessed area, open space type, project specific parcel ID number, comments collected by researchers during city/town hall visits, the survey map title, the CT DEP researcher, the type of deed, date of recording of the deed, the date a record was revised, the survey map class, and a unique pin no. assigned by the town, if applicable. Some attributes that were included in Phase 1 were not included in Phase 2. These are water frontage and coastal frontage.
79 Elm Street
Protected Open Space Data consists of attribute information about parcels designated as permanently protected open space by the Connecticut Department of Environmental Protection in Phase 2 of the Protected Open Space Mapping (POSM) project. Phase 2 initially comprised of inland Connecticut towns, but has broadened to include towns along the Connecticut coastline. Use this table to view the attribute data for the open space parcels in the corresponding Protected Open Space feature class. Join the feature class to this table using the PAR_ID field. Protected Open Space Data contains 26 attributes that describe each feature.
Assessor's data, such as CAMA (computer aided mass appraisal) data and hard copy tax maps on file with the municipal assessor were used to verify or identify attribute information about a parcel.
Hard copy deeds on file with the town clerk were used to verify or identify attribute information about a parcel.
Surveys on file with the town clerk's office were used to verify or identify attribute information about a parcel.
Table produced by either Applied Geographics, Inc. or DEP GIS staff to provide a basis for initial research in town halls by POSM researchers (DEP staff).
Final product - attribute table for Protected Open Space feature class.
Electronic CAMA (computer aided mass appraisal) data was collected from each town. This was then entered into appropriate fields in the POSM database, depending on the type and quality of the data received. For example, if the electronic data contained a map, block, and lot, this data was entered into the map, block and lot fields in the POSM database. This initial CAMA data table served as the basis for subsequent research by CT DEP researchers. This step was performed by Applied Geographics, Inc. from 2005 through 2007 and by the Connecticut Department of Environmental Protection from 2007 through the present.
48 Purnell Place, Suite 16
Field researchers from the CT DEP visited each town and collected more complete data than that collected in Process Step 1. One record was created for each open space parcel in each town. The parcel id from the Protected Open Space data layer (see metadata for the Protected Open Space feature class) was then assigned to each record in the Protected OpennSpace Data table. The Protected Open Space GIS layer could then be joined to Protected Open Space Data via the unique par_id to display attribute data for each mapped parcel.
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A series of quality assurance/quality control (qa/qc) steps were performed to verify the accuracy of the table data. These include spelling checks, terminology consistency, typographical errors, grammatical checks, field data omissions, and comparison of data to features in the Protected Open Space feature class.
79 Elm Street
Fields MBL and Town_No added and populated.
79 Elm Street
Protected Open Space Data retains the information identified by the State of Connecticut, Department of Environmental Protection and obtained from towns' Assessor's data, electronic parcel data or hardcopy deed data collected from the associated town clerk's office. All attributes have valid values. Values are within defined domains. The accuracy of the attribute data depends on the accuracy of the source data at the time of collection. Collection of data consisted of 1) contacting the municipality to request a copy of the electronic data, 2) standardizing the data into the POSM project standard data model, 3) visiting the municipality to identify, verify and correct the open space parcel data that met the CT DEEP's definition of open space for this project, and 4) linking the CT DEEP's researched data to the original parcel dataset from the municipality. Data quality assurance and control was preformed by the CT DEEP. DEP researchers visited each Town Hall and extracted open space parcel data through research of the Tax Assessor's records, Land Records, or other sources such as Engineering or Planning Department records. Due to the diverse methods of identifying and recording open space data by town officials, the researcher needed to employ methods specific to the town they were researching. Because some towns do not accurately account for tax-exempt land, some attribute data may not be complete or accurate.
The completeness of the data reflects the accuracy and completeness of the researched municipal data and its linkage to the Protected Open Space features. The Protected Open Space Data table is complete in the sense that it contains the contents of the source information available at the time the CT DEEP created the table. However, compared to current conditions, the table may not be complete. This data is not updated beyond the original data collection date for each town and each parcel record.
There is one record per open space parcel. If a parcel has been split and is not yet shown as such in the town's GIS layer, then that parcel was not included. No parcels were edited and no new parcels were created in the GIS layer. As a result, there are a number of open space parcels that were not included in this table.
No restrictions or legal prerequisites for using the data. Although this data set has been created by the State of Connecticut, Department of Energy and Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Energy and Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Energy and Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Energy and Environmental Protection as the source for this information.
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| Data format: | in format Shapefile, Feature Class (version ArcGIS) |
|---|---|
| Network links: | http://www.ct.gov/deep |
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
79 Elm Street