Information used to reference the data.
Title: Tidal Wetlands 1970s
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Publisher: State of Connecticut, Department of Environmental Protection
Publication place: Hartford, Connecticut, USA
Publication date: 1999
Data type: vector digital data
Other citation details:
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. Data compiled at 1:24,000 scale.
A characterization of the data, including its intended use and limitations.
Tidal Wetlands 1970's represents the historic regulatory tidal wetland boundaries produced during the early 1970's by the State of Connecticut Department of Agriculture and Natural Resources, which defined the areas of tidal wetlands that were subject to the 1969 Tidal Wetlands Act.
The first comprehensive tidal wetlands mapping of the state was undertaken during the 1970's following the passing of the Tidal Wetland Act (TWA) in 1969. The TWA established a permit program to regulate activities conducted in tidal wetlands. The TWA had a mandatory mapping requirement to let property owners know the approximate location of regulated tidal wetland areas. Unfortunately, during the adoption of the regulations, the tidal wetland maps were given greater importance, than was originally intended, such that the maps were used to determine the regulated area rather than the actual site conditions. The mandated revisions to the maps were never undertaken as no additional funding was authorized. (See the Tidal Wetlands 1990's Datalayer for subsequent wetlands mapping.)
The regulatory tidal wetland boundaries were surveyed in the field and these boundaries were transferred to 1" = 200' (1: 24000 scale) mylars derived from black and white low altitude aerial photography. It is known that the mapping criteria did change and evolve as the surveyors became more experienced with tidal wetland delineation. It also was not unusual for controversial parcels to be omitted as a result of adverse comments received at public hearings prior to the adoption of the maps. Additionally, no maps were ever produced to show "formerly connected" wetlands, a special type of wetlands. Thus, even at the time of their adoption, the 1970's tidal wetland maps did not include all known tidal wetlands in Connecticut.
For more information, please refer to the Tidal Wetlands Report at http://www.ct.gov/dep/lib/dep/gis/coastalresources/tidal_wetlands_report.pdf .
The layer does not depict current conditions. It is not updated.
Tidal Wetlands 1970's is 1:24,000-scale data. It depicts the location of some (but not all) tidal wetlands circa the late 1960's and early 1070s. Use this layer to depict the location of historic (1970's) wetlands. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
Tidal Wetlands' are defined as follows: 'Tidal Wetlands' means 'wetland' as defined by C.G.S.Sec. 22a-29. C.G.S.Sec.22a-93(7)(E). 'Wetland' means those areas which border or lie beneath tidal waters, such as, but not limited to banks, bogs, salt marshes, swamps, meadows, flats, or other low lands subject to tidal action, including those areas now or formerly connected to tidal waters, and whose surface is at or below an elevation of one foot above local extreme high water; and upon which may grow or be capable of growing some but not necessarily all, of the following: (See the statute for a complete listing of tidally influenced plant species) C.G.S.Sec.22a-29(2).
Visit http://www.ct.gov/dep/lib/dep/gis/coastalresources/tidal_wetlands_report.pdf for more information.
Language of dataset: en
Contact information for the individual or organization that is knowledgeable about the data.
Organization: State of Connecticut, Department of Environmental Protection
Person: Kevin O'Brien
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
State or Province: Connecticut
Postal code: 06106-5127
How the data are represented, formatted and maintained by the data producing organization.
File or table name: depgis.DEP.TIDAL_WETLANDS_1970S
Data type: vector digital data
Data format: SDE Feature Class
Native dataset environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 188.8.131.5200
Time period(s) for which the data corresponds to the currentness reference.
Beginning date: 1969
Ending date: 1975
The state of and maintenance information for the data.
Data status: Complete
Update frequency: None planned
Words or phrases that summarize certain aspects of the data.
Keywords: biota, boundaries, environment
Keyword thesaurus: ISO 19115 Topic Category
Keywords: Connecticut, CT
Keyword thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Keywords: United States of America, USA
Keyword thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Restrictions and legal prerequisites for accessing or using the data after access is granted.
None. No restrictions or legal prerequisites for accessing the data. The data is in the public domain and may be redistributed.
None. No restrictions or legal prerequisites for using the data after access is granted. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of 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 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 Environmental Protection as the source for this information.
These data are suitable for planning purposes only, and should not be used to make regulatory or jurisdictional boundary determinations.
Data Security Information
Handling restrictions imposed on the data because of national security, privacy or other concerns.
Security classifiction system: None
Security classification: None
Security handling: No restrictions for handling the data.