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Salt Water Limit

Frequently-asked questions:


What does this data set describe?

Title:
Salt Water Limit

Abstract:
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut.  It is important to note that the exact demarcation of the salt-water extent is often not accurate.  As stated in the report known as Source 1 in this metadata ("The Boundary Between Freshwater and Saltwater in Connecticut"):   "Any definition and demarcation of the boundary between saltwater and freshwater is, of necessity, an approximation. The boundary is transitory and, at times, vague. Within a given body of water, it may vary from day to day, season to season, and year to year, according to such predictable and unpredictable factors as tidal magnitude, rate of evaporation, climatological and meteorological factors, estuarine circulation patterns, and the degree of vertical salinity stratification. An exact delimitation of the upstream limits of saltwater would be a difficult task and one that is probably not necessary for the purposes of coastal management in Connecticut. However, since the primary goal of Connecticut's Coastal Area Management Program is to provide for the balanced, coordinated management of coastal resources, the coastal waters of the state must be clearly and uniformly defined as required in federal and state legislation." 
The source data for this layer (a compilation of reports and maps) varied in cartographic scale and age but features were digitized onto standard 1:24,000 scale US Geological Survey (USGS) topographic quadrangle maps. Because of this, the layer does not represent conditions at any particular point in time, nor does every waterbody have an associated salt water extent.  This data layer has been updated in 2005 to include more robust attribute information, but no further updates are planned.  
Attribute information is comprised of an AV_LEGEND attribute that identifies the feature as the salt water extent ("Salt Limit"), eight "DATASRC[1-8]" attributes that contain a boolean (0,1) value identifying whether or not that particular source was used, a NOTES attribute for additional data source descriptions, a QUADNUMBER attribute and a QUAD_NAME attribute.

Supplemental information:
For additional information, refer to the various source data provided in the Source section of this metadata.  

  1. How should this data set be cited?

    State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher), 1995, Salt Water Limit: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.

    Online links:
    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 varied scales. Except for periodic corrections, this layer includes information that is relatively static and does not change over time.

  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -73.663411
    East: -71.832624
    North: 41.541296
    South: 41.001013

  3. What does it look like?

    http://www.cteco.uconn.edu/metadata/dep/browsegraphic/saltwaterlimitfullview.gif (GIF)
    Full view of Salt Water Limit

    http://www.cteco.uconn.edu/metadata/dep/browsegraphic/saltwaterlimitdetailview.gif (GIF)
    Detail view of Salt Water Limits shown with streams in the background.

  4. Does the data set describe conditions during a particular time period?

    Calendar date: 1995
    Currentness reference:
    publication date

  5. What is the general form of this data set?

    Geospatial data presentation form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect spatial reference:
      State of Connecticut, United States of America

      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • String (453)

    2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:
      Lambert Conformal Conic
      Standard parallel: 41.200000
      Standard parallel: 41.866667
      Longitude of central meridian: -72.750000
      Latitude of projection origin: 40.833333
      False easting: 999999.999996
      False northing: 499999.999998

      Planar coordinates are encoded using coordinate pair.
      Abscissae (x-coordinates) are specified to the nearest 0.000250.
      Ordinates (y-coordinates) are specified to the nearest 0.000250.
      Planar coordinates are specified in survey feet.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical coordinate system definition:
      Altitude system definition:
      Altitude resolution: 1.000000
      Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    Salt Water Limit
    Salt Water Limit represented as line features. (Source: State of Connecticut, Department of Environmental Protection)

    OBJECTID
    Internal feature number. (Source: ESRI)
                      

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)
                      

    Coordinates defining the features.

    DATASRC1
    Data source used:  USGS field data topographic maps. (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC2
    Data source used:  "Water Resources Inventories" and "Hydrogeologic Data" (Parts 3,4,5,8,10) (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC3
    Data source used:  Map entitled "Dissolved Solids in Streams and Groundwater on North Coast of Lond Island Sound, Connecticut" (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC4
    Data source used:  Unpublished map, "Extent of Saltwater Influence" (USGS) (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC5
    Data source used:  "Tidal Wetlands of Connecticut:  Vegetation and Associated Animal Populations" (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC6
    Data source used:  Map overlays showing state-regulated tidal wetlands (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC7
    Data source used:  Other studies (sources noted on maps) (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    DATASRC8
    Data source used:  Estimation based on topography, obvious constructions, and salinity of nearby bodies of water (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    0
    Data source not used.
    1
    Data source used.

    NOTES
    Text describing data source if other than Data Sources 1 through 8.   (Source: State of Connecticut, Department of Environmental Protection)
                      

    Text value

    QUAD_NAME
    Name of USGS quadrangle in string format. (Source: State of Connecticut, Department of Environmental Protection)
                      

    Coordinates defining the features.

    ValueDefinition
    Ansonia
    Quad Name
    Branford
    Quad Name
    Bridgeport
    Quad Name
    Clinton
    Quad Name
    Deep River
    Quad Name
    Essex
    Quad Name
    Glennville
    Quad Name
    Guilford
    Quad Name
    Hamburg
    Quad Name
    Milford
    Quad Name
    Mystic
    Quad Name
    New Haven
    Quad Name
    New London
    Quad Name
    Niantic
    Quad Name
    Norwalk South
    Quad Name
    Norwich
    Quad Name
    Old Lyme
    Quad Name
    Old Mystic
    Quad Name
    Sherwood Point
    Quad Name
    Stamford
    Quad Name
    Uncasville
    Quad Name
    Watch Hill
    Quad Name
    Westport
    Quad Name
    Woodmont
    Quad Name

    SHAPE
    Feature geometry. (Source: ESRI)
                      

    Coordinates defining the features.

    QUADNUMBER
    Number of USGS quadrangle in string format. (Source: State of Connecticut, Department of Environmental Protection)
                      

    ValueDefinition
    72
    Quad Number 72
    84
    Quad Number 84
    85
    Quad Number 85
    87
    Quad Number 87
    88
    Quad Number 88
    94
    Quad Number 94
    95
    Quad Number 95
    96
    Quad Number 96
    97
    Quad Number 97
    98
    Quad Number 98
    99
    Quad Number 99
    100
    Quad Number 100
    101
    Quad Number 101
    102
    Quad Number 102
    103
    Quad Number 103
    104
    Quad Number 104
    108
    Quad Number 108
    109
    Quad Number 109
    110
    Quad Number 110
    111
    Quad Number 111
    112
    Quad Number 112
    113
    Quad Number 113
    114
    Quad Number 114
    115
    Quad Number 115

    SHAPE.len
    Entity and attribute overview:
    Includes the source data used to define each feature (DATASRC[1-8]), comments regarding the feature if alternate data sources are used (NOTES), number of the USGS quadrangle (QUADNUMBER), and name of the quadrangle (QUAD_NAME) feature is located on
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Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)


  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Kevin O'Brien
    State of Connecticut, Department of Environmental Protection
    79 Elm Street
    Hartford, Connecticut 06106-5127
    USA

    860-424-3034 (voice)
    860-424-4054 (FAX)
    dep.gisdata@ct.gov
    Hours of Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
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Why was the data set created?

Salt Water Limit is 1:24,000 scale data.  Use this layer along with layers such as Hydrography Arcs and Polygons and Town boundaries to show the limits of salt water extent in Connecticut.  Due to the source data and its compilation methods, use of this layer at scales larger than 1:24000 is not recommended.  

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How was the data set created?

  1. Where did the data come from?

    Source 1 - "The Boundary Between Freshwater and Saltwater in Connecticut" Report (source 1 of 12)

    State of Connecticut, Department of Environmental Protection, 1978, "The Boundary Between Freshwater and Saltwater in Connecticut" Report: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut USA.

    Other citation details:
    This report is the primary document explaining the procedures used in determining salt water extent in Connecticut and describing the documents, maps and other sources used in this determination.

    Type of source media: paper
    Source scale denominator: Varied
    Source contribution:
    This report was prepared by the Connecticut Department of Environmental Protection and explains in detail the methods, scientific or reference based, used to determine salt water extent.  Included in this report are descriptions of the maps and other data that formed the bases for the final determination of salt water extent.  These maps and data are further described as Sources 2 through 10 in this metadata.  

    Source 2 - USGS Field Data Topographic Maps (source 2 of 12)

    United States Geological Survey, unknown, USGS Field Data Topographic Maps: State of Connecticut, Department of Environmental Protection, .

    Online links:
    Type of source media: paper
    Source scale denominator: 24000
    Source contribution:
    Primary source referenced and explained in detail in the Source 1 report, as follows:  "These maps, available for only a portion of the coastal area, are the original maps used by the USGS to record field data for mapping dissolved solids concentrations and other water quality parameters in surface water.  They show specific conductance measurements for various sites under conditions of high tide and low streamflow (80% or greater duration).  For use in this study, the specific conductance measurements have been converted to dissolved solids using 0.68 as a multiplier.  While the conversion factor (multiplier) varies between drainage basins and within each basin, 0.68 represents an average conversion figure and is adequate for use in the areas for which the above data are available."

    Source 3 - Map of Dissolved Solids in Streams and Groundwater on Northern Coast of Long Island Sound, Connecticut (source 3 of 12)

    Robert L. Melvin and F.P. Haeni for the New England River Basin Commission, 1973, Dissolved Solids in Streams and Groundwater on Northern Coast of Long Island Sound, Connecticut: New England River Basin Commission, .

    Type of source media: paper
    Source scale denominator: 125000
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "[This map] is based on data compiled by the USGS for its inventories of Connecticut’s drainage basins ...and uses symbols to denote dissolved solids concentrations in streams at low flow.  The following categories are used (in milligrams per liter or parts per million): 0-100, 100-300, 361-500, more than 500.

    Source 4 - Map of Extent of Saltwater Influence (source 4 of 12)

    United State Geological Survey, Unpublished Material, Extent of Saltwater Influence.

    Type of source media: paper
    Source scale denominator: 125000
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "This unpublished map uses hand-drawn lines to demarcate the boundary between saltwater and freshwater.  The extent of saltwater influence on this map corresponds closely to a concentration of 0.5ppt dissolved solids.  USGS officials indicate that this map is essentially an unrefined version of Dissolved Solids in Streams and Groundwater.  However, this map has been included as a source of information because it is more legible than Dissolved Solids in Streams and Groundwater."

    Source 5 - "Hydrogeologic Data (for the coastal drainage basins)" Report (source 5 of 12)

    United States Geological Survey, State of Connecticut, Department of Environmental Protection, varied, "Hydrogeologic Data (for the coastal drainage basins)" Report.

    Type of source media: paper
    Source scale denominator: not applicable
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "The content of these reports varies from basin to basin with some giving almost exclusive attention to groundwater, and others giving a little more information on surface water.  Most reports present streamflow data, records of selected wells, and water quality data for both groundwater and surface water.  The latter includes concentrations of iron, chloride, dissolved solids and turbidity among others.  These reports were of limited use to this study because the monitoring sites, especially for surface water, are fairly spread out and few are located in the vicinity of the freshwater-saltwater boundary."

    Source 6 - "Water Resources Inventories" Report (source 6 of 12)

    United States Geological Survey, State of Connecticut, Department of Environmental Protection, varied, "Water Resources Inventories" Report.

    Type of source media: paper
    Source scale denominator: not applicable
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "Of the five coastal drainage basins, published inventories exist for the Lower Thames and Southeastern Coastal River Basins (Part 3), Southwestern Coastal River Basin (Part 4), and Lower Housatonic River Basin (Part 5).  The inventories for the Quinnipiac River Basin (Part 8) and the Lower Connecticut River Basin (Part 10) are being prepared.  The Water Resources Inventories function as interpretative reports for the data presented in Hydrogeologic Data.  They contain summaries of streamflow characteristics and water quality in addition to providing tables, graphs, and maps summarizing various types of data.  The maps depicting dissolved solids concentrations along with the extent of saltwater influence were particularly useful to this study."

    Source 7 - "Tidal Wetlands of Connecticut: Vegetation and Associated Animal Populations" Report (source 7 of 12)

    William A. Niering and R. Scott Warren (Editors), Students of Connecticut College, New London, Connecticut, 1974, "Tidal Wetlands of Connecticut: Vegetation and Associated Animal Populations" Report: Connecticut College, New London, Connecticut USA.

    Type of source media: paper
    Source scale denominator: not applicable
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "This study, conducted by Drs. Niering and Warren, their colleagues, and students at Connecticut College in New London, analyzed the vegetation of 127 marsh areas, representing 12,174 acres of the state’s 15,586 acres.  Most marshes exhibit a bay to upland sequence of vegetation belts recognized by Miller and Egler (1950) including Spartina alterniflora lower slope (intertidal zone), Spartina patens upper slope (high marsh), Juncus gerardi (lower border), and Panicum virgatum (upper border).  Within this pattern, a mosaic of various subtypes is usually apparent.  Niering’s study describes the abundance of various species of flora and fauna in addition to major environmental impacts (dredging, ditching, tidal gates, construction, etc.) for each marsh area surveyed.  Although the study areas are not mapped, many are described in sufficient detail so that their boundaries may easily be determined using USGS 1:24,000 scale topographic maps in conjunction with maps depicting state-regulated tidal wetlands.  All of the areas surveyed are dominated by salt-dependent vegetation.  In a few cases these wetlands extend into areas of freshwater influence and this is noted by the authors.  Although no salinity measurements were taken, the existence of certain types of vegetation can be used as an indication that the salt content of the surrounding water exceeds 0.5ppt.  The information provided in Niering’s study has been used both as a secondary source to verify USGS data and as a primary source for areas where no other data were available.  The salt marsh descriptions were especially valuable in determining the extent of saltwater influence in small streams and creeks."

    Source 8 - Map Overlays of State-Regulated Tidal Wetlands (source 8 of 12)

    State of Connecticut, Department of Environmental Protection, Unpublished Material, Map Overlays of State-Regulated Tidal Wetlands.

    Type of source media: paper
    Source scale denominator: 24000
    Source contribution:
    Additional source referenced and explained in detail in the Source 1 report, as follows:  "These overlays, showing the boundaries of state-regulated tidal wetlands, were used as a secondary source to locate the areas described by Niering’s study (See III c), to resolve conflicts between other data sources, and in a few cases to approximate the extent of saltwater influence where no other data were available."

    Source 9 - Other Miscellaneous Sources (source 9 of 12)

    Unknown, Other Sources.

    Type of source media: varied
    Source scale denominator: not applicable
    Source contribution:
    Additional sources noted on the published salt water extent paper maps were used.

    Source 10 - Topography, Obvious Constrictions, and Salinity of Nearby Bodies of Water. (source 10 of 12)

    State of Connecticut, Department of Environmental Protection, United States Geological Survey, Unpublished Material, Topography, Obvious Constrictions, and Salinity of Nearby Bodies of Water.

    Type of source media: paper
    Source scale denominator: 24000
    Source contribution:
    This source consists of topography, obvious constrictions and salinitiy of nearby bodies of water.  An explanation is provided below (taken from Source 1 report, p. 12):  
    "Topography:  For the watercourses for which there are adequate data, the extent of saltwater influence rarely extends farther upstream than the 10-foot contour as it appears on USGS topographic maps.  
    Obvious constrictions:  These constrictions tend to reduce or block the upstream flow of saltwater resulting from the incoming tide. They may also influence the downstream flow of freshwater but their greatest effect is generally on saltwater circulation..  Man-made constrictions include tidal gates, dams, bridge foundations and causeways. Natural constrictions include land patterns of the adjacent shorelands and the addition of freshwater from tributaries.  
    Examination of Surrounding Bodies of Water:  If larger bodies of water located near the stream in question are saline and no major sources of freshwater are located directly upstream from the area under examination, the stream is considered to be saline up to a reasonable point determined by topography and the existence of constrictions. The method of estimation described above ... was used only for a few small streams and creeks where its use was dictated by a lack of any other applicable data."

    Source 11 - Blueline Copies of Coastal Area Topographic Maps (source 11 of 12)

    State of Connecticut, Department of Environmental Protection, 1995, Blueline Copies of Coastal Area Topographic Maps: State of Connecticut, Department of Environmental Protection, .

    Online links:
    Type of source media: paper
    Source scale denominator: 24000
    Source contribution:
    Salt water extent areas were drawn onto these maps based on data provided in the preceding sources.

    Source 12 - Salt Water Limit Shapefile (source 12 of 12)

    State of Connecticut, Department of Environmental Protection, Salt Water Limit Shapefile.

    Online links:
    Type of source media: disc
    Source scale denominator: 24000
    Source contribution:
    This data source refers to all features combined in one statewide layer. Note that although this is a statewide layer, not every waterbody will have an associated salt water extent.  Since initial publication in 1995, subsequent publications or editions of the layer were generated by the State of Connecticut in order to convert from NAD 27 to NAD 83 geographic coordinate system.  Consequently, different copies of this layer were produced, representing various steps in the data layer development and maintenance process (metadata lineage). Changes made to the entire layer are reflected in metadata process steps where this particular data source is cited as both the Source Used and the Source Produced.

  2. What changes have been made?

    Date: 1995 (change 1 of 3)
    Creation of Topographic Maps Showing Salt Water Limits - Data from the two small scale maps ("Extent of Saltwater Influence" [Source 4]  and "Dissolved Solids in Streams and Groundwater [Source 3]") and the maps containing the original USGS field data [Source 2] were plotted on blueline copies of coastal area topographic maps (1:24,000).  Areas lacking adequate data and areas showing conflicts between data sources were noted. Subsequently, each map quadrangle was examined using the remaining sources of data in addition to those already plotted in order to mark the boundary as close as possible to the actual extent of saltwater influence as defined in the Source 1 report.

    Person responsible for change:
    Ron Rozsa
    State of Connecticut, Department of Environmental Protection
    79 Elm Street
    Hartford, Connecticut 06106
    USA

    860-424-3034 (voice)
    860-424-4054 (FAX)

    Data sources used in this process:
    • Source 1 - The Boundary Between Freshwater and Saltwater in Connecticut
    • Source 2 - USGS Field Data Topographic Maps
    • Source 3 - Dissolved Solids in Streams and Groundwater on Northern Coast of Long Island Sound, Connecticut
    • Source 4 - Extent of Saltwater Influence
    • Source 5 - Hydrogeologic Data (for the coastal drainage basins)
    • Source 6 - Water Resources Inventories
    • Source 7 - Tidal Wetlands of Connecticut: Vegetation and Associated Animal Populations
    • Source 8 - Overlays of State-Regulated Tidal Wetlands
    • Source 9 - Other Miscellaneous Sources
    • Source 10 - Topography, Obvious Constrictions, and Salinity of Nearby Bodies of Water

    Data sources produced in this process:
    • Source 11 - Blueline Copies of Coastal Area Topographic Maps

    Date: 1995 (change 2 of 3)
    Feature digitizing and attribution (digitizing tablet method) - Using ESRI ArcInfo software, features were digitized by registering the source map (Source 11) to the digitizing tablet and using the crosshairs of the digitizer's mouse to manually capture the geometry (location) of features drafted on the map. The corners of the USGS 7.5 minute topographic quadrangle maps are used as registration points and are depicted on the source map. The source map was registered to the digitizing tablet by digitizing (entering) the locations of four quadrangle corner registration points shown on the map.  Individual features were manually digitized off the source map and assigned a "0" or "1" value in the appropriate DATASRC attribute field to denote the source used for that particular feature.  Because there were eight original sources as described in the "Boundary Between Saltwater and Freshwater in Connecticut" (Source 1 in this metadata), eight DATASRC attribute fields were created and named DATASRC1 through DATASRC8.  Some features used more than one source, whiles others did not use any of the eight sources and instead were coded as zero's ("0") in each DATASRC attribute field.  In those cases, an explanation of the alternate source used for that feature was entered as text into the NOTES attribute field.  The quadrangle number and the quadrangle name for each feature were also entered into the QUADNUMBER and QUAD_NAME attribute fields, respectively.  Feature location and attribute accuracy was visually checked and inspected by symbolizing and labeling features according to attribute value on the computer screen and on the hard copy toopgraphic maps.

    Person responsible for change:
    State of Connecticut, Department of Environmental Protection

    Data sources used in this process:
    • Source 11 - Blueline Copies of Coastal Area Topographic Maps

    Data sources produced in this process:
    • Source 12 - Salt Water Limit Shapefile

    Date: 1999 (change 3 of 3)
    Datum conversion - Using DEPGIS Connecticut NADCON Extension for ESRI ArcView 3 software, this layer was converted from the Connecticut State Plane Coordinate System of 1927 (NAD27) to the Connecticut State Plane Coordinate System of 1983 (NAD83). The NADCON (North American Datum CONversion) data transformation was used.

    Person responsible for change:
    State of Connecticut, Department of Environmental Protection

    Data sources used in this process:
    • Source 12 - Salt Water Limit Shapefile

    Data sources produced in this process:
    • Source 12 - Salt Water Limit Shapefile

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How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    The Salt Water Limit layer retains the feature types and information identified by the State of Connecticut, Department of Environmental Protection and obtained from various sources identified in the Source section of this metadata.  All attributes have valid values. Values are within defined domains.  

  2. How accurate are the geographic locations?

    The horizontal positional accuracy of this data is unknown.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    The completeness of the data reflects the feature content of the data sources.  The Salt Water Limit layer is complete in the sense that it accurately reflects the contents of the source information available at the time the State of Connecticut, Department of Environmental Protection created the layer. This data is not updated.

  5. How consistent are the relationships among the observations, including topology?

    Line features conform to the following topological rules. Lines are single part. There are no duplicate lines. Lines do not self overlap.  Lines may overlap other lines.  No automated procedures or tests were performed to guarantee desired topology other than visual inspection.

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How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access constraints: None. The data is in the public domain and may be redistributed.
Use constraints:
No restrictions or legal prerequisites for using the data.  Because the scale of the source data is varied, use caution when displaying this data.  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.

Distributor 1 of 1

  1. Who distributes the data set?

    State of Connecticut, Department of Enviromental Protection
    79 Elm Street
    Hartford, Connecticut 06106-5127
    USA

    860-424-3540 (voice)
    860-424-4058 (FAX)
    dep.gisdata@ct.gov
    Hours of Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time

  2. What's the catalog number I need to order this data set?

    Salt Water Limit

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

    • Availability in digital form:


    • Data format:
      in format Shapefile, Feature Class (version ArcGIS)
      Network links:http://www.ct.gov/deep

    • Cost to order the data: An online copy of the data may be accessed without charge.


  5. Is there some other way to get the data?

    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.

  6. What hardware or software do I need in order to use the data set?

    Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.

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Who wrote the metadata?

Dates:
Last modified: 20120119

Metadata author:
Jacqueline Mickiewicz
State of Connecticut, Department of Environmental Protection
79 Elm Street
Hartford, Connecticut 06106-5127
USA

860-424-3540 (voice)
860-424-4058 (FAX)
dep.gisdata@ct.gov
Hours of Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata(FGDC-STD-001-1998)

Metadata extensions used:
  • http://www.esri.com/metadata/esriprof80.html

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