Farmland Soils interpretation for the Soil Survey Geographic (SSURGO) database for the State of Connecticut

+ Resource Description

Citation

Information used to reference the data.

Title: Farmland Soils interpretation for the Soil Survey Geographic (SSURGO) database for the State of Connecticut

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Worth, Texas

Publication date: 20070322

Data type: vector digital data

Data location: http://SoilDataMart.nrcs.usda.gov/

Other citation details:

ct600

Description

A characterization of the data, including its intended use and limitations.

Abstract:

Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. Includes Locally Important Farmland Soils for the towns of Ashford, Canterbury, Chaplin, Eastford, Lebanon, Milford, New Milford, and Norfolk. This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information.

This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

Purpose:

Farmland classification identifies the location and extent of the most suitable land for producing food, feed, fiber, forage, and oilseed crops. SSURGO depicts information about the kinds and distribution of soils on the landscape. The soil map and data used in the SSURGO product were prepared by soil scientists as part of the National Cooperative Soil Survey.

Supplemental information:

Digital versions of hydrography, cultural features, and other associated layers that are not part of the SSURGO data set may be available from the primary organization listed in the Point of Contact.

Language of dataset: en

Point Of Contact

Contact information for the individual or organization that is knowledgeable about the data.

Organization: U.S. Department of Agriculture, Natural Resources Conservation Service

Position: State Soil Scientist

Phone: 860-871-4047

Fax: 860-871-4054

Telecommunications Device or Teletypewriter (TDD/TTY) phone: (202) 720-2600

Email: kip.kolesinskas@ct.usda.gov

Address type: mailing address

Address:

USDA - Natural Resources Conservation Service

Address:

Connecticut State Office

Address:

344 Merrow Road, Suite A

City: Tolland

State or Province: Connecticut

Postal code: 06084-3917

Country: USA

Data Type

How the data are represented, formatted and maintained by the data producing organization.

File or table name: depgis.DEP.SOILS_FARMLAND_POLY

Data type: vector digital data

Data format: SDE Feature Class

Native dataset environment: These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.

Time Period of Data

Time period(s) for which the data corresponds to the currentness reference.

Beginning date: 20000602

Ending date: 20070322

Currentness reference:

publication date

Status

The state of and maintenance information for the data.

Data status: Complete

Update frequency: As needed

Key Words

Words or phrases that summarize certain aspects of the data.

Theme:

Keywords: soil survey, soils, Soil Survey Geographic, SSURGO

Keyword thesaurus: None

Theme:

Keywords: geoscientificInformation

Keyword thesaurus: ISO 19115 Topic Category

Place:

Keywords: Connecticut, Fairfield County, Hartford County, Litchfield County, Middlesex County, New Haven County, New London County, Tolland County, Windham County, ALL WATER Quadrangle, ALL WATER Quadrangle, ALL WATER Quadrangle, ALL WATER Quadrangle, ALL WATER Quadrangle, ALL WATER Quadrangle, ALL WATER Quadrangle, Amenia NE Quadrangle, Amenia SE Quadrangle, Ansonia NE Quadrangle, Ansonia NW Quadrangle, Ansonia SE Quadrangle, Ansonia SW Quadrangle, Ashaway NE Quadrangle, Ashaway NW Quadrangle, Ashaway SE Quadrangle, Ashaway SW Quadrangle, Ashley Falls SE Quadrangle, Ashley Falls SW Quadrangle, Avon NE Quadrangle, Avon NW Quadrangle, Avon SE Quadrangle, Avon SW Quadrangle, Bash Bish Falls SE Quadrangle, Bash Bish Falls SW Quadrangle, Bayville NW Quadrangle, Bethel NE Quadrangle, Bethel NW Quadrangle, Bethel SE Quadrangle, Bethel SW Quadrangle, Botsford NE Quadrangle, Botsford NW Quadrangle, Botsford SE Quadrangle, Botsford SW Quadrangle, Branford NE Quadrangle, Branford NW Quadrangle, Branford SE Quadrangle, Branford SE OE S Quadrangle, Branford SW Quadrangle, Branford SW OE S Quadrangle, Brewster NE Quadrangle, Brewster SE Quadrangle, Bridgeport NE Quadrangle, Bridgeport NW Quadrangle, Bridgeport SE Quadrangle, Bridgeport SW Quadrangle, Bristol NE Quadrangle, Bristol NW Quadrangle, Bristol SE Quadrangle, Bristol SW Quadrangle, Broad Brook NE Quadrangle, Broad Brook NW Quadrangle, Broad Brook SE Quadrangle, Broad Brook SW Quadrangle, Clinton NE Quadrangle, Clinton NW Quadrangle, Clinton SE Quadrangle, Clinton SE OE S Quadrangle, Clinton SW Quadrangle, Colchester NE Quadrangle, Colchester NW Quadrangle, Colchester SE Quadrangle, Colchester SW Quadrangle, Collinsville NE Quadrangle, Collinsville NW Quadrangle, Collinsville SE Quadrangle, Collinsville SW Quadrangle, Columbia NE Quadrangle, Columbia NW Quadrangle, Columbia SE Quadrangle, Columbia SW Quadrangle, Cornwall NE Quadrangle, Cornwall NW Quadrangle, Cornwall SE Quadrangle, Cornwall SW Quadrangle, Coventry NE Quadrangle, Coventry NW Quadrangle, Coventry SE Quadrangle, Coventry SW Quadrangle, Danbury NE Quadrangle, Danbury NW Quadrangle, Danbury SE Quadrangle, Danbury SW Quadrangle, Danielson NE Quadrangle, Danielson NW Quadrangle, Danielson SE Quadrangle, Danielson SW Quadrangle, Deep River NE Quadrangle, Deep River NW Quadrangle, Deep River SE Quadrangle, Deep River SW Quadrangle, Dover Plains NE Quadrangle, Dover Plains SE Quadrangle, Durham NE Quadrangle, Durham NW Quadrangle, Durham SE Quadrangle, Durham SW Quadrangle, East Killingly NE Quadrangle, East Killingly NW Quadrangle, East Killingly SE Quadrangle, East Killingly SW Quadrangle, Eastford NE Quadrangle, Eastford NW Quadrangle, Eastford SE Quadrangle, Eastford SW Quadrangle, Ellington NE Quadrangle, Ellington NW Quadrangle, Ellington SE Quadrangle, Ellington SW Quadrangle, Ellsworth NE Quadrangle, Ellsworth NW Quadrangle, Ellsworth SE Quadrangle, Ellsworth SW Quadrangle, Essex NE Quadrangle, Essex NW Quadrangle, Essex SE Quadrangle, Essex SW Quadrangle, Fitchville NE Quadrangle, Fitchville NW Quadrangle, Fitchville SE Quadrangle, Fitchville SW Quadrangle, Glastonbury NE Quadrangle, Glastonbury NW Quadrangle, Glastonbury SE Quadrangle, Glastonbury SW Quadrangle, Glenville NE Quadrangle, Glenville NW Quadrangle, Glenville SE Quadrangle, Glenville SW Quadrangle, Guilford NE Quadrangle, Guilford NW Quadrangle, Guilford SE Quadrangle, Guilford SE OE S Quadrangle, Guilford SW Quadrangle, Guilford SW OE S Quadrangle, Haddam NE Quadrangle, Haddam NW Quadrangle, Haddam SE Quadrangle, Haddam SW Quadrangle, Hamburg NE Quadrangle, Hamburg NW Quadrangle, Hamburg SE Quadrangle, Hamburg SW Quadrangle, Hampden SE Quadrangle, Hampden SW Quadrangle, Hampton NE Quadrangle, Hampton NW Quadrangle, Hampton SE Quadrangle, Hampton SW Quadrangle, Hartford North NE Quadrangle, Hartford North NW Quadrangle, Hartford North SE Quadrangle, Hartford North SW Quadrangle, Hartford South NE Quadrangle, Hartford South NW Quadrangle, Hartford South SE Quadrangle, Hartford South SW Quadrangle, Jewett City NE Quadrangle, Jewett City NW Quadrangle, Jewett City SE Quadrangle, Jewett City SW Quadrangle, Kent NE Quadrangle, Kent NW Quadrangle, Kent SE Quadrangle, Kent SW Quadrangle, Litchfield NE Quadrangle, Litchfield NW Quadrangle, Litchfield SE Quadrangle, Litchfield SW Quadrangle, Long Hill NE Quadrangle, Long Hill NW Quadrangle, Long Hill SE Quadrangle, Long Hill SW Quadrangle, Mamaroneck NE Quadrangle, Manchester NE Quadrangle, Manchester NW Quadrangle, Manchester SE Quadrangle, Manchester SW Quadrangle, Marlborough NE Quadrangle, Marlborough NW Quadrangle, Marlborough SE Quadrangle, Marlborough SW Quadrangle, Meriden NE Quadrangle, Meriden NW Quadrangle, Meriden SE Quadrangle, Meriden SW Quadrangle, Middle Haddam NE Quadrangle, Middle Haddam NW Quadrangle, Middle Haddam SE Quadrangle, Middle Haddam SW Quadrangle, Middletown NE Quadrangle, Middletown NW Quadrangle, Middletown SE Quadrangle, Middletown SW Quadrangle, Milford NE Quadrangle, Milford NW Quadrangle, Milford SE Quadrangle, Milford SW Quadrangle, Millerton SE Quadrangle, Monson SE Quadrangle, Monson SW Quadrangle, Montville NE Quadrangle, Montville NW Quadrangle, Montville SE Quadrangle, Montville SW Quadrangle, Moodus NE Quadrangle, Moodus NW Quadrangle, Moodus SE Quadrangle, Moodus SW Quadrangle, Mount Carmel NE Quadrangle, Mount Carmel NW Quadrangle, Mount Carmel SE Quadrangle, Mount Carmel SW Quadrangle, Mount Kisco SE Quadrangle, Mystic NE Quadrangle, Mystic NW Quadrangle, Mystic SE Quadrangle, Mystic SW Quadrangle, Naugatuck NE Quadrangle, Naugatuck NW Quadrangle, Naugatuck SE Quadrangle, Naugatuck SW Quadrangle, New Britain NE Quadrangle, New Britain NW Quadrangle, New Britain SE Quadrangle, New Britain SW Quadrangle, New Hartford NE Quadrangle, New Hartford NW Quadrangle, New Hartford SE Quadrangle, New Hartford SW Quadrangle, New Haven NE Quadrangle, New Haven NW Quadrangle, New Haven SE Quadrangle, New Haven SW Quadrangle, New London NE Quadrangle, New London NW Quadrangle, New London SE Quadrangle, New London SW Quadrangle, New Milford NE Quadrangle, New Milford NW Quadrangle, New Milford SE Quadrangle, New Milford SW Quadrangle, New Preston NE Quadrangle, New Preston NW Quadrangle, New Preston SE Quadrangle, New Preston SW Quadrangle, Newtown NE Quadrangle, Newtown NW Quadrangle, Newtown SE Quadrangle, Newtown SW Quadrangle, Niantic NE Quadrangle, Niantic NW Quadrangle, Niantic SE Quadrangle, Niantic SW Quadrangle, Norfolk NE Quadrangle, Norfolk NW Quadrangle, Norfolk SE Quadrangle, Norfolk SW Quadrangle, Norwalk North NE Quadrangle, Norwalk North NW Quadrangle, Norwalk North SE Quadrangle, Norwalk North SW Quadrangle, Norwalk South NE Quadrangle, Norwalk South NW Quadrangle, Norwalk South SE Quadrangle, Norwalk South SW Quadrangle, Norwich NE Quadrangle, Norwich NW Quadrangle, Norwich SE Quadrangle, Norwich SW Quadrangle, Old Lyme NE Quadrangle, Old Lyme NW Quadrangle, Old Lyme SE Quadrangle, Old Lyme SW Quadrangle, Old Mystic NE Quadrangle, Old Mystic NW Quadrangle, Old Mystic SE Quadrangle, Old Mystic SW Quadrangle, Oneco NE Quadrangle, Oneco NW Quadrangle, Oneco SE Quadrangle, Oneco SW Quadrangle, Oxford SE Quadrangle, Oxford SW Quadrangle, Pawling NE Quadrangle, Pawling SE Quadrangle, Peach Lake NE Quadrangle, Peach Lake SE Quadrangle, Plainfield NE Quadrangle, Plainfield NW Quadrangle, Plainfield SE Quadrangle, Plainfield SW Quadrangle, Pound Ridge NE Quadrangle, Pound Ridge SE Quadrangle, Pound Ridge SW Quadrangle, Putnam NE Quadrangle, Putnam NW Quadrangle, Putnam SE Quadrangle, Putnam SW Quadrangle, Rockville NE Quadrangle, Rockville NW Quadrangle, Rockville SE Quadrangle, Rockville SW Quadrangle, Roxbury NE Quadrangle, Roxbury NW Quadrangle, Roxbury SE Quadrangle, Roxbury SW Quadrangle, Scotland NE Quadrangle, Scotland NW Quadrangle, Scotland SE Quadrangle, Scotland SW Quadrangle, Sharon NE Quadrangle, Sharon NW Quadrangle, Sharon SE Quadrangle, Sharon SW Quadrangle, Sherwood Point NE Quadrangle, Sherwood Point NW Quadrangle, Sherwood Point SE Quadrangle, Sherwood Point SW Quadrangle, South Canaan NE Quadrangle, South Canaan NW Quadrangle, South Canaan SE Quadrangle, South Canaan SW Quadrangle, South Sandisfield SE Quadrangle, South Sandisfield SW Quadrangle, Southbridge SE Quadrangle, Southbridge SW Quadrangle, Southbury NE Quadrangle, Southbury NW Quadrangle, Southbury SE Quadrangle, Southbury SW Quadrangle, Southington NE Quadrangle, Southington NW Quadrangle, Southington SE Quadrangle, Southington SW Quadrangle, Southwick SE Quadrangle, Southwick SW Quadrangle, Spring Hill NE Quadrangle, Spring Hill NW Quadrangle, Spring Hill SE Quadrangle, Spring Hill SW Quadrangle, Springfield South SE Quadrangle, Springfield South SW Quadrangle, Stafford Springs NE Quadrangle, Stafford Springs NW Quadrangle, Stafford Springs SE Quadrangle, Stafford Springs SW Quadrangle, Stamford NE Quadrangle, Stamford NW Quadrangle, Stamford SE Quadrangle, Stamford SW Quadrangle, Tariffville NE Quadrangle, Tariffville NW Quadrangle, Tariffville SE Quadrangle, Tariffville SW Quadrangle, Thomaston NE Quadrangle, Thomaston NW Quadrangle, Thomaston SE Quadrangle, Thomaston SW Quadrangle, Thompson NE Quadrangle, Thompson NW Quadrangle, Thompson SE Quadrangle, Thompson SW Quadrangle, Tolland Center SE Quadrangle, Tolland Center SW Quadrangle, Torrington NE Quadrangle, Torrington NW Quadrangle, Torrington SE Quadrangle, Torrington SW Quadrangle, Uncasville NE Quadrangle, Uncasville NW Quadrangle, Uncasville SE Quadrangle, Uncasville SW Quadrangle, Voluntown NE Quadrangle, Voluntown NW Quadrangle, Voluntown SE Quadrangle, Voluntown SW Quadrangle, Wales SE Quadrangle, Wales SW Quadrangle, Wallingford NE Quadrangle, Wallingford NW Quadrangle, Wallingford SE Quadrangle, Wallingford SW Quadrangle, Watch Hill NW Quadrangle, Waterbury NE Quadrangle, Waterbury NW Quadrangle, Waterbury SE Quadrangle, Waterbury SW Quadrangle, Webster SE Quadrangle, Webster SW Quadrangle, West Granville SE Quadrangle, West Granville SW Quadrangle, West Springfield SE Quadrangle, West Springfield SW Quadrangle, West Torrington NE Quadrangle, West Torrington NW Quadrangle, West Torrington SE Quadrangle, West Torrington SW Quadrangle, Westford NE Quadrangle, Westford NW Quadrangle, Westford SE Quadrangle, Westford SW Quadrangle, Westport NE Quadrangle, Westport NW Quadrangle, Westport SE Quadrangle, Westport SW Quadrangle, Willimantic NE Quadrangle, Willimantic NW Quadrangle, Willimantic SE Quadrangle, Willimantic SW Quadrangle, Windsor Locks NE Quadrangle, Windsor Locks NW Quadrangle, Windsor Locks SE Quadrangle, Windsor Locks SW Quadrangle, Winsted NE Quadrangle, Winsted NW Quadrangle, Winsted SE Quadrangle, Winsted SW Quadrangle, Woodbury NE Quadrangle, Woodbury NW Quadrangle, Woodbury SE Quadrangle, Woodbury SW Quadrangle, Woodmont NE Quadrangle, Woodmont NW Quadrangle, Woodmont SE Quadrangle, Woodmont SW Quadrangle

Keyword thesaurus: USGS Geographic Names Information System (GNIS)

Place:

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.

Place:

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.

Data Access Constraints

Restrictions and legal prerequisites for accessing or using the data after access is granted.

Access constraints:

None

Use constraints:

The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data.

This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs.

Photographic or digital enlargement of these maps to scales greater than at which they were originally mapped can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.

+ Graphic Example

Browse Graphic

Graphic illustration of the data.

Browse graphic 1

Open - Full view of Farmland Soils

Browse graphic 2

Open - Detail view of Farmland Soils map unit polygon boundaries that includes prime, statewide important, and locally important farmland soils. Locally important farmland soils have been designated by the following Connecticut towns: Ashford, Chaplin, Eastford, Lebanon, and New Milford. Other towns may designate locally important farmland soils in the future. Note, farmland soil map unit boundaries will follow a town boundary in situations where a town that has designated locally important farmland soils is adjacent to a town that has not designated locally important farmland soils. For example, at the time this image was made, locally important farmland soils were not mapped for the Town of Hampton. Consequently, some of the boundaries of locally important farmland soils in the adjacent towns of Chaplin and Eastford follow the straight line of the Hampton town boundary.

Browse graphic 3

Open - Detail view of Farmland Soils map unit polygon boundaries that includes prime, statewide important, and locally important farmland soils shown with town boundaries in green. Locally important farmland soils have been designated by the following towns: Ashford, Chaplin, Eastford, Lebanon, and New Milford. Other towns may designate locally important farmland soils in the future. Note, farmland soil map unit boundaries will follow a town boundary in situations where a town has designated locally important farmland soils adjacent to a town that has not designated locally important farmland soils. For example, at the time this image was made, locally important farmland soils were not designated for the Town of Hampton. Consequently, some of the boundaries of locally important farmland soils in the adjacent towns of Chaplin and Eastford follow the straight line of the Hampton town boundary.

Browse graphic 4

Open - Detail view of Farmland Soils symbolizing Prime, Statewide Important, and Locally Important Farmland Soils

+ Spatial Reference Information

Horizontal Coordinate System

Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.

Projected coordinate system:

Name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet

Map units: survey feet

Geographic coordinate system:

Name: GCS North American 1983

Coordinate System Details

Map projection

Map projection name: 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 Coordinate Information

Planar coordinate encoding method: coordinate pair

Coordinate representation:

Abscissa resolution: 0.000125

Ordinate resolution: 0.000125

Planar distance units: survey feet

Geodetic model

Horizontal datum name: North American Datum of 1983

Ellipsoid name: Geodetic Reference System 80

Semi-major axis: 6378137.000000

Denominator of flattening ratio: 298.257222

Vertical Coordinate System

Reference system from which vertical distances (altitudes or depths) are measured.

Altitude system definition:

Altitude resolution: 1.000000

Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

Spatial Domain

The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.

Bounding Coordinates

In Projected or local coordinates

NAD 1983 StatePlane Connecticut FIPS 0600 Feet

Boundary	Coordinate
Left	730539.099000 (survey feet)
Right	1263096.478000 (survey feet)
Top	944228.808000 (survey feet)
Bottom	547370.081000 (survey feet)

In Unprojected coordinates (geographic)

GCS North American 1983

Boundary	Coordinate
West	-73.742071 (longitude)
East	-71.781359 (longitude)
North	42.052474 (latitude)
South	40.959168 (latitude)

+ Data Structure and Attribute Information

Overview

Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.

Entity and attribute overview:

Map Unit Delineations are closed polygons that may be dominated by a single soil or miscellaneous area component plus allowable similar or dissimilar soils, or they can be geographic mixtures of groups of soils or soils and miscellaneous areas.

The map unit symbol uniquely identifies each closed map unit delineation. Each symbol corresponds to a map unit name. The map unit key is used to link to information in the National Soil Information System tables.

Map Unit Delineations are described by the National Soil Information System database. This attribute database gives the proportionate extent of the component soils and the properties for each soil. The database contains both estimated and measured data on the physical and chemical soil properties and soil interpretations for engineering, water management, recreation, agronomic, woodland, range, and wildlife uses of the soil.

The National Soil Information System database contains static metadata. It documents the data structure and includes such information as what tables, columns, indexes, and relationships are defined as well as a variety of attributes of each of these database objects. Attributes include table and column descriptions and detailed domain information.

The National Soil Information System database also contains a distribution metadata. It records the criteria used for selecting map units and components for inclusion in the set of distributed data.

Special features are described in the feature table. It includes an area symbol, feature label, feature name, and feature description for each special and ad hoc feature in the survey area.

Entity and attribute detailed citation:

Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys.
			
Agricultural Handbook 436, 1999, USDA, SCS.

Keys to Soil Taxonomy (current issue), USDA, SCS.

National Soil Survey Handbook, Title 430-VI, part 647 (current
issue), USDA, NRCS.

Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.

Direct spatial reference method: Vector

Attributes of Farmland Soils

Detailed descriptions of entity type, attributes, and attribute values for the data.

Name: depgis.DEP.SOILS_FARMLAND_POLY

Type of object: Feature Class

Geometry type: Polygon

Number of records: 236557

Source:

U.S. Department of Agriculture, Natural Resources Conservation Service

Attributes

OBJECTID

Definition:

Internal feature number.

Alias: OBJECTID Type: OID Width: 4 Precision: 10 Scale: 0

Attribute values: Sequential unique whole numbers that are automatically generated.

Attribute definition source:

ESRI

SHAPE

Definition:

Feature geometry.

Alias: SHAPE Type: Geometry Width: 4 Precision: 0 Scale: 0

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

AREASYMBOL

Definition:

Area Symbol - A symbol that uniquely identifies a single occurrence of a particualr type of area (e.g. Lancaster Co., Nebraska is NE109).

Alias: AREASYMBOL Type: String Width: 20 Precision: 0 Scale: 0Output width: 20

Attribute values: Text value

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

SPATIALVER

Definition:

Spatial Version - A sequential integer number used to denote the serial version of the spatial data for a soil survey area.

Alias: SPATIALVER Type: Double Width: 8 Precision: 16 Scale: 5Output width: 10

Attribute values: Numeric value

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

MUKEY

Definition:

Mapunit Key - A non-connatative string of characters used to uniquely identify a record in the Mapunit table.

Alias: MUKEY Type: String Width: 30 Precision: 0 Scale: 0Output width: 30

Attribute values: Text value

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

MUSYM

Definition:

Mapunit Symbol - The symbol used to uniquely identify the soil map unit in the soil survey.

Alias: MUSYM Type: String Width: 8 Precision: 0 Scale: 0Output width: 6

Attribute values: Text value

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

FRMLNDCLS

Definition:

The symbol used to identify the farmland soil map unit interpretation in the soil survey.

Alias: FRMLNDCLS Type: String Width: 35 Precision: 0 Scale: 0

Attribute domain values

Value	Definition
Prime Farmland Soils	Prime Farmland Soils are those soils that have the best combination of physical and chemical characteristics for producing food, feed, forage, fiber, and oil seed crops, and are also available for these uses (the land could be cropland, pastureland, range-land, forestland, or other land, but not urban built-up land or water). It has the soil quality, growing season and moisture supply needed to economically produce sustained high yields or crops when treated and managed, including water management, according to acceptable farming practices.
Prime Farmland Soils	Definition Source: U. S. Department of Agriculture, Natural Resources Conservation Service
Statewide Important Farmland Soils	Statewide Important Farmland Soils are those soils that fail to meet one or more of the requirements of prime farmland, but are important for the production of food, feed, fiber, or forage crops. They include those soils that are nearly prime farmland and that economically produce high yields of crops when treated and managed according to acceptable farming methods.
Statewide Important Farmland Soils	Definition Source: U. S. Department of Agriculture, Natural Resources Conservation Service
Locally Important Farmland Soils	Locally Important Farmland Soils are those soils that are not prime or statewide importance and are used for the production of high value food, fiber or horticultural crops.
Locally Important Farmland Soils	Definition Source: U. S. Department of Agriculture, Natural Resources Conservation Service
Other	Soils other than Farmland soils, including water features.
Other	Definition Source: U. S. Department of Agriculture, Natural Resources Conservation Service

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

ACRES

Definition:

Calculated area of polygon feature in acres. Note, ACRES values are not automatically updated after modifying feature geometry (shape). Values must be recalculated after features are edited, simplified, generalized, clipped, dissolved, etc.

Alias: ACRES Type: Double Width: 8 Precision: 38 Scale: 8

Attribute definition source:

U.S. Department of Agriculture, Natural Resources Conservation Service

SHAPE.area

Alias: SHAPE.area Type: Double Width: 0 Precision: 0 Scale: 0

SHAPE.len

Alias: SHAPE.len Type: Double Width: 0 Precision: 0 Scale: 0

ESRI Feature Description

Description of spatial objects in the data using the Environmental Systems Research Institute (ESRI) terminology.

Environmental Systems Research Institute (ESRI) terms

depgis.DEP.SOILS_FARMLAND_POLY

ESRI feature type: Simple

Geometry type: Polygon

Topology: FALSE

Feature count: 236557

Spatial index: TRUE

Linear referencing: FALSE

SDTS Feature Description

Description of point and vector spatial objects in the data using the Spatial Data Transfer Standards (SDTS) terminology.

Spatial data transfer standard (SDTS) terms

depgis.DEP.SOILS_FARMLAND_POLY

Type: G-polygon

Count: 236557

+ Data Quality and Accuracy Information

General

Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.

Logical consistency report:

Certain node/geometry and topology GT- polygon/chain relationships are collected or generated to satisfy topological requirements (the GT-polygon corresponds to the soil delineation). Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file are free of gaps. The tests of logical consistency are performed using vendor software. All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common soil lines (i.e., adjacent polygons with the same label). Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. The Soil Survey of Connecticut is bordered on the north by the State of Massachusetts; to the east by the State of Rhode Island; to the south by Long Island Sound and to the west by the State of New York. Feature edges in this soil survey are not matched to those in Westchester County, New York, Putnam County, New York, Dutchess County, New York, Berkshire County, Massachusetts, Hampden and Hampshire Counties, Western Part, Massachusetts, Hampden and Hampshire Counties, Eastern Part, Massachusetts, and the State of Rhode Island soil surveys. Acceptable joins as outlined in Revisions to the National Soils Handbook, dated 8/27/97 were achieved with all of the surrounding surveys. Feature labels do not always match, but soil interpretations are similar enough to achieve an acceptable join. Map units in this survey that join map units in adjacent surveys share a common component, common stoniness class, and common slopes. Differences across state lines occurred relative to map unit design and scales used in mapping. Typically, map units designed for a scale of 1:12000 are comprised of consociations, complexes, and undifferientiated units. Complexes and undifferentiated units are comprised of two or more components. In areas where these complexes or undifferentiated units join a consociation (one named component), this is an acceptable join if the adjoining map units share a common component, common stoniness class, and common slopes thus resulting in similar soil interpretations. An exception is made for adjoining organic soils, which are considered to match. The scale is used to determine how much detail can be shown on the map. To deal with the limitations of scale, some map units were designed to cover two stoniness classes and two slope classes. Where map units that are very stony join extremely stony, they will be considered a acceptable join since each stoniness class is commonly an inclusion in the other during the mapping process. Non-stony map units must match non-stony map units. Overlapping slope ranges will be considered as matching.

Completeness report:

A map unit is a collection of areas defined and named in terms of their soil components or miscellaneous areas or both. Each map unit differs in some respect from all others in a survey area and each map unit has a symbol that uniquely identifies the map unit on a soil map. Each individual area, point, or line so identified on the map is a delineation.

Soil Scientists identify small areas of soils or miscellaneous areas that have properties and behavior significantly different than the named soils in the surrounding map unit. These minor components may be indicated as special features. If they have a minimal effect on use and management, or could not be precisely located, they may not be indicated on the map.

A map unit has specified kinds of soils or miscellaneous areas (map unit components), each with a designated range in proportionate extent. Map units include one or more kinds of soil or miscellaneous area. Miscellaneous areas are areas that have little or no recognizable soil.

Specific National Cooperative Soil Survey standards and procedures were used in the classification of soils, design and name of map units, and location of special soil features. These standards are outlined in Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, NRCS; Agricultural Handbook 436, Soil Taxonomy, 1995, USDA, NRCS; and all Amendments; Keys to Soil Taxonomy, (current issue) USDA, NRCS; National Soil Survey Handbook, title 430-VI,(current issue) USDA, NRCS.

The actual composition and interpretive purity of the map unit delineations were based on data collected by scientists during the course of preparing the soil maps. Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in the memorandum of understanding for the soil survey area and in documents that reside with the Natural Resources Conservation Service state soil scientist. Four kinds of map units are used in soil surveys: consociations, complexes, associations, and undifferentiated groups.

Consociations - Consociations are named for the dominant soil. In a consociation, delineated areas use a single name from the dominant component in the map unit. Dissimilar components are minor in extent. The soil component in a consociation may be identified at any taxonomic level. Soil series is the lowest taxonomic level. A consociation that is named as a miscellaneous area is dominantly that kind of area and minor components do not significantly affect the use of the map unit. The total amount of dissimilar inclusions of other components in a map unit generally does not exceed about 15 percent if limiting and 25 percent if nonlimiting. A single component of a dissimilar limiting inclusion generally does not exceed 10 percent if very contrasting.

Complexes and associations - Complexes and associations consist of two or more dissimilar components that occur in a regularly repeating pattern. The total amount of other dissimilar components is minor extent. The following arbitrary rule determines whether complex or association is used in the name. The major components of an association can be separated at the scale of mapping. In either case, because the major components are sufficiently different in morphology or behavior, the map unit cannot be called a consociation. In each delineation of a complex or an association, each major component is normally present though their proportions may vary appreciably from one delineation to another. The total amount of inclusions in a map unit that are dissimilar to any of the major components does not exceed 15 percent if limiting and 25 percent if nonlimiting. A single kind of dissimilar limiting inclusion usually does not exceed 10 percent.

Undifferentiated groups - Undifferentiated groups consist of two or more components that are not consistently associated geographically and, therefore, do not always occur together in the same map delineation. These components are included in the same named map unit because their use and management are the same or very similar for common uses. Generally they are grouped together because some common feature, such as steepness, stoniness, or flooding, determines their use and management. If two or more additional map units would serve no useful purpose, they may be included in the same unit. Each delineation has at least one of the major components, and some may have all of them. The same principles regarding the proportion of minor components that apply to consociations also apply to undifferentiated groups. The same principles regarding proportion of inclusion apply to undifferentiated groups as to consociations.

Minimum documentation consists of three complete soil profile descriptions that are collected for each soil added to the legend, one additional per 3,000 acres mapped; three 10 observation transects for each map unit, one additional 10 point transect per 3,000 acres.

A defined standard or level of confidence in the interpretive purity of the map unit delineations is attained by adjusting the kind and intensity of field investigations. Field investigations and data collection are carried out in sufficient detail to name map units and to identify accurately and consistently areas of about 3 acres.

Attribute Accuracy

Accuracy of the identification of data entities, features and assignment of attribute values.

Attribute accuracy report:

Attribute accuracy is tested by manual comparison of the source with hard copy plots and/or symbolized display of the map data on an interactive computer graphic system. Selected attributes that cannot be visually verified on plots or on screen are interactively queried and verified on screen. In addition, the attributes are tested against a master set of valid attributes. All attribute data conform to the attribute codes in the signed classification and correlation document and amendment(s).

Positional Accuracy

Accuracy of the positional aspects of the data.

Horizontal accuracy report:

The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards at a scale of 1 inch equals 1,000 feet. The difference in positional accuracy between the soil boundaries and special soil features locations in the field and their digitized map locations is unknown. The locational accuracy of soil delineations on the ground varies with the transition between map units.

For example, on long gently sloping landscapes the transition occurs gradually over many feet. Where landscapes change abruptly from steep to level, the transition will be very narrow. Soil delineation boundaries and special soil features generally were digitized within 0.01 inch of their locations on the digitizing source. The digital map elements are edge matched between data sets. The data along each quadrangle edge are matched against the data for the adjacent quadrangle. Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch.

+ Data Source and Process Information

Data Sources

Information about the source data used to construct or derive the data.

Data source information

SCS1

Title: Soil Survey of Hartford County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1962

Data type: atlas

Map scale denominator: 20000

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1962

Currentness reference:

publication date

SCS2

Title: Soil Survey of New London County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1983

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1983

Currentness reference:

publication date

SCS3

Title: Soil Survey of Tolland County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1966

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1966

Currentness reference:

publication date

NRCS1

Title: Soil Survey of Tolland County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1996

Data type: atlas

Map scale denominator: 12000

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1996

Currentness reference:

publication date

SCS4

Title: Soil Survey of Windham County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1981

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1981

Currentness reference:

publication date

SCS5

Title: Soil Survey of Fairfield County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1981

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1981

Currentness reference:

publication date

SCS6

Title: Soil Survey of New Haven County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1979

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1979

Currentness reference:

publication date

SCS7

Title: Soil Survey of Middlesex County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1979

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1979

Currentness reference:

publication date

SCS8

Title: Soil Survey of Litchfield County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1970

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1970

Currentness reference:

publication date

NRCS2

Title: Soil Survey of Connecticut

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication date: unpublished Material

Data type: atlas

Map scale denominator: 12000

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Beginning date: 1985

Ending date: 2001

Currentness reference:

correlation date

CTDEP1

Title: multiple digital hydrography subset

Originators: Connecticut Department of Environmental Protection

Publisher: Connecticut Department of Environmental Protection

Publication place: Hartford, Connecticut

Publication date: unpublished material

Data type: digital data

Map scale denominator: 24000

Media: digital spatial data

Source contribution:

Hydrographic features to include double line streams and area features greater than 3 acres in size were subset from USGS 1:24000 scale Digital Line Graphs updated to 1985 and 1990 imagery by NRCS and used as a template for soils digitizing

Date: 1983

Currentness reference:

CTDEP2

Title: multiple aerial photographs

Originators: Connecticut Department of Environmental Protection

Publisher: AeroGraphics Corporation

Publication place: Bohemia, New York

Publication date: 1986

Data type: Multiple B/W low altitude photographs

Map scale denominator: 12000

Media: paper

Source contribution:

base material for field mapping and soils/land use updates

Date: 1986

Currentness reference:

publication date

CTDEP3

Title: multiple aerial photographs

Originators: Connecticut Department of Environmental Protection

Publisher: AeroGraphics Corporation

Publication place: Bohemia, New York

Publication date: 1990

Data type: Multiple B/W low altitude photographs

Map scale denominator: 12000

Media: paper

Source contribution:

base material for field mapping and soils/land use updates

Date: 1990

Currentness reference:

publication date

CTDEP4

Title: multiple inked overlays

Originators: Connecticut Department of Environmental Protection

Publisher: Connecticut Department of Environmental Protection

Publication place: Hartford, Connecticut

Publication date: unpublished material

Data type: scannable overlay

Map scale denominator: 15840

Media: stable base material

Source contribution:

digitizing source

Date: 1995

Currentness reference:

publication date

USGS1

Title: multiple orthophotographic enlargements

Originators: U.S. Geological Survey

Publisher: U.S. Geological Survey

Publication place: Reston, Virginia

Publication date: 1980

Data type: remote sensing image

Map scale denominator: 15840

Media: stable base material

Source contribution:

base material for compilation - original orthophotoquad scale 1:24000

Date: 1980

Currentness reference:

publication date

USGS2

Title: multiple 3.75 minute digital orthophoto quadrangles

Originators: U.S. Geological Survey

Publisher: U.S. Geological Survey

Publication place: Reston, Virginia

Publication date: 1995

Data type: remote sensing image

Map scale denominator: 12000

Media: CD-ROM

Source contribution:

digital base material for 1:12000 review

Date: 1995

Currentness reference:

publication date

NRCS3

Title: Soil Survey Geographic (SSURGO) database for the Connecticut Statewide Update, Subset 1

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center

Publication place: Fort Worth, Texas

Publication date: 2004

Data type: map

Map scale denominator: 24000

Media: online

Source contribution:

SSURGO data for revision of spatial data

Date: 2004

Currentness reference:

NASIS

Title: National Soil Information System (NASIS) data base

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Collins, Colorado

Publication date: 2005

Data type: tabular digital data

Media: database

Source contribution:

attribute (tabular) information

Beginning date: 2005

Ending date: 2005

Currentness reference:

publication date

Soils_Farmland_Poly

Title: Farmland Soils interpretation for the Soil Survey Geographic (SSURGO) database for the State of Connecticut

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Worth, Texas

Publication date: 20070322

Data type: vector digital data

Data location: http://SoilDataMart.nrcs.usda.gov/

Other citation details:

ct600

Map scale denominator: 12000

Media: disc

Source contribution:

Includes all farmland soil polygon features for Connecticut in GeoDatabase feature format.

Beginning date: 20000602

Ending date: 20070322

Currentness reference:

publication date

Process Steps

Information about events, parameters, tolerances and techniques applied to construct or derive the data.

Process step information

Process Step 1

Process description:

Field procedures for the second order soil survey included plotting of soil boundaries determined by field observation and by interpretation of remotely sensed data. Boundaries were verified at closely spaced intervals, and the soils in each delineation were identified by traversing and transecting the landscape. The classification and map unit names were progressively reviewed December 1993 and August 2001.

Process date: 2001

Data Source used

CTDEP2, CTDEP3, NRCS2

Process Step 2

Process description:

Hartford County, Connecticut, had a previously published soil survey, 1962, at a scale of 1:20000. Landuse was updated to 1990, limited mapping was performed in areas where significant changes in classification occurred, and mapunits were correlated to the Connecticut legend.

Process date: 1994

Data Source used

SCS1

Title: Soil Survey of Hartford County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1962

Data type: atlas

Map scale denominator: 20000

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1962

Currentness reference:

publication date

Process Step 3

Process description:

New London County, Connecticut, had a previously published soil survey, 1983, at a scale of 1:15840. Landuse was updated to 1985/1986. Mapunits were correlated to the Connecticut legend. Small mapunits less than 3 acres and narrow drainage ways may have been combined with adjacent units.

Process date: 1994

Data Source used

SCS2

Title: Soil Survey of New London County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1983

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1983

Currentness reference:

publication date

Process Step 4

Process description:

Tolland County, Connecticut, had a previously published soil survey, 1966, at a scale of 1:15840. The original survey was developed mainly for agricultural interpretations, therefore, wooded areas were not mapped as detailed as open areas. Approximately 75% of the county was remapped to current standards during the period from 1985 to 1994. The new data was published in 1996. Mapunits were correlated to the Connecticut legend.

Process date: 1994

Data Source used

SCS3, NRCS1

Process Step 5

Process description:

 Windham County, Connecticut, had a previously published soil survey, 1981, at a scale of 1:15840. Landuse was updated to 1985/1986. Mapunits were correlated to the Connecticut legend. Small mapunits less than 3 acres and narrow drainage ways may have been combined with adjacent units.

Process date: 1994

Data Source used

SCS4

Title: Soil Survey of Windham County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1981

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1981

Currentness reference:

publication date

Process Step 6

Process description:

Fairfield County, Connecticut, had a previously published soil survey, 1981, at a scale of 1:15840. Landuse was updated to 1990. Mapunits were correlated to the Connecticut legend. Small mapunits less than 3 acres and narrow drainage ways may have been combined with adjacent units.

Process date: 2001

Data Source used

SCS5

Title: Soil Survey of Fairfield County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1981

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1981

Currentness reference:

publication date

Process Step 7

Process description:

New Haven County, Connecticut, had a previously published soil survey, 1979, at a scale of 1:15840. Landuse was updated to 1990. Mapunits were correlated to the Connecticut legend. Small mapunits less than 3 acres and narrow drainage ways may have been combined with adjacent units.

Process date: 2001

Data Source used

SCS6

Title: Soil Survey of New Haven County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1979

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1979

Currentness reference:

publication date

Process Step 8

Process description:

Middlesex County, Connecticut, had a previously published soil survey, 1980, at a scale of 1:15480. Landuse was updated to 1990, limited mapping was performed in areas where significant changes in classification occurred, and mapunits were correlated to the Connecticut legend.

Process date: 2001

Data Source used

SCS7

Title: Soil Survey of Middlesex County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1979

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1979

Currentness reference:

publication date

Process Step 9

Process description:

Litchfield County, Connecticut, had a previously published soil survey, 1970, at a scale of 1:15840. The original survey was developed mainly for agricultural interpretations, therefore, wooded areas were not mapped as detailed as open areas. Approximately 75% of the county was remapped to current standards during the period from 1994 to 2001.  Mapunits were correlated to the Connecticut legend.

Process date: 2001

Data Source used

SCS8

Title: Soil Survey of Litchfield County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1970

Data type: atlas

Map scale denominator: 15840

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1970

Currentness reference:

publication date

Process Step 10

Process description:

Hydrography was transferred from 1:15840 acetates to the 1:15840 orthophotographs as a reference only for soil delineations. This data was not digitized from the orthophotographs, but digitally subset from USGS DLGs. Field maps and published atlas sheets were ratioed to approximately 1:15840 when necessary and then manually compiled using imagery transfer techniques to 1:15840 orthophotograph enlargements. Slight adjustments were made to soil boundaries near hydrography for clarity. These adjustments occurred along narrow floodplains, shorelines, and other areas of fluctuating water levels. Water bodies for Litchfield County were adjusted from the aerial photography during remapping. Special soil features were compiled on film overlays and manually digitized using GRASS 4.1.3 and ArcInfo 8.2. Soil delineations were digitized using one of the following procedures:

1) Soil delineations were inked on 7mil overlays and scanned at 300dpi. Utilizing ProVec software, data were edited and converted to vector format. Data was then imported into ARC/INFO 3.4D and georeferenced to Connecticut State Plane feet - NAD 27. Each quadrangle has sixteen tics, therefore, data was transformed by ninths maintaining Root Mean Square (RMS) less than .003. The hydrography template was imported, vectors edited and labels created.

2) Soil delineations were manually digitized using ARC/INFO 3.2.1. Data were registered in Connecticut State Plane coordinates maintaining RMS less than .003. Weed and fuzzy tolerances maintained at 3. Data were transferred to ARC/INF0 6.0 for approximate edgematching and label editing, exported to DLGs, and imported to GRASS 4.1.3. Data was projected to UTM coordinates NAD 27 and edited for node to node edgematching.

Soil special features were manually digitized by using one of the following software products, GRASS 4.1.3 or ArcInfo 8.2. Compilation, digitizing, and quality control were performed by soil scientists and cartographic technicians at the Connecticut Natural Resources Conservation Service. Digital scanning and vector conversion was performed by private contractor. Digital editing was performed at the Connecticut Natural Resources Conservation Service and the Connecticut Department of Environmental Protection - Natural Resources Center. Digital soils delineations were visually verified using background digital orthophotograph imagery at 1:12000 to ensure accuracy at this scale. Organic soils, bedrock controlled soils and other easily identified features were utilized to ensure vertical integration and accurate soil delineation placement. Digital review for adherence to SSURGO standards was performed by the Missouri NRCS Digitizing Unit. Edits were made in ArcEdit. The survey area boundary was replaced with the boundary arcs from adjacent surveys, where possible. A new ARC/INFO coverage reflecting these edits was produced and reviewed for adherence to SSURGO standards by Missouri NRCS Regional Digitizing Unit staff. The certified data were uploaded to the Soil Data Warehouse for archiving and distribution.

Process date: 2001

Data Source used

SCS1, SCS2, SCS3, NRCS1, SCS4, SCS5, SCS6, SCS7, SCS8, NRCS2, CTDEP1, USGS1, CTDEP4, USGS2, NRCS3

Process Step 11

Process description:

The National Soil Information System data base was developed by Natural Resources Conservation Service soil scientists according to national standards.

Process date: 2005

Data Source used

NRCS1

Title: Soil Survey of Tolland County

Originators: U.S. Department of Agriculture, Soil Conservation Service

Publisher: U.S. Government Printing Office

Publication place: Washington, D.C.

Publication date: 1996

Data type: atlas

Map scale denominator: 12000

Media: paper

Source contribution:

information for soil map unit delineations, special soil feature locations, and data on soil properties

Date: 1996

Currentness reference:

publication date

Process Step 12

Process description:

The previously certified digital data of the Connecticut Statewide Update, Subset 1, were updated for
incorporation into the Connecticut statewide survey. Boundaries were replaced with the boundary arcs from adjacent subsets of Connecticut
as well as other adjacent surveys.  The updated data were incorporated into the statewide digital data, and a new ARC/INFO coverage reflecting these edits was produced with ARC/INFO 7.2.1 and reviewed for adherence to SSURGO standards by Missouri NRCS Regional Digitizing Unit staff.

Process date: 2005

Data Source used

NRCS1, NRCS2

Process Step 13

Process description:

The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.

Process date: 20050715

Data Source used

NASIS

Title: National Soil Information System (NASIS) data base

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Collins, Colorado

Publication date: 2005

Data type: tabular digital data

Media: database

Source contribution:

attribute (tabular) information

Beginning date: 2005

Ending date: 2005

Currentness reference:

publication date

Process Step 14

Process description:

The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.

Process date: 20050715

Data Source used

NASIS

Title: National Soil Information System (NASIS) data base

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Collins, Colorado

Publication date: 2005

Data type: tabular digital data

Media: database

Source contribution:

attribute (tabular) information

Beginning date: 2005

Ending date: 2005

Currentness reference:

publication date

Process Step 15

Process description:

Data was downloaded from the U.S. Department of Agriculture, Natural Resources Conservation Service Soil data mart as a shapefile format in UTM Zone 18, North American Hemisphere (NAD83) coordinates. A farmsoi_a_ct600 file was generated using Soil Data Viewer 5.2 which determined the prime and statewide important classification. Using ArcMap 9.2 software, soil features for the towns of Ashford, Chaplin, Eastford, Lebanon, and New Milford were extracted from the statewide shapefile. The extracted data was stored as a shapefile for each town. Each of these towns designated locally important farmland soils. Soil Mapunits for each town shapefile file were determined to meet the locally important farmland criteria and assigned the corresponding FrmlndCls attribute. The farmsoi_a_ct600 shapefile was then updated into include the data from these town shapefiles, resulting in a statewide farmland soils polygon feature class that includes prime, statewide important, and locally important farmland soils in towns where locally important farmland soils are designated. As needed, the process of adding locally important farmland soils to the statewide shapefile is repeated when towns decide to designate locally important farmland soils.

Process date: 20090515

Data Source used

NASIS

Title: National Soil Information System (NASIS) data base

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Collins, Colorado

Publication date: 2005

Data type: tabular digital data

Media: database

Source contribution:

attribute (tabular) information

Beginning date: 2005

Ending date: 2005

Currentness reference:

publication date

Data Source produced

farmsoi_a_ct600

Process Step 16

Process description:

Convert to GeoDatabase Feature Class format - Defined new Feature Class named Soils_Farmland_Poly; and imported the attribute definitions, loaded features and imported metadata from farmsoi_a_ct600.shp shapefile. Periodically, the Soils_Farmland_Poly feature class is updated a version of the statewide farmsoi_a_ct600.shp shapefile that include updated farmland soil information for towns that have designated locally important farmland soils.

Spatial Reference Properties for Feature Class:

Coordinate System: NAD_1983_StatePlane_Connecticut_FIPS_0600_Feet
XY Domain MinX: 100000; MaxX: 2247483.645
XY Domain MinY: 200000; MaxY: 2347483.645
Precision: 1000

Organization: State of Connecticut, Department of Environmental Protection

Person: Howie Sternberg

Phone: 860-424-3540

Address type: mailing and physical address

Address:

79 Elm Street

City: Hartford

State or Province: Connecticut

Postal code: 06106

Country: USA

Process date: 20090701

Process software and version: ArcGIS 9.2

Data Source used

farmsoi_a_ct600

Data Source produced

Soils_Farmland_Poly

Title: Farmland Soils interpretation for the Soil Survey Geographic (SSURGO) database for the State of Connecticut

Originators: U.S. Department of Agriculture, Natural Resources Conservation Service

Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service

Publication place: Fort Worth, Texas

Publication date: 20070322

Data type: vector digital data

Data location: http://SoilDataMart.nrcs.usda.gov/

Other citation details:

ct600

Map scale denominator: 12000

Media: disc

Source contribution:

Includes all farmland soil polygon features for Connecticut in GeoDatabase feature format.

Beginning date: 20000602

Ending date: 20070322

Currentness reference:

publication date

ESRI geoprocessing history

Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.

ESRI geoprocessing command information

1 CopyFeatures_74

Date: 20081215 Time: 162532

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures "Database Connections\10.18.8.94.depgis@DEP.sde\depgis.DEP.SOILS_FARMLAND_POLY" "Database Connections\062174-svr.depgis@DEP.sde\depgis.DEP.SOILS_FARMLAND_POLY" DEPFEATUREDYNAMIC 0 0 0

2 DeleteFeatures_1

Date: 20090127 Time: 080247

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures "Database Connections\10.18.8.60.depgis@dep_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY" "Database Connections\10.18.8.60.depgis@dep_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY"

3 Process

Date: 20110105 Time: 093342

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures "Database Connections\10.18.8.60.depgis@soilsedit_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY"

4 Process

Date: 20110105 Time: 093735

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\Append

Command issued: Append Y:\GIS_Warehouse\Public_Data\Geodatabase_format\Geoscience\Soils.gdb\SOILS_FARMLAND_POLY "Database Connections\10.18.8.60.depgis@soilsedit_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY" TEST # #

5 Process

Date: 20110105 Time: 115330

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures "Database Connections\10.18.8.60.depgis@soilsedit_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY"

6 Process

Date: 20110105 Time: 115723

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\Append

7 Process

Date: 20110107 Time: 095907

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures "Database Connections\10.18.8.60.depgis@soilsedit_92dc.sde\depgis.DEP.SOILS_FARMLAND_POLY"

8 Process

Date: 20110107 Time: 100303

Tool location: C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Data Management Tools.tbx\Append

9 Process

Date: 20110405 Time: 144755

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures depgis.DEP.SOILS_FARMLAND_POLY depgis.DEP.SOILS_FARMLAND_POLY

10 Process

Date: 20110405 Time: 153525

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures depgis.DEP.SOILS_FARMLAND_POLY depgis.DEP.SOILS_FARMLAND_POLY

11 Process

Date: 20110405 Time: 155716

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures

Command issued: DeleteFeatures depgis.DEP.SOILS_FARMLAND_POLY depgis.DEP.SOILS_FARMLAND_POLY