Metadata for Montana Lakes With Surface Water Quality Assessments, 2000

- Identification Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- FGDC XML Metadata

Identification Information:

Citation:
  Originator: Montana Department of Enivironmental Quality
  Publication date: 2000
  Title: Montana Lakes With Surface Water Quality Assessments, 2000
  Publication place: Helena, MT
  Publisher: Montana State Library
Abstract:
  This layer shows lakes that were listed in Montana's 305(b) report of water quality assessment determinations for the year 2000.
  The 305(b) reports list water bodies which have been assessed as fully supporting all applicable beneficial uses, waters determined to be water quality impaired for one or more beneficial uses, and waters where the information collected to date is not sufficient to complete beneficial use support determinations. The data may be queried to select streams on the 303(d) List of Impaired and Threatened Waters. The 303(d) List, required by the federal Clean Water Act, focuses on waters in the state which have been assessed as having one or more of their beneficial uses impaired by human-caused pollution. These waters are required to have a Total Maximum Daily Load (TMDL) determined.
  The data source for the depiction of these water bodies was the U.S. Geological Survey 1:100,000 scale Digital Line Graph data.
  This layer was formerly hosted on the Montana State Library, Natural Resource Information System, web site for the Montana Department of Environmental Quality (DEQ). Each year the information from the waterbody assessments that was attached to the map data was different, and the layers for different years are not always comparable to each other. Please see the Clean Water Act Information Center (CWAIC) web site at http://cwaic.mt.gov for current data and for access to 305(b) report data that may be linked to the features. The State Library archive of the GIS data formerly on its web site does not contain complete documentation on the meaning of all the fields included in these data sets.
Purpose:
  To allow users to map information from Montana's 305(b) Surface Water Quality Assessment Report.
Time period of content:
  Calendar date: 2000
  Currentness reference: Publication Date
Access constraints: None
Use constraints:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Point of contact:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

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Spatial Reference Information:

Horizontal coordinate system definition:
  Grid coordinate system name: State Plane Coordinate System 1983
  SPCS zone identifier: 2500
  Lambert conformal conic:
  Standard parallel: 45
  Standard parallel: 49
  Longitude of central meridian: -109.5
  Latitude of projection origin: 44.25
  False easting: 600000.00000
  False northing: 0.00000
  Planar distance units: meters
  Geodetic model:
    Horizontal datum name: North American Datum of 1983
    Ellipsoid name: Geodetic Reference System 80
    Semi-major axis: 6378137
    Denominator of flattening ratio: 298.257

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Entity and Attribute Information:

Entity type label: Lakes2000
Entity type definition: Polygon feature class
  Attribute label: OBJECTID
    Attribute definition: Database record ID
  Attribute label: AREA
    Attribute definition: Area of the feature in square meters
  Attribute label: PERIMETER
    Attribute definition: Length of the feature perimeter in meters
  Attribute label: NAME
    Attribute definition: Name of the Water body
  Attribute label: ACRES
    Attribute definition:
      Area of the feature in acres. Some of the features are broken into several polygon features, and this field seems to give the acreage of the entire lake rather than the individual polygon.
  Attribute label: WBKEY
    Attribute definition: Water body identifier
  Attribute label: Hectares
    Attribute definition:
      Area of the feature in hectares. Some of the features are broken into several polygon features, and this field seems to give the area of the entire lake rather than the individual polygon.
  Attribute label: FOURCODE
    Attribute definition:
      8-digit Sub-basin hydrologic unit code. The national Watershed Boundary Dataset has approximately 100 sub-basins in Montana.
  Attribute label: NAMEA
    Attribute definition:
      This seems to be the name of a watershed that contains the lake.
  Attribute label: MAPNUM
    Attribute definition: This is a number between 0 and 39.
  Attribute label: Shape_fid
    Attribute definition: Database record ID for the feature shape
  Attribute label: Shape_Length
    Attribute definition: Length of the perimeter of feature in meters
  Attribute label: Shape_Area
    Attribute definition: Area of the feature in square meters
  Attribute label: CLASS
    Attribute definition:
      Waterbodies are assigned a class based on the level of protection that they require, the type of fisheries they support and their natural ability to support use for drinking water, agriculutre etc.

    Attribute Value | Definition of Attribute Value
    A-Closed | Waters are suitable for drinking, culinary and food processing purposes after simple. Also suitable for swimming, recreation, and growth and propagation of fishes and associated aquatic life (although access restrictions to protect public health may limit actual use).
    A-1 | Waters are suitable for drinking, culinary, and food processing purposes after conventional treatment for removal of naturally present impurities. Also suitable for bathing, swimming, and recreation; growth and propagation of salmonid fishes and associated aquatic life, waterfowl, and furbearers; and agricultural and industrial water supply.
    B-1 | Waters are suitable for drinking, culinary, and food processing purposes after conventional treatment; bathing, swimming, and recreation; growth and propagation of salmonid fishes and associated aquatic life, waterfowl, and furbearers; and agricultural and industrial water supply.
    B-2 | Waters are suitable for drinking, culinary and food processing purposes, after conventional treatment; bathing, swimming and recreation; growth and marginal propagation of salmonid fishes and associated aquatic life, waterfowl and furbearers; and agricultural and industrial water supply.
    B-3 | Waters are suitable for drinking, culinary, and food processing purposes after conventional treatment; bathing, swimming, and recreation; growth and propagation of non-salmonid fishes and associated aquatic life, waterfowl, and furbearers; and agricultural and industrial water supply.
    C-1 | Waters are suitable for bathing, swimming, and recreation; growth and propagation of salmonid fishes and associated aquatic life, waterfowl and furbearers; and agricultural and industrial water supply.
    C-2 | Waters are suitable for bathing, swimming and recreation; growth and marginal propagation of salmonid fishes and associated aquatic life, waterfowl and furbearers; and agricultural and industrial water supply.
    C-3 | Waters are suitable for bathing, swimming, and recreation; growth and propagation of non-salmonid fishes and associated aquatic life, waterfowl and furbearers. Naturally marginal for drinking, culinary, and food processing purposes, agriculture and industrial water supply.

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Distribution Information:

Distributor:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov
Resource description: Offline Data
Distribution liability:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.

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Metadata Reference Information:

Metadata date: 10/27/2014
Metadata contact:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

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