Metadata for Montana Streams With Surface Water Quality Assessments, 2006

- 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: 2006
  Title: Montana Streams With Surface Water Quality Assessments, 2006
  Publication place: Helena, MT
  Publisher: Montana State Library
Abstract:
  This layer shows streams that were listed in Montana's 305(b) report of water quality assessment determinations for the year 2006.
  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: 2006
  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: Streams2006
Entity type definition: Polyline feature class
  Attribute label: fid
    Attribute definition: Database record ID
  Attribute label: EVENT_ID
    Attribute definition: Record ID link for the 305(b) report data
  Attribute label: F_MEAS
    Attribute definition:
      Downstream measure along NHD route where stream segment starts
  Attribute label: T_MEAS
    Attribute definition: Upstream measure along NHD route where stream segment ends
  Attribute label: DUU_ID
    Attribute definition: Record ID from the National Hydrography Dataset
  Attribute label: RCH_CODE
    Attribute definition: Reach Code from the National Hydrography Dataset
  Attribute label: RCH_Date
    Attribute definition: This is a date between 4/30/1997 and 2/27/2001
  Attribute label: ENTITY_ID
    Attribute definition: Water body ID key
  Attribute label: METERS
    Attribute definition: Length of the segment in meters
  Attribute label: META_ID
  Attribute label: Shape
    Attribute definition: feature geometry
  Attribute label: Shape_Length
    Attribute definition: Length of the feature in meters
  Attribute label: CLASS
    Attribute definition: Waterbody impairment status code

    Attribute Value | Definition of Attribute Value
    1 | All uses are assessed and fully supported.
    2 | Some uses may not be supported due to natural or anthropogenic sourcess.
    3 | Insufficient data to assess any use
    4A | All TMDLs needed have been completed.
    4C | TMDLs are not required because no pollutant-related use impairment was identified
    5 | One or more uses are impaired and a TMDL is required.

  Attribute label: Water_Name
    Attribute definition: Name of the waterbody

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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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