Metadata for Montana Lakes With Surface Water Quality Assessments, 2012

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

Identification Information:

Citation:
  Originator: Montana Department of Environmental Quality
  Publication date: 2012
  Title: Montana Lakes With Surface Water Quality Assessments, 2012
  Publication place: Helena, MT
  Publisher: Montana State Library
  Other citation details:
    The original dataset was created by Research Triangle International (RTI), an EPA contractor, for the Montana Department of Environmental Quality's (DEQ) 2002 305(b)/303(d) Report. Since its creation, this dataset has been updated by RTI and DEQ representatives on an as needed basis. RTI's current contact for this layer is: Kevin Pickren Research Triangle International 3040 Cornwallis Rd. Research Triangle Park, NC 27709-2194, 919-316-3721
Abstract:
  This dataset is a polygon shapefile of Assessment Unit waterbodies based on the 1:24,000 High Resolution National Hydrography Dataset (NHD). It contains all Lake water bodies listed in Montana's 2012 305(b)/303(d) Integrated Water Quality Report. It lists waters 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 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 pollutants/pollution. These waters are required to have a Total Maximum Daily Load (TMDL) determined.
  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:
  This dataset allows users to query and display information from Montana's 2012 305(b)/303(d) Integrated Water Quality Report. The Assessment Units are joined to queries and/or tables from our 2012 Assessment Database (ADB).
Supplemental information:
  The 2012 ADB may be downloaded from the Clean Water Act Information Center (CWAIC). The URL for the CWAIC site is www.cwaic.mt.gov. To perform table joins in ArcGIS, the user will need to use the ID305B from the ADB and the ID305B field in this GIS layer. These fields are equivalent. Make sure to define a definition query to only select the proper cycle in the ADB access database when joining.
Time period of content:
  Calendar date: 2012
  Currentness reference: Publication Date
Access constraints: None
Use constraints:
  This dataset is public information and may be interpreted by other organizations, however, they are responsible for the appropriate application of the data. Acknowledge the Montana Department of Environmental Quality as the data source.
  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:
  Michael Pipp
  Montana Department of Environmental Quality
  1520 East Sixth Avenue
  Helena, MT 59620
  Telephone: 406-444-7424
  E-Mail: mpipp@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: Lakes2012
Entity type definition: Polygon feature class
  Attribute label: OBJECTID
    Attribute definition: Database record ID
  Attribute label: ID305B
    Attribute definition:
      ID305B is unique to individual waterbody segments. Segments can be composed of more than one reach. This is the link to the ID305B field in the Assessment database.
  Attribute label: WATER_NAME
    Attribute definition: Name of the waterbody
  Attribute label: WATER_LOCATION
    Attribute definition: Location description of the Assessment Unit
  Attribute label: WATER_TYPE
    Attribute definition: Type of Water Body

    Attribute Value | Definition of Attribute Value
    EPHEMERAL STREAM | -
    FRESHWATER LAKE | -
    RIVER | -
    RIVER INTERMITTENT | -

  Attribute label: WATER_SIZE
    Attribute definition:
      Size of the waterbody - the units of this measurement are shown in the UNITS field.
  Attribute label: UNITS
    Attribute definition: The units of measurement of the water size (Miles or Acres)
  Attribute label: USE_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.
    I | The goal of the State of Montana is to have these waters fully support the following uses: drinking, culinary and food processing purposes after conventional treatment; bathing, swimming and recreation; growth and propagation of fishes and associated aquatic life, waterfowl and furbearers; and agricultural and industrial water supply.

  Attribute label: WQ_CATEGOR
    Attribute definition: Waterbody water quality category 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.
    2A | Some, but not all of the beneficial uses are supported.
    2B | A water quality standard is exceeded due to an apparent natural source in the absense of any identified manmade sources.
    3 | Insufficient data to assess any use
    4A | All TMDLs needed to rectify all identified threats or impairments have been completed and approved.
    4B | TMDLs are not required because the waterbody is on land where other pollution control requirements are expected to address all impairments.
    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: HUC4
    Attribute definition:
      8-digit hydrologic unit 4th-code of the sub-basin watershed that contains the waterbody
  Attribute label: HUC_NAME
    Attribute definition: Name of the sub-basin watershed that contains the waterbody
  Attribute label: COUNTY
    Attribute definition: List of counties that contain the waterbody
  Attribute label: TMDL_PLANNING_AREA
    Attribute definition: Name of the TMDL Planning Area that contains the waterbody
  Attribute label: WATERSHED
    Attribute definition: Name of the watershed basin that contains the waterbody
  Attribute label: ECO_REGION
    Attribute definition: Name of the EPA Ecoregion that contains the waterbody
  Attribute label: BASIN
    Attribute definition: Name of the watershed sub-region that contains the waterbody
  Attribute label: COMPLETED_TMDLS
    Attribute definition:
      List of substances for which TMDLs have been approved, with dates of approval
  Attribute label: DELISTED_CAUSES
    Attribute definition: List of substances delisted, with dates and reason codes
  Attribute label: IMPAIRMENT_CAUSES
    Attribute definition:
      List of Pollutants and Cycle First Listed that are currently impairing the Assessment Unit
  Attribute label: NON_POLLUTANT_CAUSES
    Attribute definition:
      List of causes, other than pollutants, currently impairing the waterbody
  Attribute label: SOURCES
    Attribute definition: List of sources of the waterbody's impairment causes
  Attribute label: USE_ATTAINMENTS
    Attribute definition:
      List of use attainment codes for each beneficial use of the waterbody. F = Fully Supporting, I = Insufficient Information, N = Not Supporting, X = Not Assessed, P = Partial Support, T = Threatened
  Attribute label: CYCLE_LAST_ASSESSED
    Attribute definition:
      The last cycle the watebody was assessed by DEQ Monitoring section
  Attribute label: Shape
    Attribute definition: feature geometry
  Attribute label: Shape_Length
    Attribute definition: Length of the perimeter of the feature in meters
  Attribute label: Shape_Area
    Attribute definition: Area of the feature in square meters

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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: 10/31/2014
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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