onemap_prod.SDEADMIN.dcms

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Frequently-anticipated questions:

What does this data set describe?

Title: onemap_prod.SDEADMIN.dcms
Abstract:
The North Carolina Department of Environment and Natural Resources, Division of Water Quality, in cooperation with the NC Center for Geographic Information and Analysis, developed the digital GIS Discharger Coalitions' Monitoring Sites data to help analyze the impact on water quality of the discharges of the coalition's members. This data contains sites from multiple coalitions that are monitored by the Division of Water Quality (DWQ). Each coalition contains multiple members for which they routinely collect water samples. Each member of a coalition is a permitted National Pollutant Discharge Elimination System discharger. This data identifies the point locations of the sample sites.
Supplemental_Information:
system file name: 
system filename : dcms    file size = 0.2 mb

Revisions and updates to this layer include:
1) filename: dcms1100  The November 30, 2000 release was the
first version of this data.
  1. How should this data set be cited?

    NC DENR, Division of Water Quality, Water Qualit, 20001130, onemap_prod.SDEADMIN.dcms: NC DENR Div. of Water Quality, Water Quality Section, Raleigh, North Carolina.

    Online Links:

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -81.177743
    East_Bounding_Coordinate: -76.870278
    North_Bounding_Coordinate: 36.501970
    South_Bounding_Coordinate: 33.893679

  3. What does it look like?

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

    Calendar_Date: 30-Nov-2000
    Currentness_Reference: Date site locations were verified

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

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

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

      Indirect_Spatial_Reference: county name, subbasin name, region
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (231)

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

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 3200
      Lambert_Conformal_Conic:
      Standard_Parallel: 34.333333
      Standard_Parallel: 36.166667
      Longitude_of_Central_Meridian: -79.000000
      Latitude_of_Projection_Origin: 33.750000
      False_Easting: 609601.220000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.001024
      Ordinates (y-coordinates) are specified to the nearest 0.001024
      Planar coordinates are specified in meters

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

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Resolution: 1.000000
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    onemap_prod.SDEADMIN.dcms
    Locations of stations monitored by discharger coalitions (Source: NC DENR, Division of Water Quality)

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SUBBASIN
    A reference number for the subbasin in which the station is located (Source: NC DENR, DWQ)

    Frequency of measurement: None planned

    Formal codeset
    Codeset Name:NC Stream Classifications
    Codeset Source:NC DENR, DWQ, Water Quality Section, Planning Branch

    PERIMETER
    Total perimeter in coverage units (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:0.000
    Maximum:0.000
    Units:meters
    Resolution:0.001

    COALITION
    Abbreviation of Discharger Coalition name (Source: NC DENR, Division of Water Qualtiy, Water Quality Section, Environmental Sciences Branch)

    Frequency of measurement: None planned

    ValueDefinition
    LCFRPLower Cape Fear River Program
    MCFRBAMiddle Cape Fear River Basin Association
    LNBALower Neuse Basin Association
    YPDRBAYadkin-Pee Dee River Basin Association
    UCFRBAUpper Cape Fear River Basin Association

    STATION_ID
    Unique number for monitoring station, assigned by DWQ (Source: NC DENR, Division of Water Quality, Water Quality Section, Environmental Sciences Branch)

    Frequency of measurement: None planned

    Range of values
    Minimum:B0050000
    Maximum:Q9400000

    LATITUDE
    Measurement of the angle from the Earth's center to a point on the Earth's surface measured in a north-south direction (Source: NC DENR)

    Frequency of measurement: None planned

    Range of values
    Minimum:33.9083
    Maximum:36.4914

    LONGITUDE
    Measurement of the angle from the Earth's center to a point on the Earth's surface measured in an east-west direction (Source: NC DENR)

    Frequency of measurement: None planned

    Range of values
    Minimum:-76.9111
    Maximum:-81.1694

    STATION_LO
    Narrative description of a station's location (e.g. Cape Fear @ NC 11) (Source: NC DENR, Division of Water Quality, Water Quality Section, Environmental Sciences Branch)

    Frequency of measurement: None planned

    Narrative description varys in length and format between Coalitions

    ALIAS_ID
    Numeric station identification used by individual Discharger Coalitions (Source: NC DENR, DWQ, Water Quality Section, Environmental Sciences Branch)

    Frequency of measurement: None planned

    No set standard or proceedure for Coalitions to assign internal identification numbers

    COUNTY
    County name (Source: State of North Carolina)

    Frequency of measurement: None planned

    County names vary in length

    REGION
    A reference to the DWQ Regional Office that is responsible to the county in which a station is located (Source: NC DENR, DWQ)

    Frequency of measurement: None planned

    Agency office abbreviations vary by coalition

    DWQ_AMB
    Value identifies if the DCMS station corresponds to a DWQ Ambient Water Quality Monitoring Station site (Source: NC DENR, DWQ, Water Quality Section, Environmental Sciences Branch (DWQ, WQS, ESB))

    Frequency of measurement: None planned

    ValueDefinition
    YesSite corresponds
    NoSite does not correspond

    STREAM_CLA
    A reference to the DWQ stream classification of the stream segment in which the station is located (e.g. WS-IV Sw) (Source: NC DENR, DWQ, Water Quality Section, Planning Branch)

    Frequency of measurement: None planned

    Formal codeset
    Codeset Name:NC Stream Classifications
    Codeset Source:NC DENR, DWQ

    DCMS_

    DCMS_ID

    POLYGONID

    SCALE

    ANGLE

    onemap_prod.SDEADMIN.dcms.AREA

    Entity_and_Attribute_Overview:
    A point coverages of station locations. 
    DCMS.PAT  Point Attribute Table
COL  ITEM NAME         WDTH OPUT TYP N.DEC  DESCRIPTION
1    AREA                4   12  F    3     Total area in meters
5    PERIMETER           4   12  F    3     Total perimeter in meters
9    DCMS#               4    5  B    -     Point internal id number
13   DCMS-ID             4    5  B    -     Point user id number
17   COALITION           6    6  C    -     Coalition name abbreviation
23   STATION_ID          8    8  C    -     DWQ station ID
31   LATITUDE            4    7  F    4     Latitude of site
35   LONGITUDE           4    7  F    4     Longitude of site
39   STATION_LO         72   72  C    -     Station location narrative
111  ALIAS_ID            2    2  C    -     Coalition station ID
113  COUNTY             11   11  C    -     Station's county name
124  REGION             12   12  C    -     DWQ region
136  SUBBASIN            8    8  C    -     Subbasin name
144  DWQ_AMB             1    1  C    -     AWQMS station correspondence
145  STREAM_CLA         14   14  C    -     DWQ stream classification
    Entity_and_Attribute_Detail_Citation: None

Who produced the data set?

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

  2. Who also contributed to the data set?

    NC Dept of Environment and Natural Resources
Division of Water Quality
Water Quality Section
Environmental Sciences Branch

Governor's Office
Office of State Budget, Planning and Management
North Carolina Center for Geographic Information and Analysis
301 North Wilmington Street, Suite 700
Raleigh, NC 27601-2825

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

    NC EHNR Division of Water Quality, Water Quality Section
    Ecosystems Unit supervisor
    1621 Mail Service Center
    Raleigh, North Carolina 27699-1621
    U.S.A.

    (919) 733-9960 (voice)
    (919) 733-9959 (FAX)

    Hours_of_Service: 7:30-4:30
    Contact_Instructions: Preferred contact is by telephone.

Why was the data set created?

This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System.

How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 1)
    NC DENR, Division of Water Quality, Water Qualit, 20001130, Discharger Coalitions' Monitoring Sites.

    Type_of_Source_Media: electronic file
    Source_Contribution: Excel spreadsheet of monitoring site locations and attributes.

  2. How were the data generated, processed, and modified?

    Date: 15-Nov-2000 (process 1 of 4)
    NC EHNR Division of Water Quality, Water Quality Section received station information, including latitude and longitude, from participating discharger. The information was kept in an internal SQL database, corrected as needed, and exported to an EXCEL spreadsheet for conversion to a GIS database.

    Date: 30-Nov-2000 (process 2 of 4)
    CGIA converted data from an EXCEL spreadsheet into a shapefile in ESRI's ArcView GIS software. The shapefile was then converted to a coverage using ESRI's ARC/INFO GIS software.

    (process 3 of 4)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\david\LOCALS~1\Temp\xml798.tmp

    (process 4 of 4)
    Dataset copied.

    Data sources used in this process:

    • Server=207.192.29.55; Service=5151; Database=onemap; User=sdeadmin; Version=sde.DEFAULT

  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?

    DWQ maintains the data in an internal SQL database. The attributes are reviewed by DWQ staff as the data is used.

  2. How accurate are the geographic locations?

    DWQ received latitude and longitude values from participating dischargers and refined the locations using "Terrain Navigator" software which generates a latitude and longitude value at the cursor.

  3. How accurate are the heights or depths?

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

    These data represent the locations and attributes of all the current discharger coalition monitoring stations administered by DWQ.

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

    Using ESRI's ARC/INFO GIS software, the data set was built for points using the "build" command. Topology has not been edited since the last build or clean.

How can someone get a copy of the data set?

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

Access_Constraints: none
Use_Constraints:
Acknowledgement of products derived from this data set should cite the following: The source of the Discharger Coalitions' Monitoring Sites data is the North Carolina Corporate Geographic Database. Earlier versions of this dataset may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.

  1. Who distributes the data set? (Distributor 1 of 1)

    NC Center for Geographic Information and Analysis
    Production Services
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions:
    Phone and electronic mail preferred For current price information use a web browser: COST INFORMATION - <http://www.cgia.state.nc.us/cost.html>
  2. What's the catalog number I need to order this data set?

    Discharger Coalitions' Monitoring Sites

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.

  4. How can I download or order the data?

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

    Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.

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

    All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - <http://www.cgia.state.nc.us/cost.html>

Who wrote the metadata?

Dates:
Last modified: 02-Oct-2006
Metadata author:
North Carolina Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Management
301 North Wilmington Street, Suite 700
Raleigh, North Carolina 27601-2825
USA

(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us

Hours_of_Service: 8:30AM - 5:30PM
Contact_Instructions: Phone and electronic mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.9.5 on Wed Aug 27 10:29:41 2008