Estimated Depth to Water, North Carolina
Open File Report 01-487
By J.L. Eimers, Silvia Terziotti, and Mary Giorgino
Project Description for Map Data Produced as Part of the North Carolina Source Water Assessment Program
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to derive a rating for unsaturated zone and watershed characteristics for use by the State of North Carolina in assessing more than 11,000 public water-supply wells and approximately 245 public surface-water intakes for susceptibility to contamination. For ground-water supplies, the digital data sets used in the assessment included unsaturated zone rating, vertical series hydraulic conductance, land-surface slope, and land cover. For assessment of public surface-water intakes, the data sets included watershed characteristics rating, average annual precipitation, land-surface slope, land cover, and ground-water contribution. Documentation for the land-use data set applies to both the unsaturated zone and watershed characteristics ratings. Documentation for the estimated depth-to-water map used in the calculation of the vertical series hydraulic conductance also is included.
Overlay and index methods for rating the unsaturated zone and watershed characteristics were derived for use by the State of North Carolina in assessing more than 11,000 public water-supply wells and approximately 245 public surface-water intakes for susceptibility to contamination. Factors that influence the vulnerability of public ground water and surface water supplies to contamination were selected and assigned ratings on a scale of 1 to 10, covering the range of values in North Carolina. These factors then were assigned weight to reflect their relative influence on the perceived inherent vulnerability and reliability of the data (Eimers and others, 2000).
Factors selected for rating the vulnerability to contamination of the unsaturated zone are vertical series hydraulic conductance, land-surface slope, land cover, and land use. Vertical series hydraulic conductance measures the capacity of unsaturated material to transmit water. Land-surface slope influences whether precipitation runs off land surfaces or infiltrates into the subsurface. Land cover describes the physical overlay of the land surface, which influences the amount of precipitation that runs off or infiltrates into the subsurface. Land use describes activities occurring on the land surface that influence the potential generation of nonpoint-source contamination.
In order to develop the unsaturated zone vulnerability rating, an estimated depth-to-water map was created. The estimated depth-to-water map was necessary for the calculation of the vertical series hydraulic conductance values. A documentation file was created describing methods and formulas that were applied to generate this data set.
Factors selected for rating the watershed characteristics upstream from surface-water intakes are average annual precipitation, land-surface slope, land cover, land use, and ground-water contribution. The average annual precipitation represents the amount of water available for transport in a watershed. Land-surface slope, land cover, and land use have similar influences on watershed characteristics as those identified for the unsaturated zone. Ground-water contribution represents the part of streamflow that is derived from ground water.
The values for each factor were obtained from Geographic Information System (GIS) data layers stored as raster data sets. These raster data sets have 30-meter by 30-meter cells, and each cell is assigned a value based on the characteristics of the factor within that cell. Only one data set was created for the land-use factor because identical ratings were applied for the unsaturated zone rating and watershed characteristics rating. The values for each factor were assigned a weight, then the weighted values were combined to create the final vulnerability values for the unsaturated zone and watershed characteristics ratings.
A structured documentation file (known as "metadata") for each data set has been created. The documentation files comply with the Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (Federal Geographic Data Committee, 1994). The FGDC-compliant metadata files contain descriptions of the data sets and include narrative sections describing the procedures used to produce the data sets in digital form. The metadata also include references of the sources used to create the data set.
This page provides background context for the 11 digital data sets created for the North Carolina Source Water Assessment Program (SWAP), and is the access point for all associated metadata files.
The FGDC-compliant metadata for the 11 data sets are linked below. The digital data are not currently online because of space limitations. The digital data sets can be requested through the distribution contact identified in the metadata.
Eimers, J.L., Weaver, J.C., Terziotti, Silvia, and Midgette, R.W., 2000, Methods of rating unsaturated zone and watershed characteristics of public water supplies in North Carolina: U.S. Geological Survey Water-Resources Investigations Report 99-4283, 31 p.
Federal Geographic Data Committee, 1994, Content standards for digital geospatial metadata (June 8): Washington, D.C., Federal Geographic Data Committee, 78 p.
Estimated Depth to Water, North Carolina
Open File Report 01-487
By J.L. Eimers, Silvia Terziotti, and Mary Giorgino
Metadata
Metadata is also available as a Plain Text file.
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator: Jo Leslie Eimers
- Originator: Silvia Terziotti
- Originator: Mary Giorgino
- Publication_Date: 2001
- Title: Estimated Depth to Water, North Carolina
- Edition: Version 1.0, March 06, 2001
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-487
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: U.S. Geological Survey
- Description:
-
- Abstract:
An estimated depth-to-water map was generated for the State of North Carolina. For the Coastal Plain and Piedmont Provinces, a regression equation was used to estimate the depth to water. A conceptual model was used in conjunction with water-level data to estimate the depth to water in the Blue Ridge Province.
- Purpose:
-
This data set was created as part of the North Carolina Source Water Assessment Program (SWAP). This data is used in the calculation of vertical hydraulic conductance ratings, one of the factors needed to complete the unsaturated zone rating of public water supplies in North Carolina.
- Supplemental_Information:
-
A depth-to-water map was generated for the State of North Carolina. For the Coastal Plain and Piedmont Provinces, a regression equation was developed to estimate depth to water based on water-level records for 872 wells. The explanatory variables are surface elevation, in feet (elev); slope, in percent (slope); and soil thickness, in feet (thickness):
dtw = -5.3870 + 0.0622*elev + 0.2959*slope + 1.7001*thickness
where dtw is depth to water, in feet below land surface
A conceptual model was used to estimate depth to water in the Blue Ridge Province. The Blue Ridge Province was divided into four categories reflecting topographic settings-- hilltops, slopes greater than 10% where water accumulates, slopes greater than 10% where water does not accumulate, and valleys.
Using records for 393 wells, the following median water levels were assigned to topographic settings in the Blue Ridge Province:
Topographic setting Depth to water (feet)
------------------------
Hilltops H 36.0
Slopes without flow U 28.0
accumulation
Slopes with flow D 25.5
accumulation
Valleys V 15.0
Further information about the methods used to create the depth-to-water map are available in Eimers and others (2001).
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form as well as in ARC/INFO format, the metadata file may include some ARC/INFO-specific terminology.
- Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2001
- Currentness_Reference: 1960 - 2000 water levels
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: None Planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -84.42217283
- East_Bounding_Coordinate: -75.35577664
- North_Bounding_Coordinate: 36.5631918
- South_Bounding_Coordinate: 33.64180848
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: none
- Theme_Keyword: Depth to water
- Theme_Keyword: Water level
- Place:
-
- Place_Keyword_Thesaurus: none
- Place_Keyword: North Carolina
- Place_Keyword: Blue Ridge province
- Place_Keyword: Piedmont province
- Place_Keyword: Coastal Plain province
- Access_Constraints:
- none
- Use_Constraints:
- These data are not to be used for site-specific analysis
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Silvia Terziotti
- Contact_Organization: U.S. Geological Survey
- Contact_Position: Computer Specialist
- Contact_Address:
-
- Address_Type: mailing address
- Address: 3916 Sunset Ridge Road
- City: Raleigh
- State_or_Province: NC
- Postal_Code: 27607
- Country: USA
- Contact_Voice_Telephone: (919) 571-4000
- Contact_Facsimile_Telephone: (919) 571-4041
- Contact_Electronic_Mail_Address: (seterzio@usgs.gov)
- Data_Set_Credit:
-
The authors are grateful to colleagues in the Public Water Supply
Section of the Division of Environmental Health, North Carolina
Department of Environment and Natural Resources (DENR) for their
assistance in this collaborative project. The authors thank Robert
Midgette, Protection and Enforcement Branch Head; Elizabeth Morey,
Hydrogeologist; Gale Johnson, Hydrogeologist; and
Rajpreet Butalia, Geographic Information Systems Specialist.
The authors also thank the USGS report review team for their review of
the metadata products: Stephen J. Char, Jason M. Fine, Michael L.
Strobel, Douglas A. Harned and Rebecca J. Deckard.
- Native_Data_Set_Environment:
- Windows_NT, 5.0, Intel
ARC/INFO version 8.0.2
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Watershed Characteristics Rating for North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-490
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Unsaturated Zone Characteristics Rating for North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-489
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Land-Use Classes to Characterize Watersheds and the Unsaturated Zone in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-493
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Land-Cover Classes to Characterize the Unsaturated Zone in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-491
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Percent-Slope Classes to Characterize the Unsaturated Zone in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-495
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Jo Leslie Eimers, Silvia Terziotti and Gloria Ferrell
- Publication_Date: 2001
- Title: Vertical Series Hydraulic Conductance Classes to Characterize the Unsaturated Zone in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-486
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Jo Leslie Eimers, Silvia Terziotti and Mary Giorgino
- Publication_Date: 2001
- Title: Estimated Depth to Water, North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-487
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Land-Cover Classes to Characterize Watersheds in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-492
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Average Annual Precipitation Classes to Characterize Watersheds in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-494
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Percent-Slope Classes to Characterize Watersheds in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-496
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Cross_Reference:
-
- Citation_Information:
-
- Originator: Silvia Terziotti and Jo Leslie Eimers
- Publication_Date: 2001
- Title: Ground-Water Contribution Classes to Characterize Watersheds in North Carolina
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: USGS Open-File Report
- Issue_Identification: USGS OFR 01-488
- Publication_Information:
-
- Publication_Place: Raleigh, NC
- Publisher: USGS
- Data_Quality_Information:
- Attribute_Accuracy:
-
- Attribute_Accuracy_Report:
- The depth to water values were checked against the source water level data. Ranges of depths match values published in related literature on depth to water.
- Logical_Consistency_Report:
- Not applicable for raster data.
- Completeness_Report:
- Blue Ridge Province values reflect median depth-to-water values by topographic setting.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
- Visual checks of interpolated values against original source data.
- Lineage:
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: USGS
- Publication_Date: 2001
- Title: Ground Water Site Inventory Database
- Type_of_Source_Media: online
- Source_Time_Period_of_Content:
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2001
- Source_Currentness_Reference: data ranges from 1950 to present
- Source_Citation_Abbreviation: none
- Source_Contribution: fields for water level, well depth, topograhic setting, location
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Eimers, Jo Leslie
- Originator: Giorgino, M. J.
- Originator: Terziotti, Silvia
- Title: Estimated Depth to Ground Water in North Carolina
- Publication_Date: 2001
- Series_Information:
-
- Series_Name: Geological Society of America, Abstracts with Programs
- Issue_Identification: 50th Annual Meeting, Southeastern Section, April 5-6, 2001, Raleigh, North Carolina, v. 33, no. 2, p. A-62.
- Online_Linkage: not currently online
- Geospatial_Data_Presentation_Form: none
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2001
- Source_Currentness_Reference: data ranges from 1960's to present
- Source_Citation_Abbreviation: Eimers and others (2001)
- Source_Contribution: explanation of depth-to-water estimation
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Eimers, Jo Leslie
- Originator: Weaver, J. C.
- Originator: Terziotti, Silvia
- Originator: Midgette, R. W.
- Title: Methods of rating unsaturated zone and watershed characteristics of public water supplies in North Carolina
- Publication_Date: 2000
- Series_Information:
-
- Series_Name: U. S. Geological Survey Water-Resources Investigations
- Issue_Identification: WRIR 99-4283
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2000
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: Eimers and others (2000)
- Source_Contribution: methods for applying ratings
- Process_Step:
-
- Process_Description:
- Data was downloaded from the USGS Ground water site inventory database to reflect water levels within the surficial aquifer of North Carolina
- Process_Date: 2000
- Process_Step:
-
- Process_Description:
- Data was collected from DENR regional offices for Piedmont and Blue Ridge Provinces to supplement water-level data collected by USGS
- Process_Date: 2000
- Process_Step:
-
- Process_Description:
- Well data were digitized, to get accurate locations.
- Process_Date: 2000
- Process_Step:
-
- Process_Description:
- Overlay analysis in GRID was used to assign values to each well for soil thickness, soil permeability, elevation, percent slope, geology, distance to nearest stream and average annual precipitation.
- Process_Date: 2000
- Process_Step:
-
- Process_Description:
- Linear regression was performed on the data, by physiographic province, to identify explanatory variables and derive an equation for estimating depth to water.
- Process_Date: 2000
- Process_Step:
-
- Process_Description:
- The equation derived for the Coastal Plain and Piedmont was applied to the data:
dtw_ft = -5.3870 + (.0622 * h:\ned2\elev_30m) + (.2959 * h:\ned2\slope_30m) + (1.7001 * z:\soils\thk_ftx100 / 100)
- Process_Date: 2001
- Process_Step:
-
- Process_Description:
- Water bodies were assigned a depth-to-water value of 0.
- Process_Date: 2001
- Process_Step:
-
- Process_Description:
-
Topographic settings were defined for Blue Ridge province
(note that comments are not permitted in con statements in GRID,
they are inserted here to explain the condition definitions):
topo_5cat = con ( ~
/***** ridges
ridge_grd ne 0 && h:\ned2\slope_30m gt 10, 2, ~ /* hilltop
ridge_grd ne 0 && h:\ned2\slope_30m le 10, 1, ~ /* flat
/***** flowacc = 0, but not real ridge
blue_toposet == 1 && ridge_grd == 0 && h:\ned2\slope_30m gt 10, 3, ~ /* upslope
blue_toposet == 1 && ridge_grd == 0 && h:\ned2\slope_30m le 10, 4, ~ /* valley
/***** flowacc > 0 < 25 - upland slopes
blue_toposet == 2 && h:\ned2\slope_30m le 10, 4, ~ /* valley
blue_toposet == 2 && h:\ned2\slope_30m gt 10, 3, ~ /* upslope
/***** flowacc > 25 < 200 - lower slopes
blue_toposet == 3 && h:\ned2\slope_30m le 10 , 4, ~ /* valley
blue_toposet == 3 && h:\ned2\slope_30m gt 10 , 5, ~ /* downslope
/***** flowacc > 200
blue_toposet == 4, 4) /* valley
/* move the flats to valleys...
BLUE_TOPO = con (topo_5cat == 1, 4, topo_5cat)
- Process_Date: 2001
- Process_Step:
-
- Process_Description:
-
Create the median depth-to-water grid times 100; 0.005 added to ensure proper rounding:
Additem to blue_topo, and calculate item equal to mean depth to water, by topographic setting.
Create a new grid that has the depth to water values in it, calculate values times 100 to create an integer grid.
Merge the lakes to create depths of zero at lakes.
DTW_BLUE = blue_topo.dtw
DTWBLUEFTX100 = int(merge (h:\depth_to_water\cp_pied\lake_grd, (dtw_blue + .005) * 100 )))
- Process_Date: 2001
- Process_Step:
-
- Process_Description:
-
Merge the Coastal Plain/Piedmont depth to water map with the Blue Ridge
DTW_STATE = merge( ..\cp_pied\dtw3_ftx100, h:\blue_Ridge_toposet\dtwblueftx100)
- Process_Date: 2001
- Process_Step:
-
- Process_Description:
-
First draft of metadata created by seterzio using FGDCMETA.AML ver. 1.33 07/15/99 on ARC/INFO data set
h:\depth_to_water\state\dtw_state
- Process_Date: 20010306
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
-
- Raster_Object_Type: Grid Cell
- Row_Count: 10576
- Column_Count: 27060
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: State Plane Coordinate System 1983
- State_Plane_Coordinate_System:
-
- SPCS_Zone_Identifier: 4901
- Lambert_Conformal_Conic:
-
- Standard_Parallel: 34.333
- Standard_Parallel: 36.167
- Longitude_of_Central_Meridian: 79.000
- Latitude_of_Projection_Origin: 33.750
- False_Easting: 2000000
- False_Northing: 0.000
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
-
- Abscissa_Resolution: 30.0
- Ordinate_Resolution: 30.0
- Planar_Distance_Units: Meters
- Geodetic_Model:
-
- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: GRS1980
- Semi-major_Axis: 6378206.4
- Denominator_of_Flattening_Ratio: 294.98
- Entity_and_Attribute_Information:
-
- Overview_Description:
-
- Entity_and_Attribute_Overview:
-
Value Attribute Table, DTW_STATE.VAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 VALUE 4 10 B -
5 COUNT 4 10 B -
VALUE is the rating: valid values are integers -99 to 13562, inclusive Other than -99 (which reflects waterbodies), the values should be divided by 100 to arrive at actual depth to water values. (Range is 0 to 135.62 feet). COUNT is the number of 30-meter by 30-meter cells in the entire data set that have the particular value
Summary Statistics Table, DTW_STATE.STA:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 MIN 8 15 F 3
9 MAX 8 15 F 3
17 MEAN 8 15 F 3
25 STDV 8 15 F 3
Min is the minimum value (-99)
Max is the maximum value (13562)
Mean is the average value
STDV is the standard deviation
MIN MAX MEAN STDV
-99.000 13562.000 1361.931 1056.346
- Entity_and_Attribute_Detail_Citation: none
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Position: Water Webserver Team
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 12201 Sunrise Valley Drive, MS 440
- City: Reston
- State_or_Province: VA
- Postal_Code: 20192
- Country: USA
- Contact_Voice_Telephone: (800) 426-9000
- Contact_Instructions: Contact via email
- Contact_Electronic_Mail_Address: h2oteam@usgs.gov
- Distribution_Liability:
-
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.
- Metadata_Reference_Information:
-
- Metadata_Date: 20010209
- Metadata_Review_Date: 2001
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: North Carolina District Chief
- Contact_Position: District Chief
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 3916 Sunset Ridge Road
- City: Raleigh
- State_or_Province: NC
- Postal_Code: 27607
- Country: USA
- Contact_Voice_Telephone: (919) 571-4000
- Contact_Facsimile_Telephone: (919) 571-4041
- Contact_Electronic_Mail_Address: dc_nc@usgs.gov
- Metadata_Standard_Name:
-
FGDC Content Standards for Digital Geospatial Metadata
("CSDGM version 2")
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Access_Constraints: none
- Metadata_Use_Constraints: none
U.S. Department of the Interior |
U.S. Geological Survey
