North Carolina Center for Geographic Information and Analysis, 20060210, Statewide 24K hydrography (polys): North Carolina Center for Geographic Information and Analysis, Raleigh, NC.
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using Coordinate pair
Abscissae (x-coordinates) are specified to the nearest 1
Ordinates (y-coordinates) are specified to the nearest 1
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 meters.
The flattening of the ellipsoid used is 1/298.257.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Whole numbers that are automatically generated.
Whole numbers that are automatically generated.
Sequential unique whole numbers that are automatically generated.
Sequential unique whole numbers that are automatically generated.
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
Classification number used internally
Names of streams vary in length and number of words.
varies in length and number of words.
Subbasin indentification number varies
variable by feature
| Value | Definition |
|---|---|
| FW Acres | freshwater acres associated with lakes, ponds, and reservoirs |
| FW Miles | freshwater miles associated with streams and rivers |
| S Acres | Acres associated with estuarine waters |
| S Miles | miles associated with tidal creeks represented by a single line only |
| Coast Miles | miles of Atlantic Ocean coastline |
Variable by feature
| Value | Definition |
|---|---|
| F | aquatic life is supported (FS or S) |
| S | aquatic life is supported (FS or S) |
| PS | aquatic life is impaired (PS, NS or I) |
| NS | aquatic life is impaired (PS, NS or I) |
| I | aquatic life is impaired (PS, NS or I) |
| NR | inconclusive data to make assessment for aquatic life use |
| ND | no data are available to make assessment for aquatic life use |
| Value | Definition |
|---|---|
| M | monitored |
| E | evaluated |
| Value | Definition |
|---|---|
| F | recreation criteria not exceeded (FS or S) |
| S | recreation criteria not exceeded (FS or S) |
| PS | recreation criteria exceeded, water impaired (PS, NS or I) |
| NS | recreation criteria exceeded, water impaired (PS, NS or I) |
| I | recreation criteria exceeded, water impaired (PS, NS or I) |
| NR | inconclusive data to make assessment for recreation use |
| ND | no data are available to make assessment for recreation use |
| Value | Definition |
|---|---|
| M | monitored |
| E | evaluated |
| Value | Definition |
|---|---|
| F | no advice or advisory indicated for segment (FS or S) |
| S | no advice or advisory indicated for segment (FS or S) |
| PS | advice or advisory indicated for segment - impaired (PS, NS or I) |
| NS | advice or advisory indicated for segment - impaired (PS, NS or I) |
| I | advice or advisory indicated for segment - impaired (PS, NS or I) |
| NR | inconclusive data to make assessment for fish consumption use |
| ND | no data are available to make assessment for fish consumption use |
| Value | Definition |
|---|---|
| M | monitored |
| E | evaluated |
| Value | Definition |
|---|---|
| F | water is approved for shellfish harvesting (FS or S) |
| S | water is approved for shellfish harvesting (FS or S) |
| PS | water is not approved for shellfish harvesting - impaired (PS, NS or I) |
| NS | water is not approved for shellfish harvesting - impaired (PS, NS or I) |
| I | water is not approved for shellfish harvesting - impaired (PS, NS or I) |
| Value | Definition |
|---|---|
| M | monitored |
| M | evaluated |
| Value | Definition |
|---|---|
| F | water supplier able to supply potable water (FS or S) |
| S | water supplier able to supply potable water (FS or S) |
| Value | Definition |
|---|---|
| M | monitored |
| E | evaluated |
Classification number used internally
Classification number used internally
Varies in length and number of words
| Value | Definition |
|---|---|
| WS-I | Waters protected as water supplies which are in natural and undeveloped watersheds |
| WS-II | Waters protected as water supplies which are generally in predominantly undeveloped watersheds |
| WS-III | Waters protected as water supplies which are generally in low to moderately developed watersheds |
| WS-IV | Waters protected as water supplies which are generally in moderately to highly developed watersheds |
| WS-V | Waters protected as water supplies which are generally upstream and draining to Class WS-IV waters |
| B | Primary recreation and any other usage specified by the "C" classification |
| C | Aquatic life propagation and survival, fishing, wildlife, secondary recreation, and agriculture |
| SA | Shellfishing for market purposes and any other usage specified by the "SB" and "SC" classification |
| SB | Primary recreation and any other usage specified by the "SC" classification |
| SC | Aquatic life propagation and survival, fishing, wildlife, and secondary recreation |
| Tr | Suitable for natural trout propagation and maintenance of stocked trout |
| Sw | Waters which have low velocities and other natural characteristics which are different from adjacent streams |
| HQW | High Quality Waters which are waters that are rated as excellent based on biological and physical/chemical characteristics through division monitoring or special studies; native and special native trout waters (and their tributaries) designated by the Wildlife Resources Commission; primary nursery areas (PNA) designated by the Marine Fisheries Commission and other functional nursery areas designated by the Wildlife Resources Commission; critical habitat areas designated by the Wildlife Resources Commission or the Department of Agriculture; all water supply watersheds which are either classified as WS-I or WS-II or those for which a formal petition for reclassification as WS-I or WS-II has been received from the appropriate local government and accepted by the Division of Water Quality; and all Class SA waters. |
| NSW | Nutrient Sensitive Waters which require limitations on nutrient inputs |
Variable by feature
Variable by basin
Variable by basin
919-733-2090 (voice)
919-715-0725 (FAX)
dataq@ncmail.net
This dataset was created to provide a large and diverse group of users a data resource of North Carolina surface waters to enhance planning for sustainable growth and assist governmental agencies in making resource management decisions through use of a Geographic Information System (GIS).
Survey, US Geological , Unknown, USGS 7.5 Minute series quadrangles: US Geological Survey, Reston, Virginia.
NC Center for Geographic Information and Analysis, 20020905, Hydrography (1:100,000): NC Center for Geographic Information and Analysis, Raleigh, North Carolina.
NC DENR - Div. of Water Quality, Water Quality Planning Section, Unknown, Use Support and water quality Classification Information: NC DENR - Div. of Water Quality, Water Quality Planning Section, Raleigh, North Carolina.
Person who carried out this activity:
919.733.2090 (voice)
919.715.0725 (FAX)
gregg.vulinec@ncmail.net
Person who carried out this activity:
919.733.5083 x575 (voice)
919.715.5637 (FAX)
cam.mcnutt@ncmail.net
All attribute codes have been reviewed for accuracy by the associated agency. NCDENR, Division of Water Quality is responsible for stream classifications and use support. The NC Center for Geographic Information and Analysis is responsible for linework and DLG codes.
Hydrography 1:24,000-scale features were taken from the USGS 1:24,000-scale DLGs. Supplemented hydrographic features were digitized from 1:100,000-scale bases and the linework checked against the bases to within a linewidth.
These data represent the locations and identities of surface shorelines, waters consisting of streams and rivers, lakes, ponds, and as depicted on USGS 1:24,000-scale digital line graphs and supplemented to reflect hydrographic features classified by the state but not represented on the original DLG linework. Each stream reach is labeled with stream classification and use support information.
Software checks for topology. There are no duplicate features, but coincident lines are maintained between data layers where appropriate. Polygonal features begin and end at the same point, contain no overshoots or undershoots. Linear features are continuous where appropriate, i.e., dangling arcs are removed if they are not required.
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 Hydrography (1:24,000) with use support data set is the NC OneMap Database. Earlier versions of this dataset may exist. The user must be sure to use the appropriate data set for the time period and river basin 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.
919.733.2090 (voice)
919.715.0725 (FAX)
dataq@ncmail.net
Hydrography (1:24,000)
NCCGIA is charged with the development and maintenance of the Nc OneMap 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 NC OneMap 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 dataset. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.
| Data format: | ESRI shapefile (*.shp) |
|---|---|
| Network links: |
NC OneMap |
Data can be customized on a cost-recovery basis. Contact dataq@ncmail.net or 919-733-2090 for more information.
All formats available from www.nconemap.com are in ESRI shapefile. Other formats are available on a cost-recovery basis - contact dataq@ncmail.net or 919.733.2090 for more information. Format compatibility is the user's responsibility.
919.733.2090 (voice)
919-715.0725 (FAX)
dataq@ncmail.net