system filename : npdes file size = 0.56 mb Revisions and updates to this layer include: 9.) filename: npdes0306 The March 30, 2006 updates consisted of obtaining the most current NPDES data from the Division of Water Quality to replace existing data (WQ data currency - 12/07/2005). NOTE: Two points fell outside of North Carolina (permit NC0085839 and NC0007510). These were corrected using archived NPDES data. 8.) filename: npdes1000 The October 11, 2000 updates consisted of obtaining the most current NPDES data from the Division of Water Quality to replace existing data. .PAT items incorporated into the new version that did not exist in the December 1998 version include: permpipe, status, majorminor, issuedate, expdate, flow_mgd, dc1, dc2, dc3, dc4, dc5, region, lat, long, and class. (For further details on the items, see Entity_and_Attribute_Information section.) .PAT items removed include date (Last time point was checked by technician for accuracy) and MAP# (DWQ quadrangle map index number). NOTE: The following permits were removed from the database: NC0007064, NC0074578, NC0084883, and NC0086304. (Because of lat/long problems, these points fell outside the state, and NCDWQ did not have staff available to research and rectify these errors.) 7.) filename: npdes1298 The December 1998 update to this layer consisted of projecting the data from NAD27 datum, State Plane projection, units of measure feet TO: NAD83 DATUM, State Plane PROJECTION, UNITS OF MEASURE METERS. This was done to comply with the NC Geographic Information Coordinating Council's "Statement of Direction for North Carolina Corporate Geographic Database Horizontal Reference, Datum and Unit of Measure". This reprojecting was done in various ways depending on the data type and content. Vector data was projected using the 'project' command in ESRI's Arc software and topology was cleaned and built based on coverage needs. Raster data was projected using ESRI's Grid module and various steps as applicable. 6.) filename: npdes 694 The June 28, 1994 file contains 3,280 points. 5.) filename: npdes1293 (previously named nc.npdes1293) The December, 10 1993 file contains 3,294 points. 4.) filename: npdes893 (previously named nc.npdes893) August 1, 1993 3.) filename: npdes593 (previously named nc.npdes593) May 1, 1993 2.) filename: npdes193 (previously named nc.npdes193) January 26, 1993 1.) filename: npdes1291 (previously named nc.npdes1291) December 1991 version.
NC DENR Division of Water Quali, Planning Branch, 20060330, onemap_prod.SDEADMIN.npdes: NC DENR Division of Water Quality, Planning Branch, Raleigh, North Carolina.Online Links:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.002048
Ordinates (y-coordinates) are specified to the nearest 0.002048
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.
Coordinates defining the features.
Sequential unique whole numbers that are automatically generated.
| Range of values | |
|---|---|
| Minimum: | 752815 |
| Maximum: | 841323 |
| Range of values | |
|---|---|
| Minimum: | 0.000 |
| Maximum: | 0.000 |
| Units: | meters |
| Resolution: | 0.001 |
Permit numbers vary in number of characters.
Owner names very in length and number of words.
Facility names very in length and number of words.
County names vary in length and number of words.
| Value | Definition |
|---|---|
| Asheville | Asheville Regional Office |
| Fayetteville | Fayetteville Regional Office |
| Mooresville | Mooresville Regional Office |
| Raleigh | Raleigh Regional Office |
| Washington | Washington Regional Office |
| Wilmington | Wilmington Regional Office |
| Winston-Salem | Winston-Salem Regional Office |
Types vary in number of characters.
| Value | Definition |
|---|---|
| Major | Major facility |
| Minor | Minor facility |
Subbasin numbers vary in number of characters.
Stream names vary in length and number of words
UTs vary in number of characters.
| Range of values | |
|---|---|
| Minimum: | 335235 |
| Maximum: | 363339 |
| Range of values | |
|---|---|
| Minimum: | 335235 |
| Maximum: | 363339 |
| Range of values | |
|---|---|
| Minimum: | 752815 |
| Maximum: | 841323 |
ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION AREA 4 12 F 3 Total area in meters PERIMETER 4 12 F 3 Total perimeter in meters NPDES# 4 5 B - Point internal id number NPDES-ID 4 5 B - Point internal id number PERMIT 9 9 C - NPDES permit number OWNER 54 54 C - Facility owner FACILITY 49 49 C - Facility name COUNTY 12 12 C - County pipe discharges into REGION 13 13 C - Area DWQ regional office TYPE 32 32 C - Type of facility CLASS 5 5 C - DWQ stream class (major or minor) SUBBASIN 4 5 B - DWQ Subbasin number RECEIVING 111 111 C - Stream receiving discharge UT_ 3 3 C - Identifies if stream is UT LATITUDE 8 9 F - Latitude (DDMMSS) LONGITUDE 8 9 F - Longitude (DDMMSS) DDLAT 8 11 F - Latitude (decimal degrees) DDLONG 8 11 F - Longitude (decimal degrees)
Div. of Water Quality Water Quality Section NC Dept. of Environment and Natural Resources 512 N. Salisbury Street Raleigh, NC 27604-1148 NCCGIA Director, Karen Siderelis Database Administration, Zsolt Nagy Database Management, David Giordano Project Manager, Cheryl Pearce North Carolina Center for Geographic Information and Analysis Governor's Office Office of State Planning 301 North Wilmington Street, Suite 700 Raleigh, NC 27601-2825
(919) 733-5083 (ext. 575) (voice)
cam.mcnutt@ncmai.net
This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
NC DENR - Div. of Water Quality, Water Quality Section, 19940628, National Pollutants Discharge Elimination System Sites: NC DENR - Div. of Water Quality, Water Quality Section, Raleigh, North Carolina.
Survey, US Geological , Unknown, USGS 7.5 Minute series quadrangles: US Geological Survey, Reston, Virginia.
Person who carried out this activity:
(919) 733-5083 (voice)
(919) 715-5637 (FAX)
Person who carried out this activity:
(919) 733-2090 (voice)
(919)715-0725 (FAX)
dataq@nc.mail.net
Data sources used in this process:
Data sources used in this process:
The NC DENR Water Quality Planning Section presented the NPDES sites to NC CGIA as ASCII files. They were converted to ARC/INFO coverages and were given attributes also supplied by the Water Quality Planning Branch. The digital files were plotted and any necessary label corrections were made.
The National Pollutant Discharge Elimination System Sites were marked on 7.5 Minute USGS paper topographic maps which meet National Map Accuracy Standards. Sites were located using a best estimate with reference to surrounding features.
These data represent the locations and identities of National Pollutant Discharge Elimination System Sites in North Carolina as identified by the Water Quality Planning Section.
Using ESRI's ARC/INFO GIS software, the dataset was built for points using the "build" command. Topology has not been edited since the last build or clean.
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 National Pollutant Discharge Elimination System Sites (NPDES) 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.
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@nc.mail.net
National Pollutant Discharge Elimination System Sites
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.
FOR DIGITAL OR NON-DIGITAL DATA, Contact NC CGIA, Data Distribution to order data, Phone 919.733.2090 ... Email dataq@nc.mail.net ... Web Page order form <http://www.cgia.state.nc.us/cgdb/index.html>
For current FORMAT/MEDIA INFORMATION, use a web browser: <http://www.cgia.state.nc.us/cost.html> or phone NC CGIA Data Distribution 919.733.2090
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.
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>
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@nc.mail.net