Revisions and updates to this layer include:
4.) filename: hsds1298 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.
3.) filename: hsds396 The March 29, 1996 revisions consisted
of changing the name of the data layer from Superfund Sites, to
Hazardous Substance Disposal Sites. This was done at the request
of the custodian agency.
ALL FILES PRIOR TO THE MARCH 29, 1996 VERSION WERE NAMED
SUPERFUND SITES. (SUPFND, OR NC.SUPFND)
2.) filename: hsds395 (previously named nc.supfnd695)
On June 21, 1995, the New Hanover County
landfill was moved approximately .5 mile south of the original
digitized location. The 1:24,000-scale Carolina Beach 7.5 Minute
series topographic map was affected. Coordinate information in
the PAT was altered.
1.) filename: hsds395 (previously named nc.supfnd)
March 1995 was the original release date for this file.
NC DEHNR - Divison of Waste Man, Superfund Section, 19981201, Hazardous Substance Disposal Sites: NC DEHNR - Divison of Waste Management, Superfund Section, Raleigh, North Carolina.Online Links:
- CGDB layer listing and Metadata - <http://www.cgia.state.nc.us/cgdb/index.html>
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 1980.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257.
| Range of values | |
|---|---|
| Minimum: | 0.000 |
| Maximum: | 10710605.000 |
| Units: | meters |
| Resolution: | .001 |
| Range of values | |
|---|---|
| Minimum: | 95.612 |
| Maximum: | 891394.875 |
| Units: | meters |
| Resolution: | 0.001 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 885 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 884 |
| Value | Definition |
|---|---|
| 1 | Federal site |
| 2 | State site |
Superfund Section id used internally
Superfund Section id used internally
| Range of values | |
|---|---|
| Minimum: | 75 32 22.965514 |
| Maximum: | 83 57 59.211296 |
| Range of values | |
|---|---|
| Minimum: | 33 56 31.194590 |
| Maximum: | 83 57 59.211296 |
| Range of values | |
|---|---|
| Minimum: | 514520.500 |
| Maximum: | 3032687.000 |
| Range of values | |
|---|---|
| Minimum: | 71431.450 |
| Maximum: | 1010982.000 |
Facility names are variable in length and number of words.
Superfund Section id used internally
Superfund Section id used internally
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 902 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 902 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 880 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 885 |
| Range of values | |
|---|---|
| Minimum: | 53.412 |
| Maximum: | 15395.658 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 913 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 32 |
PAT - Polygon Attribute Table
COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION
1 AREA 4 12 F 3 Total area in meters
5 PERIMETER 4 12 F 3 Total perimeter in meters
9 HSDS# 4 5 B - Poly internal id number
13 HSDS-ID 4 5 B - Poly user id number
17 CODE# 2 2 B - State or Federal
19 SIS# 15 15 C - Superfund id number
34 NCD# 15 15 C - Superfund id number
49 LONG 20 20 C - Longitude coordinate
69 LAT 20 20 C - Latitude coordinate
89 X-COORD 4 12 F 3 Stateplane x-coordinate
93 Y-COORD 4 12 F 3 Stateplane x-coordinate
97 COMPANY 80 80 C - Facility name
177 NONCD# 15 15 C - Superfund id number
192 SSF# 15 15 C - Superfund id number
This layer has an arc attribute table.
The items FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, HSDS#, and
HSDS-ID are computer generated defaults. A deductive estimate was used
to determine the attribute accuracy value.
AAT - Arc Attribute Table
COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION
1 FNODE# 4 5 B - From node identification number
5 TNODE# 4 5 B - To node identification number
9 LPOLY# 4 5 B - Left arc identification number
of polygon
13 RPOLY# 4 5 B - Right arc identification number
of polygon
17 LENGTH 4 12 F 3 Length of arc in coverage units
21 HSDS# 4 5 B - Internal identification number
25 HSDS-ID 4 5 B - User identification number
Div. of Waste Management Director, William L. MeyerSuperfund Section staff, Grover Nicholson
NC Dept. of Environment, Health, and Natural Resources
401 Oberlin Road, Suite 150
Raleigh, NC 27605-1350
NCCGIA Director, Karen Siderelis
Database Administration, Zsolt Nagy
Database Management, Ken Shaffer
Project Manager, David Giordano
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) 733-2801, extension 291 (voice)
(919) 733-4811 (FAX)
N/A
This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
NC DEHNR-Div of Waste Managemen, Superfund Section, 1994, Hazardous Substance Disposal Sites: NC DEHNR-Div of Waste Management, Superfund Section, Raleigh, North Carolina.
Survey, US Geological , 1938-1990, USGS 7.5 Minute series quadrangles: US Geological Survey, Reston, Virginia.
Person who carried out this activity:
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us
The Hazardous Substance Disposal Sites were originally supplied to NCCGIA by NC DEHNR-Div of Waste Management, Superfund Section with the locations delineated on USGS 1:24,000-scale 7.5 Minute series maps. The sites were digitized and attributed with a Superfund Section id number and a facility name, both of which were provided by the Superfund Section on the quad. Checkplots were made and overlayed on the USGS maps for review. Any necessary label corrections were made and new checkplots were run.
Site locations were marked on 7.5 Minute USGS topographic maps which match National Map Accuracy Standards, using a best estimate with reference to surrounding features. All sites digitized as points were given a 50 foot buffer, so it would be possible to include all sites in one coverage (points and polygons cannot exist in the same coverage).
These data represent the locations and identities of the Hazardous Substance Disposal Sites listed on both the National Priority List and the State Priority List as of June 21, 1995.
Using ESRI's Arc/Info GIS software, the data set was built for arc and polygon topology 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 form this data set should cite the following: The source of the Hazardous Substance Disposal 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.
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us
Hazardous Substance Disposal 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@cgia.state.nc.us ... 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@cgia.state.nc.us