NC DENR Division of Environment, Public Water Supply Section (PWSS), 20060901, Public Water Supply Water Sources, Including Ground Water and Surface Water Sources: NC DENR Division of Environmental Health, Public Water Supply Section, 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.
| Range of values | |
|---|---|
| Minimum: | 0.000 |
| Maximum: | 0.000 |
| Units: | meters |
| Resolution: | .001 |
| Range of values | |
|---|---|
| Minimum: | 0.000 |
| Maximum: | 0.000 |
| Units: | meters |
| Resolution: | 0.001 |
Identification numbers vary in value
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 4410 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 4410 |
Unique identification numbers vary
Capacity numbers vary in value.
Unique identification numbers vary
Unique identification names vary
| Value | Definition |
|---|---|
| S | Surface Water Source |
| G | Ground Water Source |
| Y | Combination of both ground and surface source |
PWS type descriptions vary in length and description.
PWS type names vary in length and description.
Source names vary in length and number of words.
| Value | Definition |
|---|---|
| E | Emergency availability |
| O | Other type of availability |
| P | Permanent availability |
Location descriptions vary in length and number of words.
| Value | Definition |
|---|---|
| M | Mapped |
| C | Post Processed GPS, unknown number of GPS positions |
| D | Post Processed GPS from inspection form |
| E | Post Processed GPS less than 120 GPS positions |
| F | Post Processed GPS greater than 120 GPS positions |
| G | GPS, post process pending, unknown number of GPS positions |
| H | GPS, post process pending, less than 120 GPS positions |
| I | GPS, post process pending, greater than 120 GPS positions |
| O | Other type of location method, GPS pending |
| S | Surveyed |
| Value | Definition |
|---|---|
| L | Low Well Integrity Rating |
| M | Medium Well Integrity Rating |
| H | High Well Integrity Rating |
| Value | Definition |
|---|---|
| WS-I | Waters used as sources of water supply for drinking, culinary, or food processing purposes for those users desiring maximum protection for their water supplies. These waters are also protected for Class C uses. WS-I waters are those within natural and undeveloped watersheds in public ownership with no permitted point source (wastewater) discharges. All WS-I waters are HQW by definition. |
| WS-II | Waters used as sources of potable water where a WS-I classification is not feasible. These waters are also protected for Class C uses. WS-II waters are generally in predominantly undeveloped watersheds and only general permits for discharges are allowed. All WS-II waters are HQW by definition. |
| WS-III | Waters used as sources of potable water where a more protective WS-I or II classification is not feasible. These waters are also protected for Class C uses. WS-III waters are generally in low to moderately developed watersheds. General discharge permits only are allowed near the water supply intake whereas domestic and nonprocess industrial discharges are allowed in the rest of the water supply watershed. |
| WS-IV | Waters used as sources of potable water where a WS-I, II or III classification is not feasible. These waters are also protected for Class C uses. WS-IV waters are generally in moderately to highly developed watersheds or Protected Areas, and involve no categorical restrictions on discharges. |
| WS-V | Waters protected as water supplies which are generally upstream and draining to Class WS-IV waters or waters used by industry to supply their employees with drinking water or as waters formerly used as water supply. These waters are also protected for Class C uses. WS-V has no categorical restrictions on watershed development or wastewater discharges unlike other WS classifications and local governments are not required to adopt watershed protection ordinances. |
| Value | Definition |
|---|---|
| H | High Raw Water Quality Rating |
| M | Medium Raw Water Quality Rating |
| L | Low Raw Water Quality Rating |
| Value | Definition |
|---|---|
| Class 1 | The surface water intake is located in a small water supply reservior. |
| Class 2 | The surface water intake is located in a small water supply reservior. |
| Class 3 | The surface water intake is located in a large multi-purpose water supply reservior. |
| Direct Stream | The surface water intake is located in stream. |
Yield values varies in number.
| Value | Definition |
|---|---|
| HC | Ground water sources within the coastal plain with a depth value greater than 180 feet. |
| SC | Ground water sources within the coastal plain with a depth value between 70 and 180 feet. |
| UC | Ground water sources within the coastal plain with a depth value less than or equal to 70 feet. |
Depth values vary in number.
Recharge values vary in number.
| Value | Definition |
|---|---|
| H | High Aquifer Rating |
| M | Medium Aquifer Rating |
| L | Low Aquifer Rating |
| Value | Definition |
|---|---|
| Spring | A custom delineated assessment area was created because the source is a spring |
| GWUDI | A custom delineated assessment area was created because the source is Ground Water Under Direct Influence of surface water |
| Value | Definition |
|---|---|
| Adjacent | An adjacent water system is a type of community water system that has two or more systems that are adjacent and are owned or operated by the same supplier of water, and together serve 15 or more connections or 25 or more persons. Examples of adjacent water systems are two mobile home parks that together meet the community water system definition. |
| Campground | A campground water system is a type of community water system that serves 15 or more connections and is not serving 25 or more of the same persons more than 6 months per year. In addition to campgrounds these water systems include travel trailer parks, and marinas. |
| Community | A community water system serves 15 or more service connections or regularly serves at least 25 year-round residents |
| Non-TransientNon-Community | A public water system that is not a community water system and regularly serves 25 of the same persons for at least 6 months a year. |
| TransientNon-Community | A non-community water system that does not regularly serve 25 of the same persons over six months per year. |
Connection values vary in number.
Population values vary in number.
System names vary in length and name.
Road directions vary in length and description.
Road directions vary in length and description.
Addresses vary in length and description.
City names vary in length and description.
State names vary in length and description.
Zip codes vary in length and description.
Zip codes vary in length and description.
County names vary in length and description.
Owner names vary in length and description.
Owner addresses vary in length and description.
Owner addresses vary in length and description.
Owner addresses vary in length and description.
Owner addresses vary in length and description.
Owner addresses vary in length and description.
Owner addresses vary in length and description.
Names vary in length and description.
Addresses vary in length and description.
Addresses vary in length and description.
Addresses vary in length and description.
Addresses vary in length and description.
Addresses vary in length and description.
Addresses vary in length and description.
Phone numbers vary in value.
Capacity numbers vary in value.
Capacity numbers vary in value.
Capacity numbers vary in value.
NC Dept. of Environment and Natural Resources, Division of Environmental Health, Public Water Supply Section NC Dept. of Environment and Natural Resources, Center for Geographic Information and Analysis
919-715-3224 (voice)
919-715-4374 (FAX)
robert.midgette@ncmail.net
These data were created for North Carolina's Source Water Assessment Program and to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
NC DENR - Div. of Environmental, Public Water Supply Section, 2006, Public Water Supply Wells: NC DENR - Div. of Environmental Health, Public Water Supply Section, Raleigh, North Carolina.
Person who carried out this activity:
919-715-3224 (voice)
919-715-4374 (FAX)
robert.midgette@ncmail.net
The well locations were collected with Trimble GeoExplorer using data dictionary developed by PWSS which allowed field input of system id, well id, distance and direction to well, etc. during the collection of satellite readings. Following conversion to tabular text, cross-checking with the existing database and editing were made.
Well locations were differentially corrected using base station files, which resulted in positions within 2m to 5m of the actual positions.
These GPS derived locations are obtained incidental to routine water system inspections, sanitary surveys, and site visits. The locating of the public water supply sources is the first step in wellhead protection. Accurately locating PWS sources will enable other divisions/agencies to determine what potentially harmful activities are within specified distances of these wells.
Using Trimble's Pathfinder software, the data from GPS units were differentially corrected and converted to GIS format to be used with ESRI's ArcGIS software.
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 this GIS data layer for Public Water Supply Sources 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@ncmail.net
Public Water Supply Water Sources, Including Ground Water and Surface Water Sources
NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible 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 without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by 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) 715-3224 (voice)
(919) 715-4374 (FAX)
robert.midgette@ncmail.net