The North Carolina Department of Environment and Natural Resources, Division of Environmental Health, Public Water Supply Section in cooperation with the NC Center for Geographic Information and Analysis, has developed the geographic data to provide accurate location of public water supply system sources in North Carolina.
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).
Revisions and updates to this layer include: 1) The 03/02/04 version was the first released version of this data. 2) The 05/12/05 version is un updated version of this data.
Data creation and revision dates
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.
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Division of Environmental Health, Public Water Supply Section Chief, Jessica G. Miles, Staff: Robert Midgette, Supervisor of Source Water Assessment Program Parker Lincoln Building, 2728 Capital Blvd, Raleigh, NC 27604 NCCGIA Director, Timothy R. Johnson GIS Coordinator, Zsolt Nagy Database Administrator, David Giordano Project Manager, Jeffrey Brown North Carolina Center for Geographic Information and Analysis, 301 N. Wilmington St., Suite 700, Raleigh, NC 27699-0322
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.
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.
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.
Well locations were differentially corrected using base station files, which resulted in positions within 2m to 5m of the actual positions.
Locations of sites and facility names supplied by Public Water Supply Section
PWSS regions' GPS rover units data were transferred to DEH server. Well locations were calculated by using Pathfinder software and base station files. The data were then converted to tabular text form so they could be imported into ArcGIS software for visual inspection purpose. The data were reviewed and necessary corrections made.
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Dataset copied.
Feature geometry.
ESRI
PWS Type Name
NC DENR-Division of Environmental Health, Public Water Supply Section
Feature geometry.
ESRI
Internal Identification Number
ESRI
Point internal identification number
Software computed
Unique 7-digit identification number for PWS system
NC DENR-Division of Environmental Health, Public Water Supply Section
EPA Source Identification Number
NC DENR-Division of Environmental Health, Public Water Supply Section
Owner Location Code
NC DENR-Division of Environmental Health, Public Water Supply Section
PWS Source Type
NC DENR-Division of Environmental Health, Public Water Supply Section
Surface Water Source
NC DENR-Division of Environmental Health, Public Water Supply Section
Ground Water Source
NC DENR-Division of Environmental Health, Public Water Supply Section
Combination of both ground and surface source
NC DENR-Division of Environmental Health, Public Water Supply Section
Source Name
NC DENR-Division of Environmental Health, Public Water Supply Section
Source Availability
NC DENR-Division of Environmental Health, Public Water Supply Section
Emergency availability
NC DENR-Division of Environmental Health, Public Water Supply Section
Other type of availability
NC DENR-Division of Environmental Health, Public Water Supply Section
Permanent availability
NC DENR-Division of Environmental Health, Public Water Supply Section
Source Location Description
NC DENR-Division of Environmental Health, Public Water Supply Section
The method used to locate the source
NC DENR-Division of Environmental Health, Public Water Supply Section
Mapped
NC DENR-Division of Environmental Health, Public Water Supply Section
Post Processed GPS, unknown number of GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
Post Processed GPS from inspection form
NC DENR-Division of Environmental Health, Public Water Supply Section
Post Processed GPS less than 120 GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
Post Processed GPS greater than 120 GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
GPS, post process pending, unknown number of GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
GPS, post process pending, less than 120 GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
GPS, post process pending, greater than 120 GPS positions
NC DENR-Division of Environmental Health, Public Water Supply Section
Other type of location method, GPS pending
NC DENR-Division of Environmental Health, Public Water Supply Section
Surveyed
NC DENR-Division of Environmental Health, Public Water Supply Section
Well integrity rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Low Well Integrity Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Medium Well Integrity Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
High Well Integrity Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Water Supply Watershed Classification for Surface Water
NC DENR-Division of Environmental Health, Public Water Supply Section
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.
NC DENR-Division of Water Quality
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.
NC DENR-Division of Water Quality
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.
NC DENR-Division of Water Quality
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.
NC DENR-Division of Water Quality
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.
NC DENR-Division of Water Quality
Raw Water Quality Rating for Surface Water
NC DENR-Division of Environmental Health, Public Water Supply Section
High Raw Water Quality Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Medium Raw Water Quality Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Low Raw Water Quality Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Intake Location for Surface Water
NC DENR-Division of Environmental Health, Public Water Supply Section
The surface water intake is located in a small water supply reservior.
NC DENR-Division of Environmental Health, Public Water Supply Section
The surface water intake is located in a small water supply reservior.
NC DENR-Division of Environmental Health, Public Water Supply Section
The surface water intake is located in a large multi-purpose water supply reservior.
NC DENR-Division of Environmental Health, Public Water Supply Section
The surface water intake is located in stream.
NC DENR-Division of Environmental Health, Public Water Supply Section
Well Yield for Ground Water Sources
NC DENR-Division of Environmental Health, Public Water Supply Section
Degree of Confinement
NC DENR-Division of Environmental Health, Public Water Supply Section
Ground water sources within the coastal plain with a depth value greater than 180 feet.
NC DENR-Division of Environmental Health, Public Water Supply Section
Ground water sources within the coastal plain with a depth value between 70 and 180 feet.
NC DENR-Division of Environmental Health, Public Water Supply Section
Ground water sources within the coastal plain with a depth value less than or equal to 70 feet.
NC DENR-Division of Environmental Health, Public Water Supply Section
The depth of the well given in feet
NC DENR-Division of Environmental Health, Public Water Supply Section
The aquifer recharge rate
NC DENR-Division of Environmental Health, Public Water Supply Section
Aquifer Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
High Aquifer Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Medium Aquifer Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Low Aquifer Rating
NC DENR-Division of Environmental Health, Public Water Supply Section
Delineation Type
NC DENR-Division of Environmental Health, Public Water Supply Section
A custom delineated assessment area was created because the source is a spring
NC DENR-Division of Environmental Health, Public Water Supply Section
A custom delineated assessment area was created because the source is Ground Water Under Direct Influence of surface water
NC DENR-Division of Environmental Health, Public Water Supply Section
The type of PWS system
NC DENR-Division of Environmental Health, Public Water Supply Section
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.
NC DENR-Division of Environmental Health, Public Water Supply Section
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.
NC DENR-Division of Environmental Health, Public Water Supply Section
A community water system serves 15 or more service connections or regularly serves at least 25 year-round residents
NC DENR-Division of Environmental Health, Public Water Supply Section
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.
NC DENR-Division of Environmental Health, Public Water Supply Section
A non-community water system that does not regularly serve 25 of the same persons over six months per year.
NC DENR-Division of Environmental Health, Public Water Supply Section
Number of connections to distribution system
NC DENR-Division of Environmental Health, Public Water Supply Section
Population served by the PWS system
NC DENR-Division of Environmental Health, Public Water Supply Section
PWS system name
NC DENR-Division of Environmental Health, Public Water Supply Section
Road directions to system
NC DENR-Division of Environmental Health, Public Water Supply Section
Additional road directions to system
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of office
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of office - City
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of office - State
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of office - + 4 zip
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of office - Zip code
NC DENR-Division of Environmental Health, Public Water Supply Section
County of PWS System
NC DENR-Division of Environmental Health, Public Water Supply Section
Name of Owner
NC DENR-Division of Environmental Health, Public Water Supply Section
PWS owner type
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of Owner
NC DENR-Division of Environmental Health, Public Water Supply Section
Secondary owner address
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of owner - City
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of Owner - State
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of Owner - Zip code
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of Owner - Zip + 4
NC DENR-Division of Environmental Health, Public Water Supply Section
Person designated by owner to receive non billing information e.g violations
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of responsible person
NC DENR-Division of Environmental Health, Public Water Supply Section
Secondary address for responsible person
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of responsible person - City
NC DENR-Division of Environmental Health, Public Water Supply Section
Responsible person address - State
NC DENR-Division of Environmental Health, Public Water Supply Section
Address of responsible person - Zip Code
NC DENR-Division of Environmental Health, Public Water Supply Section
Responsible person address - Zip Code + 4
NC DENR-Division of Environmental Health, Public Water Supply Section
Work phone for responsible person
NC DENR-Division of Environmental Health, Public Water Supply Section
Average production capacity of system
NC DENR-Division of Environmental Health, Public Water Supply Section
Design production capacity of system
NC DENR-Division of Environmental Health, Public Water Supply Section
Emergency production capacity of system
NC DENR-Division of Environmental Health, Public Water Supply Section
Maximum production capacity of system
NC DENR-Division of Environmental Health, Public Water Supply Section
PWS Type Description
NC DENR-Division of Environmental Health, Public Water Supply Section
Internal feature number.
ESRI
The attributes were supplied by the Public Water Supply Section of the Division of Environmental Health relating to system type, source and system name, size, location, population served, responsible party and owner information, and contact information. COL ITEM_NAME DESCRIPTION 1 FID Internal feature number. 2 shapeSrc Internal feature number. 3 OBJECTID Internal feature number. 4 SOURCEID Internal feature number. 5 PWS_ID Unique 7-digit identification number for PWS system 6 EPA_SRC_ID EPA Source Identification Number 7 OWN_LOC_CO Owner Location Code 8 SRC_TYPE PWS Source Type 9 SRC_NAME Source Name 10 SRC_AVL Source Availability 11 SRC_LOCATI Source Location 12 LOCN_DTRM Method Used to Locate the Source 13 WELL_I_RAT Well Integrity Rating 14 WSWCLASS Water Supply Watershed Classification 15 RWQ_RATE Raw Water Quality Rating 16 INTK_LOC Intake Location 17 YIELD_GPM Well Yield 18 DEG_CONF Degree of Confinement 19 DEPTH Well Depth 20 RECHRATE Aquifer Recharge Rate 21 AQRATE Aquifer Rating 22 DELN_TYPE Delineation Type 23 PWS_Type Public Water Supply System Type 24 RTL_NBR_CN Number of connections to distribution system 25 RTL_POP Population served by the PWS system 26 SYSTEM_NAM PWS system name 27 DESCRIPT_1 Road directions to system 28 DESCRIPT_2 Additional Road directions to system 29 LOC_ADDR1 Address of office 30 LOC_CITY Address of office - City 31 LOC_STATE Address of office - State 32 LOC_ZIP2 Address of office - +4 zip 33 LOC_ZIP1 Address of office - Zip code 34 COUNTY County of PWS System 35 Owner Owner Name 36 Ownr_Type Owner Type 37 Ownr_ADDR1 Owner Address 38 Ownr_ADDR2 Additional owner address 39 Ownr_CITY Owner address - City 40 Ownr_ST Owner address - State 41 Ownr_ZIP1 Owner address zip code 42 Ownr_ZIP2 Owner address - +4 zip 43 RESPON_PRS Responsible Person 44 RP_ADDR1 Responsible Person Address 45 RP_ADDR2 Additional Responsible Person Address 46 RP_CITY Responsible Person Address - City 47 RP_ST Responsible Person Address - State 48 RP_ZIP1 Responsible Person Address - Zip Code 49 RP_ZIP2 Responsible Person Address - +4 Zip 50 RP_WPHONE Responsible Person Work Phone 51 PRDTN_CAPT Average Production capacity of system 52 PRDTN_CA_1 Design production capacity of system 53 PRDTN_CA_2 Emergency production capacity of system 54 PRDTN_CA_3 Maximum production capacity of system 55 PWSTypeDes PWS System type description 56 PWSTypeNam PWS System type name
None
301 North Wilmington Street, Suite 700
Phone and electronic mail preferred
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.
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.
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