Line features representing water main locations for Chatham County, NC water systems.Chatham GIS SOP: "MAPSERV-121"

This feature class contains line features representing two-foot changes in elevation throughout Chatham County, NC. It is sourced from Quality Level 2 lidar data provided by the North Carolina Department of Public Safety Floodplain Mapping Program. LASD datasets were created referencing the tiled lidar data. Subsets were built using classified ground and water returns. Raster Digital Elevation Models (DEMs) were built by binning the points and averaging elevation values within 15 m x 15 m cells. The resulting DEMs were mosaicked to a contiguous ground elevation raster covering the entire county. Areas without ground point coverage that are covered by water bodies were patched by using DEMs derived from binned water elevation values. Contour lines were derived from the contiguous, patched DEM at various contour intervals.

Polygon features delineating the municipal boundaries in Chatham County, NC.Chatham GIS SOP: "MAPSERV-22"

Line features that represent the boundaries of parcels within Chatham County, NC. The parcel lines feature class is maintained by the Chatham County GIS & Tax departments and is updated on a daily basis.Chatham GIS SOP: "MAPSERV-31"

Annotation feature class that provides labels for property boundary lengths and acreage of parcels in Chatham County, NC. This service also provides annotation for easements in the Chatham County parlines feature class.

The annotation feature class is maintained by the Chatham County GIS & Tax departments and is updated on a daily basis.Chatham GIS SOP: "MAPSERV-163"

Polygon features delineating law response zones in Chatham County, NC.

Data is maintained by the Chatham County E-911 addressing specialist for use in emergency operations.Chatham GIS SOP: "MAPSERV-11"

Line features representing approximate pipeline locations in Chatham County, NC and surrounding counties. The main purpose of this dataset is to provide a visual display of said pipeline locations for critical infrastructure and emergency response planning. The NPMS is a geographic information system (GIS) dataset containing the location and selected attributes of the major gas transmission and hazardous liquid transmission pipelines, and liquefied natural gas (LNG) plants operating in United States and other offshore entities. Effective October 1, 2015 pipeline and LNG plant data is contributed annually by pipeline operators as required by the Pipeline Safety: Miscellaneous Changes to Pipeline Safety Regulations (http://www.regulations.gov/#!documentDetail;D=PHMSA-2010-0026-0054). This metadata is for the entire national dataset.Distribution of NPMS data is handled for PHMSA by the National Repository and is limited to pipeline operators and local, state, and federal government officials. Neither the United States Government nor any party involved in the creation and compilation of NPMS data and maps guarantees the accuracy or completeness of the products. NPMS data has a target accuracy of +/- 500 feet and resides in geographic coordinates. NPMS data must never be used as a substitute for contacting the appropriate local one-call center prior to digging.Chatham GIS SOP: "MAPSERV-76"

Polygon features representing different land cover classifications within Chatham County, NC. The source and currency of the data is unknown, but likely came from a state or federal agency.Chatham GIS SOP: "MAPSERV-102"

Line features representing existing and proposed fiber lines (buried & aerial) owned by Chatham County MIS in Chatham County, NC. These fiber lines are utilized for the NC811 notification system that Chatham County MIS participates in.

The buried fiber line features are utilized to create a buffer polygon that is imported into NC811's notification system serving as the basis for all Chatham County MIS notifications. The original data was collected by Performance Cabling using industry standard GPS collection methods. The data was delivered to Chatham County MIS / GIS in May of 2015. The data was imported into the ChathamGIS SQL database in August 2015 and stored in the "infrastructure" dataset.

The ongoing data updates and maintenance will be conducted by Chatham County GIS in collaboration with Performance Cabling on an as needed basis.Chatham GIS SOP: "MAPSERV-74"

This feature class contain mile marker points for US Highways located within Chatham County, NC. It also contains mile marker points for Jordan Lake. These point features are utilized within emergency response mapping operations and the data is maintained by the Chatham County E-911 Addressing Specialist.Chatham GIS SOP: "MAPSERV-12"

Polygon features delineating the Chatham County, NC watershed district boundaries. This feature class is primarily utilized to show the boundaries as reference on map layouts and for permitting specific issues in the planning department.Chatham GIS SOP: "MAPSERV-115"

Polygon features representing the fire tax districts in Chatham County, NC.Chatham GIS SOP: "MAPSERV-25"

Polygons that represent the boundary or management area for significant facilities in a community. Examples include schools, government facilities, stadiums, casinos, and fire stations. Additional information about each Facility can be organized in to seperate tables and related to these locations using the FacilityID key. The feature classification and type schema for the facility sites grew out of work with the Department of Homeland Security's HSIP Program and has evolved to support a diverse set of facilities inventoried for a variety of uses by a local government. This feature class is utilized in the development and maintenance of the Chatham County, NC basemaps.Chatham GIS SOP: "MAPSERV-94"

This feature class contains point features marking US Highway exit on and off ramps within Chatham County, NC. There are exit points located along US HWY 64, US HWY 421, and US HWY 1. The data is maintained by the Chatham County E-911 Addressing Specialist and utilized in emergency response mapping applications.Chatham GIS SOP: "MAPSERV-10"

The tax parcel neighborhood boundaries for Chatham County, NC. The assessment neighborhoods are used by assessors to organize properties with similar characteristics.

The assessment neighborhoods are used by assessors to organize properties with similar characteristics. The "AKNECD" code from the AS400 tax database is used to group Chatham County parcels into the tax neighborhoods depicted in this feature class.Chatham GIS SOP: "MAPSERV-26"

This feature class includes driveways within Chatham County, NC utilized in emergency dispatch mapping and other applications. The feature class is maintained by the Chatham County E-911 Addressing Specialist.Chatham GIS SOP: "MAPSERV-5"

Polygon features representing waterbodies in Chatham County, NC. This feature class contains all waterbody polygons in Chatham County, NC. A smaller, more refined dataset of just the major waterbodies in Chatham County exists in the reference dataset within the Chatham County enterprise GIS database.Chatham GIS SOP: "MAPSERV-100"

Line features that represent special line types pulled from surveys, historical documents, etc. within parcels located in Chatham County, NC. This service only includes lines tagged as various types of easements.

The parlines feature class is maintained by the Chatham County GIS & Tax departments and is updated on a daily basis.Chatham GIS SOP: "MAPSERV-33"

NCDOT Bridge points in Chatham County, NC.Chatham GIS SOP: "MAPSERV-73"

This feature class contains emergency service number (ESN) response zones within Chatham County, NC. These zones are created by identifying unique emergency response zones in Chatham County utilizing the fire, EMS, and law response zones as source data. Each zone has a unique set of responder attributes. The data is maintained by the Chatham County E-911 Addressing Specialist and utilized in emergency response mapping applications.Chatham GIS SOP: "MAPSERV-7"