{
"name":"NCDOTApp_ESM/NCDOT_HazardousSpillBasinLine",
"title":"NCDOTApp_ESM/NCDOT_HazardousSpillBasinLine",
"type":"Map Service",
"typeKeywords":["ArcGIS Server","Service","Map Service"],
"description":"NCDOT is required to include Hazardous Spill Basins on projects based upon the guidelines. The basic requirements for the Basins are the following:  Applicable Locations Basins will be provided at stream crossings on highways functionally classified as a rural or urban arterials and,    1. The stream (1) is identified as an Outstanding Resource Water (ORW) or a WS-I watersupply, or  2. The stream (1) crossing is within 1/2 mile of the critical area (2) of a water supply source classified as WS-II, WS-III and WS-IV.    (1) For the purpose of these guidelines \"stream\" will be defined as those depicted as blue lines on 7-1/2 minute (1:24000 scale) United States Geological Survey (USGS) quadrangles.   (2) Critical area is defined as extending 1/2 mile from the normal pool elevation of a reservoir; or 1/2 mile upstream of , and draining to an intake. This would make the effective area for hazardous spill basins placement, within 1.0 mile of the normal pool or upstream of an intake.   To Develop a HSB coverages that identifies the potential need for an HSB, the following data sources are identified as needed:   HYAR (24K Hydrography Line - Classified)  HYARUT (24K Hydrography Line - Unnamed Trib) HYPL (24K Hydrography PolyLine - Classified)  HYPLUT (24K Hydrography PolyLine - Unnamed)  HQORWDWQ (Includes ORW and WS_I and WS_II WSW) WSW (Water Supply Watersheds)  SWI (Surface Water Intakes)   This data set contains all finalized stream segments identified as HSB stream line segments. Latest Publication Date: 03/15/2026 : 17:45",
"extent":[[1586444.6200535367,2213453.9964900804],[228691.00375750219,762877.5116940062]],

"url":"https://gis11.services.ncdot.gov/arcgis/rest/services/NCDOTApp_ESM/NCDOT_HazardousSpillBasinLine/MapServer"
}