EPA Environmental Dataset Gateway
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United States Environmental Protection Agency
National Priorities List (NPL) Site Points, Region 9, 2012, US EPA Region 9
NPL site POINT locations for the US EPA Region 9. NPL (National Priorities List) sites are hazardous waste sites that are eligible for extensive long-term cleanup under the Superfund program. Eligibility is determined by a scoring method called Hazard Ranking System. Sites with high scores are listed on the NPL. The majority of the locations are derived from polygon centroids of digitized site boundaries. The remaining locations were generated from address geocoding and digitizing. Area covered by this data set include Arizona, California, Nevada, Hawaii, Guam, American Samoa, Northern Marianas and Trust Territories. Attributes include NPL status codes, NPL industry type codes and environmental indicators. Related table, NPL_Contaminants contains information about contaminated media types and chemicals. This is a one-to-many relate and can be related to the feature class using the relationship classes under the Feature Data Set ENVIRO_CONTAMINANT.
This data is specifically designed for use with ArcGIS and related extensions. This data is useful for general mapping, analysis and web mapping applications.
Time Period of Content
West Bounding Longitude:
East Bounding Longitude:
North Bounding Latitude:
South Bounding Latitude:
Each point is a general representation of a facility or a contaminated area. This data set is best used for small scale general mapping. It is not suitable for site specific or detailed mapping.
Environment and Conservation
US Environmental Protection Agency Region 9
mailing and physical address
Metadata Reference Information
Metadata Date Stamp:
Metadata Standard Name:
FGDC Content Standards for Digital Geospatial Metadata
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