Superfund Site Footprints

The Agency for Toxic Substances and Disease Registry (ATSDR) Hazardous Waste Site Polygon Data with CIESIN Modifications, Version 2 is a database providing georeferenced data for 1,572 National Priorities List (NPL) Superfund sites. These were selected from the larger set of the ATSDR Hazardous Waste Site Polygon Data, Version 2 data set with polygons from May 26, 2010. The modified data set contains only sites that have been proposed, currently on, or deleted from the final NPL as of December 31, 2010. Of the 2,080 ATSDR polygons from 2010, 1,575 were NPL sites but three sites were excluded - 2 in the Virgin Islands and 1 in Guam. The modified polygon database includes all the attributes for these NPL sites provided in the ATSDR GRASP Hazardous Waste Site Polygon database and selected attributes from the EPA List 9 Active CERCLIS sites and SCAP 12 NPL sites databases. These polygons represent sites considered for cleanup under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA or Superfund). The Geospatial Research, Analysis, and Services Program (GRASP, Division of Health Studies, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention) has created site boundary data using the best available information for those sites where health assessments or consultations have been requested.

The dataset was first obtained in response to a request by the National Institute of Environmental Health Sciences to conduct an assessment of populations living in proximity to NPL sites (NIEHS, HHSN273200800139P). The updated database presented here was incorporated into the Innovative Methodologies & Mapping to Assess Vulnerable Populations Near SF Sites project (NIEHS, 3 P42 ESO10239-09 GOL).

Disclaimers

The Geospatial Research, Analysis, and Services Program (GRASP, Division of Health Studies, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention) has created site boundary data using the best available information for those sites where health assessments or consultations have been requested. GRASP in no way guarantees that the data is complete, accurate, or without defect. The user of the data must evaluate whether or not the data may be effectively employed for the purposes of the user. GRASP in no way guarantees the accuracy of the boundaries and should not be held responsible in any way for products created or decisions made based on the extent of said boundaries.

CIESIN follows procedures designed to ensure that data, information, and tools residing at CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent misstatements, they should contact SEDAC User Services.

Archived Data Sets

The following archived data set (Version 1) that was used for the ATSDR Hazardous Waste Site Polygon Data, v1 (1996) is available from SEDAC User Services upon request:  Agency for Toxic Substances and Disease Registry (ATSDR) Hazardous Waste Site Polygon Data, 1996.