Vapor Intrusion Facility Boundary Polygons (Approximate Extent of Contamination), South Bay CA, 2014, US EPA Region 9
Theses polygons represent the approximate extent of contamination for Vapor Intrusion facilities. Polygons for non-Federal Facility sites were updated in January, 2007 for the Superfund Work Load Models project. Each polygon was approved by the site RPM. Where available, the majority of these polygons represent the …