Asbestos concentration in soil was as high as 40 percent

The findings from the October 2000 and March 2001 sampling events triggered a more intensive sampling investigation. Sampling was conducted by EPA’s Removal Support Team (RST) in August 2001.

All samples were analyzed by California Air Resources Board (CARB) 435 PLM methodology, and a select portion were analyzed by TEM methods. Samples were not collected in areas of asphalt or concrete pads.

Approximately 25% of the grid locations have concentrations of asbestos greater than or equal to 1%. A majority of the elevated readings (1% - 40%) are concentrated on the eastern portion of the property.