Site Sampling Along RFS/Zeneca Property Boundary Scheduled fo the Week of October 9, 2006

October 5, 2006

Zeneca, through its environmental consultant LFR, plans to sample groundwater along the property boundary between the former Zeneca site and the RFS during the week of October 9. The work is being done according to a Field Sampling Activities Plan and Revision Letter Zeneca has submitted to the Department of Toxics Substances Control. This plan summarizes activities to collect groundwater samples to determine the extent to which chemicals detected in groundwater at the Zeneca site may have entered the groundwater beneath the RFS. LFR plans to collect samples from twelve locations on the RFS side of the fenceline. Equipment will be on the RFS for approximately three days. Air monitoring will be conducted continuously during these activities with results posted on this website as they become available from LFR. Previous air sampling by EH&S for the compounds of concern in Building 478 has not shown that contaminants are moving from groundwater into the air in Building 478.