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EPA Vapor Intrusion Update
Former NAS Moffett FieldFormer NAS Moffett FieldRestoration Advisory Board Meeting
September 8, 2011
Alana LeeEPA R i 9EPA Region 9
Lee.Alana@epa.gov
Vapor Intrusion Study Area – Moffett Field Area and MEW Area
Estimated Extent of Regional TCE Shallow Groundwater Plume
Sampling Status of “Unsampled” Buildings -Moffett Field Area - North of Highway 101
12 Currently Occupied Buildings To Be Sampled by
12 Currently Occupied Buildings Sampled by MEW July 2011
23 569
Buildings To Be Sampled by NASA – Sept/October 2011
Sampled by MEW – July 2011
N14423 56948 583C
146 583A
N144
N212146 583A503 583B543 596
N213
N240543 596554 944
N245
T20G
5
T20GBuilding –Specific Indoor Air Sampling Reports – Sept 13, 2011
Implementation of Vapor Intrusion Remedy - Progress and Schedule
• EPA Statement of Work – Remedial Design & Remedial Action Work Requirements & Schedule - August 2011Action Work Requirements & Schedule August 2011includes Building-specific and Site-wide Work Plans,Sampling, Long-term Operations, Monitoring, and Maintenance Institutional Controls ReportingMaintenance, Institutional Controls, Reporting
• Amended Consent Decree to DOJ – Sept 2011p• Amended 106 Order - Sept 2011
Sit id S li W k Pl t D t i R• Site-wide Sampling Work Plan to Determine Response Action Tier - Sept 29, 2011
6
• Upcoming Sampling and reporting – Sept 2011 on
For More Information - Websites
NASA: environment arc nasa gov/reports/vapor htmlenvironment.arc.nasa.gov/reports/vapor.html environment.arc.nasa.gov/maps/vapor.html
EPA: www.epa.gov/region9/mewwww.epa.gov/region9/mewwww.epa.gov/region9/moffettfieldwww.epa.gov/oswer/vaporintrusion/ p g p
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