1. EPA Vapor Intrusion Update
Former NAS Moffett Field
Restoration Advisory Board Meeting
September 8, 2011
Alana Lee
EPA R i 9
Region
Lee.Alana@epa.gov

2. Vapor Intrusion Study Area – Moffett Field Area and MEW Area

3. Estimated Extent of Regional TCE Shallow Groundwater
Plume

5. Sampling Status of “Unsampled” Buildings -
Moffett Field Area - North of Highway 101
12 Currently Occupied Buildings 12 Currently Occupied
Sampled by MEW – July 2011 Buildings To Be Sampled by
NASA – Sept/October 2011
23 569 N144
48 583C
N212
146 583A
N213
503 583B
N240
543 596
N245
554 944
T20G
Building –Specific Indoor Air
Sampling Reports – Sept 13, 2011
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6. Implementation of Vapor Intrusion Remedy
- Progress and Schedule
• EPA Statement of Work – Remedial Design & Remedial
Action Work Requirements & Schedule - August 2011
includes Building-specific and Site-wide Work Plans,
Sampling, Long-term Operations, Monitoring, and
Maintenance,
Maintenance Institutional Controls, Reporting
Controls
• Amended Consent Decree to DOJ – Sept 2011
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• Amended 106 Order - Sept 2011
• Sit
Site-wide Sampling Work Plan to Determine Response
id S li W k Pl t D t i R
Action Tier - Sept 29, 2011
• Upcoming Sampling and reporting – Sept 2011 on
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7. For More Information - Websites
NASA:
environment.arc.nasa.gov/reports/vapor.html
environment arc nasa gov/reports/vapor html
environment.arc.nasa.gov/maps/vapor.html
EPA:
www.epa.gov/region9/mew
www.epa.gov/region9/moffettfield
www.epa.gov/oswer/vaporintrusion/
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