FINAL SAMPLING AND ANALYSIS PLAN - Documents for Moffett Field
FINAL SAMPLING AND ANALYSIS PLAN - Documents for Moffett Field
FINAL SAMPLING AND ANALYSIS PLAN - Documents for Moffett Field
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• Removal of Lighting, Power, and Communication Systems: All lighting, power,<br />
distribution, and communication systems will be removed from the interior of the<br />
hangar with the exception of power to the North Clamshell doors, the Federal<br />
Aviation Administration (FAA) Obstruction Lights and Airfield Beacon, the sump<br />
pump, and star, and surrounding buildings that receive their power from Hangar 1<br />
electric vault. Greater detail is provided in the Work Plan.<br />
• Pressure Washing and Removal of Siding: Once interior demolition is complete,<br />
AMEC will pressure wash and coat all accessible steel in the hangar while the<br />
exterior siding is still in place. AMEC will then remove the siding systematically<br />
from south to north, dividing the area into zones. Greater detail is provided in the<br />
Work Plan.<br />
• Replacement of Structural Steel Members: An AMEC structural engineer licensed<br />
in Cali<strong>for</strong>nia will per<strong>for</strong>m an inspection of the structure after interior demolition is<br />
complete. At that time, specifications and drawings will be prepared to define the<br />
location and type of repairs needed. Repairs will be made by a qualified steel<br />
erector and inspected by an AMEC engineer.<br />
• Segregation, Classification, and Disposal of Waste: Waste streams generated<br />
during the demolition activities will be characterized and disposed at the selected<br />
disposal facility. Spent wash water generated during the wash-down of the hangar<br />
interior, hangar concrete floor, and stormwater trench/conveyance system will be<br />
treated onsite and discharged to the Sunnyvale POTW. All waste will be handled<br />
per the Waste Transportation and Disposal Plan included in the Work Plan.<br />
• Coating Remaining Structure: The remaining structure will be coated with an<br />
epoxy coating system. Greater detail is provided in the Work Plan.<br />
• Implementation of Measures to Abate Bird Strike and Animal Hazards: AMEC will<br />
implement the recommended abatement measures during construction and will<br />
make recommendations <strong>for</strong> changes to <strong>Moffett</strong> <strong>Field</strong>’s Biological Hazards<br />
Abatement Plan (BHAP) plan based upon the final configuration of Hangar 1.<br />
Greater detail will be provided in the Biological Hazard Abatement Plan.<br />
• Post-construction confirmation samples will be collected after the removal<br />
activities are complete: Soil samples will be collected from the same sample<br />
locations as the baseline/pre-construction samples and analyzed <strong>for</strong> PCBs, lead, and<br />
asbestos at areas where PCB contaminated soil (above 1000 µg/kg) removal is not<br />
required. Results will be compared to the baseline/pre-construction soil samples or<br />
regulatory limit of 1,000 µg/kg <strong>for</strong> PCBs to verify that contaminants were not<br />
released into the environment as a result of the removal action. If the results of<br />
PCBs exceed the criteria the Navy will verify exact areas <strong>for</strong> excavation with the<br />
EPA and Water Board prior to removal of contaminated soil.<br />
Final Sampling and Analysis Plan<br />
Installation Restoration Site 29, Hangar 1<br />
Former Naval Air Station, <strong>Moffett</strong> <strong>Field</strong>, <strong>Moffett</strong> <strong>Field</strong>,<br />
Cali<strong>for</strong>nia<br />
DCN: AMEC-8816-0005-0039<br />
April 2010<br />
Page 14-2
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