Update Week Ending August 24, 2012

Remedial Contractor Continues Site Remediation

Systematic Excavation and Backfill Continues Beneath the Temporary Fabric Structure

Compaction testing backfill in TFS position 3

On-going activities:

• Continued systematic excavation beneath the temporary fabric structure (TFS), load out, and transportation of the material in lined, covered trucks for proper disposal.
• Continued backfilling excavated areas of the Site with clean backfill.
• Continued breaking the concrete slab and foundation from the one-story warehouse building and load-out of the concrete for recycling.
• Continued stockpiling clean sand from beneath the one-story building slab and foundation for reuse as backfill on Site.
• Continued the use of an odor suppressant misting system on the perimeter fence, TFS doors, applied odor suppressant liquid, foam, and plastic sheeting to prevent odors from leaving the Site.
• Continued the application of water throughout the Site to prevent the formation of dust.
• Continued maintenance of erosion and sediment controls throughout the Site.
• Continued general housekeeping activities at the Site.
• Continued monitoring for noise, vibration, and settlement on Site and on neighboring properties.
  

TFS position 3 backfilling with vinyl door and air filtering system in place

Recently completed activities:

• Completed excavation beneath position #3 of the TFS and continued backfilling.
• Initiated preparation for relocation of the TFS to position #4 northward.

scraped clean concrete barrier wall in TFS position 3

Future near-term activities:

• Complete the placement of backfill beneath TFS position #3 and relocate the TFS to position #4.
• Complete the breaking and removal of the concrete slab and foundation from the former one-story warehouse building.
• Complete backfilling shallow excavation areas at the western areas of the Site.
• Initiate excavation and backfilling of shallow excavation areas at the northern areas of the Site.

Community Air Monitoring Plan Summary

Community air monitoring, initiated in February 2012, continues as intrusive activities are conducted by the remediation contractor at OU-2. There were no exceedances of action levels during this period.

Staten Island Community Board #1 One Edgewater Plaza Room 217 Staten Island, NY 10305 Phone #: (718) 981-6900

Borough President’s Office Borough Hall Staten Island, New York 10301 Phone #: (718) 816-2057