Update for the Week Ending March 10, 2017

Site Remediation Nears Completion

Deep Excavation Nears Completion:

  • Continued the application of water and calcium chloride for dust control;
  • Continued the application of BioSolve for Total Volatile Organic Compounds (TVOC), Particulate Matter (PM-10) [dust], and odor control;
  • Maintained erosion and sediment (E&S) controls (Installed waddles - wood chip and straw filled fabric tubes - around the Site perimeter to prevent silt and sediment from leaving the Site and covered all stockpiles);
  • Continued pumping from the decontamination pad to the water treatment plant (WTP);
  • Continued operation and maintenance of the WTP;
  • Continued backfilling in the eastern shallow excavation area with select fill;
  • Continued compaction of the backfill lifts;
  • Continued compaction testing of the backfill lifts;
  • Initiated cutting the support of excavation (SOE) wall sheet piles to five feet below final grade; and
  • Continued decontaminating and demobilizing equipment from the Site.

Recently Completed:

  • Completed the disassembly of the temporary fabric structure (TCB).

Upcoming activities:

  • Install two NAPL recovery wells along N. 12th Street;
  • Complete backfilling in the deep excavation; and
  • Complete excavation and backfilling in the western shallow excavation area.

Community Air Monitoring Plan Summary

Community air monitoring, initiated on Tuesday, December 1, 2015, continues as intrusive (ground disturbance) activities are conducted.

There were no 15-minute Action Limit exceedances for Total Volatile Organic Compounds (TVOC), Particulate Matter (PM-10) [dust], or odors.

If you have any questions or comments about the work on the Site, please use the Williamsburg MGP Telephone Hotline at (718) 403-3053.

Photos of Activity


Removing fabric from the TCB.


Disassembling the TCB superstructure.


Disassembling the TCB superstructure.


Preparing the TCB superstructure components for demobilization from the Site.


Placing and grading the select fill backfill lifts in the eastern shallow excavation area.


Compacting the select fill backfill lifts.


Compaction testing the select fill backfill lifts.


Cutting the southern SOE wall sheet piles to five feet below final grade.


Cutting the western SOE wall sheet piles to five feet below final grade.


Removing sediment and decontaminating two WTP storage tanks.