Update for the Week Ending April 7, 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 and water treatment plant (WTP) component decontamination to the WTP;
  • Continued operation and maintenance of the WTP;
  • Continued treatment and discharge of water to the sewer;
  • Continued lining and loading trucks and shipping impacted soil to Bayshore Soil Management (BSM) for treatment and disposal:
    • 2 trucks; 49.32 tons shipped last week; and
    • 63,709.27 tons shipped to BSM to date.
  • Continued the import of select fill backfill to the Site;
  • Continued backfilling in the western shallow excavation area with select fill;
  • Continued compaction of the backfill lifts;
  • Continued compaction testing of the backfill lifts;
  • Continued the decontamination of the WTP components;
  • Continued the abandonment of Site wells; and
  • Continued decontaminating and demobilizing equipment from the Site.

Upcoming activities:

  • Complete backfilling in the deep excavation;
  • Complete excavation and backfilling in the western shallow excavation area;
  • Import and place topsoil;
  • Hydroseed the Site;
  • Replace damaged sidewalks along N. 12th Street, Kent Avenue, and N. 11th Street; and
  • Install fencing around the 50 Kent Avenue property.

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

Offloading select fill backfill imported to the Site.

Grading select fill backfill in the western shallow excavation area.

Compacting and testing select fill backfill lifts in the western shallow excavation area.

Abandoning Site wells no longer needed.

Abandoning Site wells and developing new NAPL recovery wells.