Update for the Week Ending May 13, 2016

Site Remediation Continues

On-going activities:

  • Continued the application of water and calcium chloride for dust control;
  • Continued the application of odor-suppressant foam and BioSolve for odor and dust 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 operation of the water treatment plant (WTP) and discharge to the sewer;
  • Continued investigatory pre-drilling for deep obstruction identification along the alignment of the support of excavation (SOE) wall;
  • Continued lining and loading trucks and shipping impacted soil to Bayshore Soil Management for treatment and disposal:
    • 6 trucks; 198.32 tons shipped last week; and
    • 2,265.00 tons shipped to date.
  • Initiated excavation and installation of the cement/bentonite (CB) slurry trench for installation of the SOE wall sheet piles:
  • 63 linear feet installed last week; and
  • 63 of 620 linear feet installed to date

Upcoming activities:

  • Initiate installation of the SOE sheet piles in the CB slurry trench.

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 fifteen-minute Action Limit exceedances for Particulate Matter (PM-10) [dust], Total Volatile Organic Compounds (TVOCs), or odors during this reporting period.

There was one instance of the fifteen-minute average concentration of Particulate Matter (PM-10) [dust] exceeding the applicable Action Limit on May 11, 2016, due to dust created during cement and bentonite mixing at the grout plant.  Work was stopped, and the dust levels decreased below the Action Limit.

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


Conducting investigatory pre-drilling for deep obstruction identification along the western alignment of the SOE wall.


Installing the CB slurry trench along the eastern SOE wall alignment.


Applying odor suppressant foam during installation of the CB slurry trench for odor control.


Installing the CB slurry trench along the eastern SOE wall alignment.


Loading soil removed from the CB slurry trench for transfer to the Temporary Containment Building (TCB).


Offloading soil removed from the CB slurry trench in the lined containment area in the TCB.


Pressure washing trucks on the decontamination pad prior to exiting the Site onto N. 11th Street.