Update for the Week Ending April 29, 2016
Site Remediation Continues
- 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;
- Initiated the excavation of the cement/bentonite (CB) slurry wall for installation of the SOE sheet piles; and
- Continued the lining, loading, and shipment of trucks of impacted material to Bayshore Soil Management for treatment and disposal:
- 20 trucks; 521.09 tons shipped last week; and
- 2,290.08 tons shipped to date
Recently completed activities:
- Completed preparation of a lined containment area in the temporary containment building (TCB) for placement of the excavated spoils from the CB wall installation.
- Continue the lining, loading, and shipment of trucks of impacted soil to Bayshore Soil Management for treatment and disposal; and
- Continue the excavation of the CB slurry trench for installation of the SOE wall sheet piles.
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.
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
Mobilizing sheet piles to the Site for the SOE wall.
Conducting investigatory pre-drilling for deep obstruction identification along the southern alignment of the SOE wall.
Preparing a lined containment area in the TCB for the excavated CB slurry wall spoils.
Excavating the CB slurry wall along the eastern alignment of the SOE wall, while employing foam for odor control.
Loading excavated CB slurry wall spoils into a truck for transfer to the containment area in the TCB.
Sounding the CB slurry wall to verify depth to 48 feet below ground surface.
Installing sheet piles in the CB slurry wall.
Loading lined trucks with soil for shipment to Bayshore Soil Management for treatment and disposal.