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Waste Site Cleanup & Reuse in New England

Atlas Tack Corporation Superfund Site
Weekly Demolition/Cleanup Activities Update

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Projected Activities for the Week of January 2 - January 6

  • Continue excavation of contaminated soil (pending analytical results) from Pit # 2
  • Transport & dispose of contaminated soil from Pit #2
  • Begin mobilization of equipment / materials for Phase II work.
  • Continue dust monitoring at all four stations during site activity

Activities Performed During the Week of December 26 - December 30

  • Prepare concrete from Pit #1.
  • Confirmation sample soil from Pit # 1
  • Sample stained soil from Pit # 2 and pipe run to lagoon.
  • Sample water from Pit #2 and pipe run to lagoon
  • Load, transport & dispose of wood debris
  • Prep for Phase II activities
  • Dust monitoring at all four stations during site activity

Air Monitoring Information

Charter Environmental continues to monitor the four sampling locations during intrusive / destructive site activities during the 8 -hour day for dust particulates.

The four perimeter sampling stations are set up in the following locations:

Station 1 -- Site fence gate on Pleasant Street
Station 2 -- Site fence on east end of Church Street
Station 3 -- Site fence on bike path at Tripp Street
Station 4 -- Site fence at bike path near Adams Street

The dust particulate and asbestos sampling results recorded at each station every hour in a monitoring log. These results are compared to the action levels established for each parameter. These action levels are concentrations at which it is deemed unsafe and work would have to stop.

Results of the air monitoring data has shown that exposure of unsafe conditions to workers in the exclusion zone and to the public is well below the actions levels.

Dust Particulate Monitoring -- The National Ambient Air Quality standard for particulates is 150 micrograms per cubic meter (µg/m3) over an average of 24 hours. This value will be used, however, for a one hour period. Heavy metal presence is factored into determination of this action level. The average levels recorded at these locations range from 0 to 0.239 (µg/m3), with most readings valued at zero. The maximum level for this week is also recorded and ranges from 0.004 to 1.639 (µg/m3).

Asbestos Monitoring - Asbestos monitoring has been discontinued. All abatement measures have been completed, therefore monitoring is no longer required.

Actual Data - Below are tables showing the average and maximum dust particulate readings taken at each sampling location during the week of December 26 through December 30.

Dust Particulate Results
Dust Particulate Sampling Location 1 - Pleasant Street Gate

Readings are recorded as micrograms per cubic meter (µg/m3)

Time Monday,
12/26
Tuesday,
12/27
Wednesday,
12/28
Thursday,
12/29
Friday,
12/30
Average Holiday NSA 0.000 0.008 0.001
Maximum Holiday NSA 0.105 0.063 0.024
 
Dust Particulate Sampling Location 2 - Site Fence at East End of Church Street

Readings are recorded as micrograms per cubic meter (µg/m3)

Time Monday,
12/26
Tuesday,
12/27
Wednesday,
12/28
Thursday,
12/29
Friday,
12/30
Average Holiday NSA 0.052 0.239 0.012
Maximum Holiday NSA 1.639 1.011 1.406
 
Dust Particulate Sampling Location 3 - Site Fence at Bike Path/Tripp Street

Readings are recorded as micrograms per cubic meter (µg/m3)

Time Monday,
12/26
Tuesday,
12/27
Wednesday,
12/28
Thursday,
12/29
Friday,
12/30
Average Holiday NSA 0.010 0.000 0.004
Maximum Holiday NSA 0.620 0.244 0.886
 
Dust Particulate Sampling Location 4 - Site Fence at Bike Path/Adams Street

Readings are recorded as micrograms per cubic meter (µg/m3)

Time Monday,
12/26
Tuesday,
12/27
Wednesday,
12/28
Thursday,
12/29
Friday,
12/30
Average Holiday NSA 0.000 0.000 0.000
Maximum Holiday NSA 0.010 0.022 0.004

Notes: NSA – No sampling conducted on Tuesday 12/27, Admin only. Holiday – No site activity in observance of the Christmas Holiday.

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