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Waste Site Cleanup & Reuse in New England

Atlas Tack Corporation Superfund Site
Weekly Remedial Activities Update
Report # 15: October 16 - October 20, 2006

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1. ACTIVITIES PERFORMED DURING THE WEEK OF OCTOBER 16 - OCTOBER 20

  • Completed the construction of an additional 240-lf berm (3-ft in height) along the northeast limits of the East Fill Area to prevent tidal waters from entering the excavation
  • Completed the excavation in the East Fill Area
  • Relocated the security fence and began to re-excavate along the western boundary of the Commercial and Industrial Debris Area (CID)
  • Collected all confirmatory soil samples from excavations in the East Fill Area
  • Collected waste characterization soil samples from soils originating from East Fill excavation for waste profile for disposal at off-site landfill
  • Continue to screen soils originating from East Fill Area
  • Continue to water the haul roads for dust control
  • Continue to collect pre and post excavation survey data of the excavations
  • Continue water handling activities
  • Continue with air monitoring program

2. PROJECTED ACTIVITIES FOR THE WEEK OF OCTOBER 23 - OCTOBER 27

  • Transport and Dispose (T&D) COMM-97 soils (3,000-cy)
  • T&D Oversize Debris
  • Perform re-excavation activities in the East Fill Area (if applicable)
  • Complete re-excavation of soils along the western boundary of the CID
  • Collect confirmatory soil samples from excavations in the East Fill Area
  • Collect waste characterization soil samples from soils originating from East Fill excavation and CID for waste profile for disposal at off-site landfill
  • Continue to screen soils originating from East Fill and CID Areas
  • Continue to water the haul roads for dust control
  • Continue to collect pre and post excavation survey data of the excavations
  • Continue water handling activities
  • Continue with air monitoring program

3. AIR MONITORING INFORMATION

WESTON monitored for particulate (dust) during intrusive activities performed during this reporting period. WESTON recognizes EPA's level of concern for "PM10" to caution sensitive groups, including children, the elderly, and people with heart or lung disease, about exposure to coarse dust particles. The PM10 level of concern for sensitive groups is 150 µg/m3 for 24-hour average exposure.

Perimeter Air Monitoring is performed at up to (6) locations throughout a given work day. Readings are collected at 60 second intervals throughout the day and reported as a daily average.

If exceedances are identified, an increased effort of engineering controls (water suppression) will be utilized to adhere to the PM10 level of concern. If engineering controls appear to be inadequate, any dust generating activities will stop. Current dust control practices will be re-evaluated until concentrations are reduced to below the PM10 standard.

Results for 12 October – 18 October 2006 can be reviewed in the table below.

Weekly Dust Monitoring Summary
Week #15: Results for Thursday through Wednesday**

The EPA's PM10 level of concern for sensitive groups is 150 µg/m3 for 24-hour average exposure

Date Pleasant Street (µg/m3) Adams Street (µg/m3) Tripp Street (µg/m3) Egypt Road (µg/m3) Hurricane Barrier (µg/m3) Church Street 2 (µg/m3)
10/12/2006 Precip Precip Precip Precip Precip Precip
10/13/2006 4 0 0 0 2 2
10/16/2006 0 0 0 0 0 0
10/17/2006 0 0 1 0   0
10/18/2006 Precip Precip Precip Precip   Precip

Notes:
All readings reflect the daily average calculated over the course of the workday.
All readings collected with a Thermo Electron PDR 1000.
NSC: No sampling conducted; No intrusive work conducted in that area.
Precip: No sampling conducted due to precipitation.
*: Monitoring conducted over 24-hour period.
**: No work and air monitoring occurs on weekend days

4. QUANTITY SUMMARY

Report # 15 - SUMMARY
TO DATE
ACTIVITIES TOTAL QUANTITY TOTAL QUANTITY
C.I.D. Excavation (Re-Digs) 1,000 CY 7,304 CY
East Fill Excavation 1,500 CY 9,724 CY
Soils T&D to Crapo Landfill None 1,237 Tons
Soils T&D to Marion Landfill None 1,940 Tons

Notes:
CY = volume of soil/debris in cubic yards

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