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Waste Site Cleanup & Reuse in New England

Atlas Tack Corporation Superfund Site
Weekly Remedial Activities Update
Report # 13: October 2 – October 6, 2006

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1. ACTIVITIES PERFORMED DURING THE WEEK OF OCTOBER 2 - OCTOBER 6

  • Collected waste characterization soil samples from soils originating from East Fill excavation for disposal profile for off-site landfill
  • Collected waste characterization soil samples from the fines in the oversize debris stockpile
  • Continued to screen soils originating from East Fill Area
  • Completed 2nd round of monitoring well water sampling
  • Performed additional waste characterization sampling of the potential hazardous waste stockpiles
  • 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 9 - OCTOBER 13

  • Observe Columbus Day Holiday
  • Commence to T&D soils Subtitle-D (non-hazardous) soils from stockpiles
  • Complete initial excavation of the East Fill Area to the proposed boundary limits
  • Perform re-excavation activities in the East Fill Area
  • Collect confirmatory soil samples from excavations in the East Fill Area
  • Collect waste characterization soil samples from soils originating from East Fill excavation for disposal profile for 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

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 28 September – 04 October 2006 can be reviewed in the table below

Weekly Dust Monitoring Summary
Week #13: 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)
9/28/2006 0 0 6 12 13 8
9/29/2006 Precip Precip Precip Precip Precip Precip
10/2/2006 0 0 0 25 0 6
10/3/2006 0 0 82 43 0 0
10/4/2006 39 21 16 55 0 29

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 # 13 - SUMMARY
TO DATE
ACTIVITIES TOTAL QUANTITY TOTAL QUANTITY
C.I.D. Excavation (Re-Digs) None 6,304 CY
East Fill Excavation 2,180 CY 7,724 CY
Soils T&D to Crapo Landfill None 1,870 Tons
Soils T&D to Marion Landfill 1,940 1,940 Tons

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

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