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Waste Site Cleanup & Reuse in New England

Atlas Tack Corporation Superfund Site
Weekly Remedial Activities Update
Report # 5: August 7 - August 11, 2006

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1. ACTIVITIES PERFORMED DURING THE WEEK OF AUGUST 7 - AUGUST 11

  • Continued to construct the stockpile staging area
  • Installed entrance to the site off of Adams Street
  • Installed on site haul roads
  • Completed berm from the East Fill Area to the Hurricane Barrier
  • Continued with stockpile maintenance activities
  • Excavated Grid G, along Tripp Street.
  • Backfilled Grid F
  • Completed dewatering pad by installing and sealing interlocking bin blocks
  • Established survey layout and of existing topographic conditions in C.I.D. Area.
  • Continued to water the roads for dust control

2. PROJECTED ACTIVITIES FOR THE WEEK OF AUGUST 14 - AUGUST 18

  • Excavate and backfill Grid G located in the Commercial Area
  • Complete stockpile staging area
  • Complete haul road construction
  • Begin to excavate C.I.D. Area
  • Continue to water the roads for dust control
  • Continue to collect pre and post excavation survey of the excavations
  • 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. See analytical results below.

Weekly Dust Monitoring Summary
Week #5: Results for Monday through Friday **

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 1 (µg/m3) Church Street 2 (µg/m3) Church Street 3 (µg/m3) Church Street 4 (µg/m3)
8/7/06 16 136 0 8 0 NSC NSC NSC 0
8/8/06 0 0 0 NSC NSC 0 NSC 0 0
8/9/06 0 0 0 NSC NSC 8 NSC 0 0
8/10/06 0 0 45 NSC 4 NSC 18 NSC NSC
8/11/06 0 0 33 NSC 32 NSC 0 NSC NSC

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

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