Cover page for an air monitoring and bulk sampling report for Building #200 at 375 South End Avenue.
NYC-WTC_000095478–000095630Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
than one-percent Asbestos-Containing Material (ACM): Asbestos or any material containing more asbestos. volume of air collected Clearance Air Monitoring: Employment of aggressive sampling techniques with a performed as the final abatement to determine the airborne concentration of residual fibers and shall be activity. New York State Department of ELAP: Environmental Laboratory Approval Program administered by the Health.
EPA or USEPA: United States Environmental Protection Agency one Homogeneous Work Area: Portion of the Work Area that contains one type of ACM and/or where type of abatement is used. assessment for the fiber Phase Contrast Microscopy: "PCM" shall mean the measurement protocol for the clearance air monitoring shall be considered satisfactory when every content of air. For PCM analysis, the f/cc or the background concentrations, whichever is greater. sample is less than or equal to 0.01 the Polarized Light Microscopy: "PLM"shall mean the measurement protocol for the assessment for Regulatory limit is asbestos content of bulk materials. For PLM analysis, the New York City and EPA 1.0%. assessment for Transmission Electron Microscopy: "TEM"shall mean the measurement protocol for the TEM analysis, the clearance air monitoring shall be considered the asbestos fiber content of air. For Section IV are met. satisfactory when the requirements stated in 40 CFR Part 763, Subpart E. Appendix A, For the purposes of our testing the regulatory limit is 70 asbestos structures per mm2.
4.0 Scope of Work 4.1 Bulk Sampling Procedures
ALC's licensed technicians worked under the guidance provided by the EPA guidelines for asbestos-"Asbestos in Buildings: Simplify Sampling Scheme for Friable Surfacing Materials." of the • This sampling procedure uses random sampling to ensure that the samples are representative sampling area. ALC's inspectors:
1. Identified all friable surfacing materials and grouped them into homogenous sampling areas by floor 2. Prepared diagrams of each sampling area 3. Determine the number of samples to collect (9 samples per homogenous areas are recommended) Determine sampling locations 4. Collect samples 5. Fill out chain of custody 6. Send samples to a qualified laboratory
Due to the insufficient amount of dust and debris in the apartment units and public areas of the building, we were unable to collect the optimum number of samples suggested in the above referenced guidelines.
Upon completion of the initial assessment and bulk sample collection, ALC determined that there were elevated asbestos levels in six apartments. With the guidance of the above referenced document and NYCDEP we went back to each floor and assessed each apartment on each floor for visible dust and debris.
NYC-WTC 000095482
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Air monitoring report for 345 South End Avenue buildings conducted in January 2002 showing TEM results.
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Air monitoring report for 345 South End Avenue buildings conducted in December 2001 showing TEM results.
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Document tracking environmental samples collected from Building #100 at 345 South End Avenue on October 22, 2001.
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Record documenting the transfer and custody of air samples from Building #100 at 345 South End Avenue collected on October 22, 2001.
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Chain of custody documentation for bulk sampling and air monitoring at 385 South End Avenue Building 500.
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Air monitoring report for 345 South End Avenue buildings conducted in January 2002 showing TEM results.
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Chain of custody for air samples collected at 345 South End Avenue buildings in late January and early February 2002.
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