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← Document results/DEP Box 46/345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083378 365 South End Avenue, Building #300
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Chain of custody form for air monitoring, 365 South End

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Chain of custody documentation for bulk sampling and air monitoring at 365 South End Avenue Building 300.

NYC-WTC_000117723–000117747

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083378 365 South End Avenue, Building #300

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NYC 9/11 Public Portal Document

Asbestos Containing Material (ACM): Asbestos or any material containin asbestos. g more than one-percent

Clearance Air Monitoring Employment of aggressive to determine the airborne sampling techniques with a concentration of residual fi volume of aire collected activity. as the final abate meat

ELAP: Environmental Laboratory Approval P rogram administered by the New York State Department of EPA or USEPA: United States Environmental Protection Agency. Homogeneous Work Area of the Work Area that type of abatement is used. contains one type of ACM and/or where one Phase Contrast Microscopy PCM" shall mean the content of air. For PCM measurement protocol for the analysis, the clearance air assessment for the fiber sample is less than or equal to monitoring shall be considered 0.01 f/cc or the background satisfactory when eve concentrations, whichever is rY .. : greater. Polarized Light Microscopy: PLM shall mean the asbestos content of bulk measurement protocol for the materials. For PLM analysis, the 1 .070. New Yor City and EP assessment for the A Reg ulatory limit is

Transmission Electron Microscopy: the asbestos fi ber content of " M"shall mean the air. For TEtNI analysis, measurement protocol for the the clearance air monitoring assessment for satisfactory when the requirements shall hr rt?nsidered stated in 40 CFR Part 763 For the p u rPoses of our testing Subpart E. Appendix A. the regulatory li m i t is 70 asbestos structures per Section IV are met rnrr)2. 4.0 Scope of Work

4.I Bulk Sampling Procedures

ALC's licensed technicians worked under the guidance provid ed asbestos-";sbe tos in Buildin s: SirnDli by the EPA gui 1' Sam lin Scheme for This sampling procedure or Friable Surfac lines uses random sampling to nkeMater sampling area. ALC's i nspectors: ensure that the sam les are representati ve of the F

I. Identified all li able surfacing materials and grouped then) areas by floor into homogenous sampling 2. : Prepared diagrams of each sampling area 3 Determine the number of samples to collect (9 samples recommended) Determine sampling per homogenous areas locations are . 4. ; Collect samples S. Fill out chain of custody 6. :Send samples to a qualified laboratory Due to the insufficient amount of dust and debris in building, we were unable to collect the apartment units and the Optimum number of public areas of the referenced guidelines samples suggested i n the above

Upon completion of the initial assessment and bulk sample were elevated asbestos levels in six collection ALC determined apartments" With the guidance of that the re document and NYCDEP we the above referenced went back to each fl oor and visible dust and debri s. assessed each apartment on each floor for

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NYC-WTC 0001 17726

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NYC-WTC_000117726Source: NYC Law Department, mirrored locally

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NYC-WTC_000117757 · Box DEP Box 46

Cover page for a report detailing annual assessment, bulk sampling, and air monitoring activities at the specified address.

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