15 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗Document / 6 pages
2003 E-Mails Sent M Gilsenan
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000139162–000139167Page image
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NYC 9/11 Public Portal Document
3. Wipe samples shall be collected before and after cleaning for lead, mercury, dioxin, and PAHs.
Prior to the cleaning activities, three wipe samples shall be collected for each of these parameters in each apartment. The sampling locations shall be a wall, a bare floor, and a counter or tabletop.
After cleaning activities, three wipe samples shall be collected for each of these parameters in each apartment. The sampling locations shall be a wall, a bare floor, and a counter or tabletop.
4. The required sampling and analytical procedures are specified in Table 1.
Table 1: Sampling and Analytical Methods Parameter Description Sampling Methodology Analytical Method________ Lead Wipe samples HUD Appendix 13.1 EPA Method SW-846-6010B PAHs Wipe samples ASTM D6661-01 ASTM-6661-01 EPA SW-846-8270C_______ Dioxin Wipe samples ASTM 6661-01 ASTM 6661-01 EPA Method SW-846-8290 Fibrous Glass Air samples NIOSH 7400 EMSLMSD.0300_________ Crystalline Silica Air samples NIOSH 7500 NIOSH 7500 (XRD)_______ Mercury Wipe samples HUD Appendix 13.1 EPA Method SW-846 7471A
Asbestos Air Sampling Analysis
1. All asbestos air samples collected during clean-up activities shall be analyzed via TEM. The method of analysis and sampling methodologies shall be in accordance with the applicable sections of Title 15, Chapter 1 of the Rules of the City of New York.
2. A turnaround time of 24 hours is required for all samples.
3. Asbestos clearance air samples shall be analyzed in accordance with the NIOSH 7400 Method, Counting Rule “A”. The remaining portion of the filter shall be analyzed in accordance with the AHERA Method. The laboratory shall record fibers greater than 5 pm in length. The PCMe value shall be calculated and reported.
Asbestos Air Monitoring
I. Ata minimum, five (5) TEM samples shall be collected per day during cleanup activities.
2. Samples shall be collected at isolation barriers outside the work area, the clean room of the worker/waste decontamination facility, and outside of the building.
3. Sample collection during clean up activities shall be in accordance with Title 15, Chapter 1 of the Rules of the City of New York (RCNY) regarding documentation, sample locations, rate of flow, and required volumes to achieve the necessary analytical sensitivity.
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NYC-WTC_000139165
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NYC-WTC_000139165Source: NYC Law Department, mirrored locally
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153557
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14 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156050
Document tracking the chain of custody for environmental samples collected at 114 Liberty Street on August 22, 2002.
13 shared non-person entities · 1 shared topics · similarity 0.993
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