Technical specifications for air quality monitoring work at two Manhattan buildings.
NYC-WTC_000163360–000163368Folder label: “E-mails M. Gilsenan”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
6661 -01, Air - NIOSH 5515
Metals EPASW-846 601 OB Micro vacuum - ASTM E Clearance results for Lead 1973-99 Wipes within 24 hours Wipe Samples - HUD Appendix 13.1 Metals 14 Days Air Samples - NIOSH 7300 Bulk Samples - Collection method that reduces the potential for dust release. Mercury EPASW-846 7471A Wipe Samples-HUD 14 Days Appendix 13.1 Silica, Calcites, Gypsum NIOSH 7500(XRD) Wipe Samples - HUD 14 Days Appendix 13.1 Air Samples - NIOSH 7500 Bulk Samples - Collection method that reduces the potential for dust release. MMVF EMSL MSD.0300 Collected with asbestos, 14 Days Micro vacuum - ASTM D 5755-95 Wipe Samples - ATSM D6480-99 Air Samples - NIOSH 7400 MMVF/Asbestos PLMNYS 198.1/EMSL Collected with asbestos, 14 Days MSD.0300 Bulk
The Technician will document all the necessary information regarding sampling activities and complete all field logs, data sheets, and chain-of-custody forms. Samples must be labeled and accompanied with completed chain- of-custody forms before submitting to the laboratory for analysis.
Post Cleaning Aggressive Air Sampling Procedures by Air Sampling Technician
Sampling shall not begin until a visual inspection confirms the absence of visible dust and debris. Post cleaning air sampling shall be performed upon successful visual inspection and completed within 24 hours. A successful visual inspection shall be an inspection that verifies the absence of dust and debris. All surfaces must be completely dry prior to the start of sampling. Based on consultation with the resident or owner, aggressive or modified aggressive air sampling will be conducted. Residents shall not be present during aggressive air sampling activities.
Before beginning aggressive air sampling, a 1 horsepower electric leaf blower shall be used to direct exhaust air against walls, ceilings, floors and other surfaces. This shall continue for at least five minutes per 1,000 square
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NYC-WTC_000163366
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NYC-WTC_000163372
Request to send the air monitoring scope document to legal counsel and the sender due to computer access issues.
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Request for review of monitoring contractor specifications for air sampling, including sampling methodologies, limits of detection, and clearance criteria, with reference to prior…
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162838
Correspondence regarding Schedule A forms and a draft scope of work for cleaning and air monitoring contracts at the site.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156019
Document tracking the chain of custody for environmental samples collected at 125 Cedar Street on August 21, 2002.
15 shared non-person entities · 1 shared topics · similarity 0.986
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machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · 1 shared topics · similarity 0.984
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Document tracking the chain of custody for environmental samples collected at 114 Liberty Street on August 22, 2002.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156000
Contractor work scope for air monitoring and environmental surveillance at 125 Cedar building.
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machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗14 shared non-person entities · 1 shared topics · similarity 0.984
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NYC-WTC_000096827
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Letter from DOHMH transmitting results of a July 2002 mold inspection at 125 Liberty Street.
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NYC-WTC_000139360
DEP official asks if new mold regulations require inclusion in the cleaning scope for 125 Cedar Street.
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