Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
NYC-WTC_000145027–000145344Folder label: “NO INFO”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
7.4 Asbestos
The medical surveillance program outlined under 7.1 of this Plan includes the medical surveillance components required by the Asbestos Standard at 29 CFR 1926.1101(m).
7.5 Lead
Blood lead and ZPP monitoring are required by 29 CFR 1926.62(j) when airborne exposures exceed the Action Level of 30 ug/m3. Because the dust removal methods are designed to minimize the aerosolization of the dust, and the low concentrations (< 300 ppm), it is not anticipated that Action Limit will be reached and blood lead/ ZPP monitoring will therefore not be necessary. An exposure assessment will be used to verify this assumption.
8.0 AIR SURVEILLANCE
This section specifies the surveillance activities that will take place during the project Surveillance activities will achieve the following objectives:
Characterize breathing zone (BZ) concentrations of site contaminants for comparison with published exposure limits; Determining die appropriateness of respiratory protective equipment; and, Monitoring the performance of emission control activities.
8.1 Monitoring The usefulness of real time monitoring of respirable dust in this work environment is unknown to WRS. Collecting this data alongside air sampling activities may “calibrate” future real-time respirable dust monitoring and the establishment of Action Limits. WRS will perform real-time respirable dust monitoring to instruct the crew in relative dust levels. There will be no respirable dust Action Limits until or unless air-sampling data is available for comparison with real-time data.
8.2 Action Limits
None initially.
83 Air Sampling
Personal air sampling for lead, asbestos, and silica will be performed. Samples will be collected from the breathing zones of employees using the following NIOSH Methods. Analysis of samples will be made using NIOSH analytical method as well to facilitate comparisons with exposure limits.
-001 WRS Infrastructure and Environment, Inc. 17
NYC-WTC_000145094
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22 shared non-person entities · similarity 0.970
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13 shared non-person entities · similarity 0.969
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11 shared non-person entities · similarity 0.969
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12 shared non-person entities · similarity 0.966
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17 shared non-person entities · similarity 0.966
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12 shared non-person entities · 1 shared topics · similarity 0.965
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Similarity score 0.953 (not a probability)
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Similarity score 0.948 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Machine-extracted building matches; verify each source. Buildings, never households.
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