Law Department notice on WTC document preservation, Oct 2001

NYC 9/11 Public Portal Document

5.6 Asbestos Training

The clean up of the dust in this building is an unclassified task because the material does not contain enough asbestos (<1%) to be considered Asbestos Containing Material (ACM). Therefore the training requirements at 29 CFR 1926.1101 (k)(9Xviii) apply. There is no minimum or maximum time allotted for completion of this training only a list of subjects to be covered. Employees performing dust removal activities will have training that meets or exceeds these requirements. 5.7 Lead Training

Lead is present in the dusts to be removed. Lead training is required at 29 CFR 1926.62 (1) when employee exposures exceed the Action Limit 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 lead training will therefore not be necessary. An exposure assessment will be used to verify this assumption.

6.0 PERSONAL PROTECTIVE EQUIPMENT

This section describes the specific levels of protection required for each task to be conducted at the project. The general requirements of the EPA designated Levels of Protection (A-D) are described in the WRS Health and Safety Program Manual. The level of protection to be worn by field personnel will be monitored by the IHSO.

6.1 Specific Levels of Protection Planned for the Project

PPE assignments are task specific. Table 6.1 on the following page lists task specific PPE levels. These levels are disqualified for use if air surveillance indicates that the upper action limit for the level of protection being used is exceeded.

Table 6.1: Levels of Protection Location Job Fnnction/Task 1^ PPE

Exclusion Zone • Surveying and prep of previously cleaned Cl/2 areas • Surveying and prep of areas not CPAPR previously cleaned • Vacuuming with Non-HEPA filtered CPAPR equipment • Vacuuming with HEPA filtered Cl/2 equipment in previously cleaned areas • Wet wiping following non-HEPA Cl/2 vacuuming • Wet wiping following HEPA vacuuming D+ • Cleaning equipment using air and vacuum CPAPR • Removing/ Changing vacuum bags/ filters CPAPR Support Zone Project Management Activities D Materials Storage

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