Permit application Part III, health Jan 2006

NYC 9/11 Public Portal Document

Regulatory Submittal Part m — Health & Safety Plan Fiterman Hall — 30 West Broadway, New York, New York Airtek Project 05-0867 — January 10, 2006

Figure 7-1

Action Level IQ 1 OSHA PEL 100 X OSHA Coutanunaats OSHA PEL (HaUralue of (Protection PEL (Protection OSHA PEL) factor for Half- Factor for Full- face APR) face PAPR) .asbestos 1!.1 f cc 0.0)51 'cc If cc I11 I Cc illllnolrs i.5 mg in 025 m .m' 5 Ilbt.nl' 50 IIISt.in' Barium i15 Ine in , if.25 nn m' 5 mg in, 50 m'; m' Ben Ilium ('.002 urn. In' 11.001 nls: In 1+.412 111 in 11.2 mu In` Cadmium 17'.'O5 m, m' 11.0025 ini. n 0.05 i m in '1.5 mg•in f'hrcnlium +III 1 11.5 1118 In 0.25 nlL in' 5 mg In 51) In.ill' C.ipper I m in 0.5 m-t Il ' U5 m_ Il ' 100 Ill; rn ' Lead 11.05 Ini m' u.025 rilt~.In' 0.5 In in 5 ms m' Mam_sn4k 5 rriu m' ' 5 mi m' 50 in m' 5110 Inu I-A' 1lcltur. ol m u- in ,1.I)5 n„ in I mu in' It) nrs In' Nickel I in in' 0.5 m'.; in' 10 in in' 100 in -in Zinc 5 nit in' 2.5 mg in' 51) me in' 500 n !. rn'

Personnel shall not be exposed to airborne chemical contaminants such that their short term or time- weighted average exposure exceeds OSHA "Permissible Exposure Levels" or ACGIH "Threshold Limit Values" for the chemicals of concern. To avoid the need for upgrade of personal protection equipment due to airborne contamination, engineering controls such as the use of water to minimize dust levels will be implemented as necessary during abatement activities.

The required level of protection may be modified based on airborne monitoring. All assessments shall incorporate industrial hygiene principles. Engineering controls shall be used prior to assignment of respiratory protective equipment. Signs shall be posted at entrances to areas where airborne chemical contaminants levels exceed, or have the potential to exceed, 25% of the applicable exposure limit.

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NYC-WTC 000095812