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EPA review letter, 133-135 Greenwich Street

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US EPA Region 2 letter dated November 15, 2005, confirming completion of environmental review for abatement plans at 133-135 Greenwich Street.

NYC-WTC_000134132–000134414
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NYC 9/11 Public Portal Document

Part III — Health & Safety Plan 133-135 Greenwich Street/21-23 Thames Street Airtek Project 05-0701— Rev 3, August 29, 2005

(MSHA)i. Half-face air-purifying respirators (APR) may be used during work preparation activities.

Gloves - nitrile inner; chemical resistant outer (nitrile or neoprene)

ANSI-approved safety boots

ANSI—approved Eye protection — safety glasses or goggles

ANSI-approved Hard hat with bill facing forward

Tyvek coveralls with head cover (Two layers Tyvek or equivalent)

Water-resistant overboots which are treaded to provide slip protection

Hearing protection (as necessary)

2.5.3 Level B PPE

Level B PPE may be required during jack hammering concrete unless engineering controls are instituted incorporating local exhaust ventilation at the point of dust generation until personal air monitoring confirms that the level of silica is below the OSHA action level. Level B PPE consists of

Self-Contained Breathing Apparatus (SCBA) or combination airline/SCBA approved by the National Institute for Occupational Safety and Health (NIOSH)/Mine Safety and Health Administration (MSHA).

Gloves - nitrile inner; chemical resistant outer (nitrile or neoprene)

ANSI-approved safety boots

ANSI—approved Eye protection — safety glasses or goggles

ANSI-approved Hard hat with bill facing forward

Tyvek coveralls with head cover (Two layers Tyvek or equivalent)

Water-resistant overboots which are treaded to provide slip protection

NOTE: If air sampling data proves that the level of asbestos and COPCs are consistently below the action level, respiratory protection may be downgraded to an appropriate level of protection. Hearing protection (as necessary)

2.5.4 Level A PPE

Use of this type of PPE is not anticipated at this site. Should work conditions and personnel sampling exceed action levels for a PPE upgrade to Level A, operations shall cease in that area

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NYC-WTC 000134290

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NYC-WTC_000134290Source: NYC Law Department, mirrored locally

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