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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

Mr Rajappan Radhak ishnan — NYC DEP 133-135 Greenwich Street Variance Request Airtek Project 05-0701— August 11, 2005

We proposed to use Attachment E - Procedures for use of Foam or Similar Viscous Liquid in Removal of Asbestos Containing Roofing (ACRM) in New York City, 4IM In-place ACM has been identified as follows: to o6c 41 on_~ 1- o r ,rc~xi toms se)r Qor}L. 1. Bulkhead Tar —10 sf Y-' P.R 2. Roof Flashing — 35 sf e fp ~rrar`5 r ► a cl4. x0.1 b ta r These materials will be abated last in the decontamination sequence. For detailed a} 4 5. information on the asbestos survey conducted, please refer to the Airtek Asbestos o4 & cormmi C. Survey Report dated May 31, 2005 (Attached). F'; C n C e u { }kQ zorA Utilities - General:

Utility service is currently cut off to the building. All electricity and water required for the work will be drawn from sources outside the building.

Project Monitoring:

Project Monitoring: Throughout the decontamination activities, project air monitoring will be conducted in addition to the Perimeter Monitoring described above. Project Monitoring will be conducted in strict accordnce with RCNY Title 15 Chapter 1, Section 1-41 to 1-45 with the oxeeptionthat 1l sample analys will by TEM. ~c c '~ve(i Variance a?eIImvfon Clearance Testing: Aggressive area clearance testing for asbestos will be conducted for all work areas by TEM. by MOSH 7300

Clearance Criteria:

Clearance testing for asbestos will be acceptable when all samples for a given work area meet the 70 structures per square millimeter TEM standard. C 1s

Antimon 250 ug/m3 i opc o )-f c nc e Bari 250 ug/m3 sa.tti,.4 I; n -ZktU bey B llium 1.0 ug/m3 (Ls Sf te.i as I n -4h¢. lOor-1 ?LOA. Cadn1iun 5.0 ug/m3 Chromium 250 ug/m3 Copper SO0 ug/m3 Lead 2 ug/m3 Manganese 00 ug/m3 Mercury 12.5 ug/m3 Nickel 50 ug/m3 Zinc 1,000 ug/m3

NYC-WTC 000134192

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NYC-WTC_000134192Source: NYC Law Department, mirrored locally

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