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EPA work plan review, 133-135 and 21-23 buildings, August 2005

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EPA Region 2 letter regarding revised environmental work plan submission for two buildings including asbestos, health, and safety assessment components.

NYC-WTC_000134871–000135144
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NYC 9/11 Public Portal Document

Part II - Environmental Community Monitoring Plan 133-135 Greenwich & 21-23 Thames Streets Airtek Project 05-0701— Rev 1 August 11, 2005

Attachment B

Table — 3: Abatement Phase Work Area Monitoring

Location Parameter(s) Sample Analysis Method Comment Frequency Site Area Visible Dust Each Work Day Visual emissions Observation All sample points Asbestos Work shifts and 1. TEM required by NYC DEP once a day on Regulations for ACM non-work days as determined by Site Hygienist Waste Decon Clean- 1. Asbestos ACM each work i. TEM room at Greenwich 2. Silica day. Alternate 2. XRD Street 3. Metals Silica & Metals 3. ICP/AES Personnel Decon 1. Asbestos ACM each work 1. TEM Clean Room at 2. Silica day. Alternate 2. XRD Greenwich Street 3. Metals Silica & Metals 3. ICP/AES Rotating Basis at 1. Asbestos ACM each work 1. TEM Negative Air Exhaust 2. Silica day. Alternate 2. XRD nearest interior 3. Metals Silica & Metals 3. ICP/AES abatement Blanks 1. Asbestos 2 blanks per day 1. TEM 2. Silica 1 blank per week 2. XRD 3. Metals I blank per week 3. ICP/AES

Notes to Table 3:

Work Area Monitoring for Asbestos will be conducted under AHERA Rules and referenced to the 70 s/cc EPA Site Specific Trigger Level.

Work Area Monitoring for all COPCs will be referenced to the applicable OSHA Standard and the EPA Site-Specific Trigger Levels (Table 2).

NYC-WTC 000134956

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NYC-WTC_000134956Source: NYC Law Department, mirrored locally

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