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← Document results/DEP Box 02/201 WARREN STREET Block: 16 Lot: 220
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Air monitoring plan Part III, 30 Warren Street, January 2006

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Part III of an air monitoring plan for remediation and deconstruction at 30 Warren Street in January 2006.

NYC-WTC_000096676–000096690

Folder label: “201 WARREN STREET Block: 16 Lot: 220

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NYC 9/11 Public Portal Document

Regulatory Submittal Part II - Environmental Community Air Monitoring Program Fiterman Hall— 30 West Broadway Airtek Project 05-0867 —January 10, 2006

Attachment A

Table 2- Data Reference Levels for Community Monitoring

Analyte Target Air Quality Levels EPA Site Specific Trigger See Note 1 Levels — See Note 2

Antimony 5 ug/m3 14 uglm3 Barium 5 ug/m3 5 ug/m3 Beryllium 0.02u /m3 0.2u m3 Cadmium 0.04 ug/m3 2 ug/m3 Chromium — See Note 3 0.6 ug/m3 60 ug/m3 Chromium VI 0.6 uglm3 Copper 10 ug/m3 100 ug/m3 Lead 1.5 ug/m3 5 ug/m3 Manganese 0.5 uglm3 0.5 ug/m3 Mercury 0.3 ug/m3 3 ug/m3 Nickel 0.2u m3 28 ug/m3 Zinc 16 ug/m3 160 ug/m3 Particles and Dusts Asbestos 0.0009 f/cc (PCMe fibers) 70 S/mm2 (TEM AHERA structures) Particulate PM-10 (24 hour 150 ug/m3 150 ug/m3 average) Particulate PM-2.5 (24 hour 40 ug/m3 65 ug/m3 average) Respirable Silica 10 ug/m3 10 ug/m3 (crystalline) Organics (semi-volatiles) Dioxins/Furans (2,3,7,8 — 0.00025 ng/m3 0.025 ng/m3 TCDD equiv.) PCB (total Aroclors) 0.12 ug/m3 12 ug/m3

PAH (benzo-a-pyrene 0.034 ug/m3 3.4 ug/m3 equivalent) Note 1: A rolling average after the first week of sampling, except for PM-10 and PM-2.5. Note 2: A 24-hour value. Note 3: If a chromium value is in excess of the Target Air Quality Level (0.6 ug/m3), this will result in a stoppage of work; and, that sample will be speciated for chromium `VI to determine that its concentration does not exceed the USEPA Site Specific Trigger Level for chromium VI, and the appropriate actions pertaining to an exceedance of the USEPA Site Specific Trigger Level will continue to be conducted.

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NYC-WTC_000096686Source: NYC Law Department, mirrored locally

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