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← Document results/DEP Box 48/22 RIVER TERRACE Block: 16 Lot: 190 BIN: 1085929 Park Place, Warren Street
Document / 49 pages

Air quality analysis report, 22 River Terrace, Sep 2001

Machine-extracted title · confidence 95%

Laboratory report on ambient air samples collected at 22 River Terrace indicating levels below recommended asbestos criteria.

NYC-WTC_000120885–000120933

Folder label: “22 RIVER TERRACE Block: 16 Lot: 190 BIN: 1085929 Park Place, Warren Street”

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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet sample area analyzed r

Client Name: GCI Environmental Advisory, Inc. Job #: 201092892 Volume liters 945.0 Lab Sample #: 03 Filter Tv oe / Filter Area: MCE 385 mm2 Client Sample #: 22-9/23-57 Grid Opening Size: 0.01000 Received: 09/24/2001 17:46:01 Area Examined: 0,09000 mm2 Date Analyzed: 09/24/2001 ~Magnification: 20,000 Scope #: 7 Acce1ertting Volta>?e: 100 KeV Analysis Performed by:

Grid Fiber Length Width Location Opening Fiber Type Morphology EDS Orient. SAED Photo E5-C4/3 1 1 1.3 0.1 Chrysotile Matrix Mg, Si, Fe / E5-E4/3 2 NSD E5-F4/3 3 NSD E5-G4/3 4 NSD E5-H4/3 5 NSD A6-C4/4 6 NSD A6-E4/4 7 NSD A6-F4/4 8 NSD A6-G4/4 9 NSD

NSD: No Asbestos Structures Detected Comments Structure Density Concentration Total Grid. Openings: 9 (str/mm2) (str/cc air) Grid Evaluation Chrysotile Asbestos Structures: 1 11.1 0.0045 Grid Openings Covered > 50% Amphibole Asbestos Structures: 0 <11.1 <0,0045 Intact Grid Opening > 50% Asbestos Structures >=5 microns: 0 <11.1 <0.0045 Undissolved Filter < 10%, Total Non-Asbestos Structures: Folded Replica < 50% Total Asbestos Structures: 11.1 0.0045 Filter Loading < 10% Analytical Sensitivity: l l .l 0.0045 Particulate Even

NYC-WTC 000120932

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NYC-WTC_000120932Source: NYC Law Department, mirrored locally

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