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NYC-WTC_000199342

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000199342–000199343
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NYC 9/11 Public Portal Document

PSC BlO-921-9667 p ■ Sep 13 02 01:29p

PSC ANALYTnCAL INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING SERViCES • EPArNVtAP 101262-0 • NV DOH/NELAC 10803 • NJ D£P PAOZO • AIHAACCREDITATIDNNO. 100439 • PA DEP 06-353 • CT OPH PH-0238 • NC DENR 599 Analytical Results for ATC Associates WorkOrder: R02090200 Client Reference: 19125-0342

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) (mg/m’) (ppm) (UE) C« feb H Client ID: ATC-0904-42M-S1 Lab ID; -OIA Date Sampled: 9/4/02 Matrix: Filter AirVoKL); 1020-^..

Total Particulate Matter <50.0 <0.0490 50 N0500 09/11/2002 ADM

Silica (Quartz Total) <5.00 <0.00490 5 AIRBORNE SILICA 09/11/2002 ADM

Client ID; ATC-0904-42M-S^ Lab ID: -02A Date Sampled: 9/4/02 Matrix: Filter Air Vol.(L): 1020 j Total Particulate Matter <50.0 <0.0490 50 N0500 09/11/2002 ADM

Silica (Quartz Total) <5.00 <0.00490 5 AIRBORNE SILICA 09/11/2002 ADM

Client Ilh ATC-0904-421^3^ Lab ID: -03A Date Sampled; 9/4/02 Matrix: Filter AirVol.(L): 1020

Total Particulate Matter 55.0 0.0539 50 N0500 09/11/2002 ADM

Silica (Quartz Total) <5.00 <0.00490 5 AIRBORNE SILICA 09/11/2002 ADM

A’ t_xr Ai IC Client ID: ATC-0904-42M-S4 Lab ID: -04A Date Sampled: 9/4/02 Matrix: Filter Air Vol.(L): NA

Total Particulate Matter 52.0 50 N0500 09/11/2002 ADM

Silica (Quartz Total) <5.00 5 AIRBORNE SILICA 09/11/2002 ADM

(a) Analysts indicates possible breakthrough; back section result is greater than 0% of the front section result.

General Notes: <: Less than the indicated limit of detection * LOD). —: Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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September 13, 2002 CITY_21MC100_003049208

NYC-WTC_000199343

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NYC-WTC_000199343Source: NYC Law Department, mirrored locally

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