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Dust analysis results, PS234M, February 2002

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Laboratory analytical results for dust samples collected at PS234M on February 28, 2002.

NYC-WTC_000177747–000177749
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NYC 9/11 Public Portal Document

Mar 11 02 09:IGa PSC Rnalytical Services G1O9219GG7 p. 13

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPA/NVLAP101262-0 •NYDOmELAC10S03 • NJ DEP PA020 • AIHAACCREDITATION NO. 100439 ■ PA DEP 06-353 •CT DPH PH-0238 ■NCDENRS99

ANABYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: RO2030044 Client Reference: 19125-0297

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) ; (mg/m’) ; (PPn>) (ug)

Client ID: MI AT<:-()228-89M Lab ID: -OIA Date Sampled: 2/28/02 Matrix: Filter Air Vol-(L): 1200 Aluminum 1.14 ,, 0.000953 1 N7300 MCE 03/08/2002 TH Cadmium <01200 <0.000167 0.2 N7300 MCE 03/08/2002 TH — Chromium > 0.359 0.000299 0.2 N7300 MCE 03/08/2002 TH Cobalt <0.100 <0.0000833 0.1 N7300 MCE 03/08/2002 TH Copper <0.200 <0.000167 0.2 N7300 MCE 03/08/2002 TH Iron <2.00 <0.00167 2 N7300 MCE 03/08/2002 TH Lead <0.300 <0.000250 0.3 N7300 MCE 03/08/2002 TH Magnesium <1.30 <0.00108 1.3 N7300 MCE 03/08/2002 TH Manganese <0.300 <0.000250 0.3 N7300 MCE 03/08/2002 TH Molybdenum <1.00 <0.000833 1 N7300 MCE 03/08/2002 TH Nickel <0.200 <0.000167 0.2 N7300 MCE 03/08/2002 TH Zinc <0.500 <0.000417 0,5 N7300 MCE 03/08/2002 TH

Client ID: M2 ATC-0228-89M : -02A Date Sampled: 2/28/02 Matrix: Filter AirVoi.(L); 1200 Aluminum . 1162 > 0.00135 1 N7300 MCE 03/08/2002 TH Cadmium <0.200 <0.000167 0.2 N7300 MCE 03/08/2002 TH — Chromium 0,000240 0.2 N7300 MCE 03/08/2002 TH Cobalt <0.100 <0.0000833 0.1 N730D MCE 03/08/2002 TH Copper <0.200 <0.000167 0.2 N7300 MCE 03/08/2002 TH Iron 0.00180 2 N7300 MCE 03/08/2002 TH — Lead 0,000269 " 0,3 N7300 MCE 03/08/2002 TH Magnesium 1,42.. . 0.00119 — 1.3 N7300 MCE 03/08/2002 TH Manganese <0.300 <0.000250 0.3 N7300 MCE 03/08/2002 TH Molybdenum <1.00 <0.000833 1 N730D MCE 03/08/2002 TH Nickel <0.200 <0.000167 0.2 N7300 MCE 03/08/2002 TH Zinc <0,500 <0.000417 0.5 N7300 MCE 03/08/2002 TH

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CONFIDENTIAL, CITY_21MC100_003474336 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177747

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NYC-WTC_000177747Source: NYC Law Department, mirrored locally

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