NYC-WTC_000206503

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

EN IQA CLIENT: Warren & Panzer Engineers, P. C. PROJECT: NYC DEP, 2 South End Ave. NYC ENVIRONMENTAL SERVICES IN( . LABORATORY ID #: T03-03-035 DATE OF REPORT: 03/25/03 Tel (718) 784-7490 ANALYT. METHODOLOGY; AHERA DATE OF ANALYSIS: 03/25/03 Fax (718) 784-4085 FILTER TYPE: MCE EFFECTIVE FILTER AREA (mm^): 385 AVERAGE G.O. AREA (mm^): 0 012820

LABORATORY RESULTS

CLIEN I # LAB. ID # LOCATION VOLUME (i.O.s area ANALY 1. TOTAL TOTAL AIR AIR ASBEST. AMPHIB. (It) ANAL ANALY SENSITIV. ASBESTOS ASBESTOS CONC. CONC. TYPE ASBEST YZED ZED (struct./cm’) AIR CONC. FILTER FOR FOR CHRYS. TYPE (min’) (struc./cm’) CONC. STRUCT. STRICT. .SPECIFY (str./mm’) 0.5<S<5|jni S>5.0^m (H T03-03- North side roof IW 4 (10513 0.0046 <0.0046 <19.50 NS NA NA 035-513 (J2 T03-03- Middle roof 1620 T O.O513 0.0046 <0.0046 <19.50 NA NA NA NA 035-514 03 T034)3- 2"<* north side roof 1620 A 0.0513 0.0046 <0.0046 <19.50 NA NA NA NA 035-515 (14 T03-03- South west roof 1632 4 0.0513 0.0046 <0.0046 <19.50 NA NA NA NA 035-516 (15 1'03-03- South east roof 1632 A 0.0513 0.0046 <0.0046 <19.50 NA NA NA NA 035-517

ANALYST LABORATORY DIRECTOR E. Sioukri Spiro Dongaris

LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955

Athcnica Environ mental Services Inc. (AES), is responsible only for information pertaining to samples taken by its employees. Air sampling cassettes will be stored for sixty (60) days. AES Inc., should be notified within this lime frame for a true duplicate analysis. o If AES Inc., did not conduct the sampling, the reported airborne concentration was derived based on information provided by the client. Under these circumstances, the air concentration data is H supplied solely for the convenience of the client. The report relaie.s only to items tested. This report must not be used to claim product endorsement by NVI.AP or any other agency of the U.S. Government. Test reports may not be reproduced except in full and with prior approval of AES Ine. The liability of Athenica Environmental Services Inc. with respect to the services charged, shall in no event exceed the amount of the invoice.

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NYC-WTC_000206503