NYC-WTC_000206220

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: WaiTen & Panzer Engineers, P.C. PROJECT: NYC DEP, 17 John Street LABORATORY ID #: T02-10-049 DATE OF REPORT: 10/09/02 ATHENICA ANALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 10/09/02 EHVlftONMENTAU SERVICES INC. FILTER TYPE: M C E. EFFECTIVE FILTER AREA 385 Tel. (718) 784-7490 AVERAGE G.O. AREA (mm’): 0 013838 Fax. (718) 784-4085

LABORATORY RESULTS

CLIENT # LAB. ID # LOCATION VOLUME G.O.’s AREA ANALYT. TOTAL TOTAL AIR AIR ASBEST. AMPHIB. (It) ANAL AN ALY SENSITTV. ASBESTOS ASBESTOS CONC. CONC. TYPE ASBEST YZED ZED (struct./cm’) AIRCONC. FILTER FOR FOR CHRYS. TYPE (mm’) (struc./cm’) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<5|im S>5.0iim 01 T02-10- Personal decon 1680 4 0.0554 0.0041 <0,0041 <18.07 NA NA~ NA NA 049-2923 clean room 02 T02-10- North area on roof 1680 4 0.0554 0.0041 <0.0041 <18.07 NA NA NA NA 049-2924 03 T02-10- East area on roof 1680 4 0.0554 0.0041 <0.0041 <18.07 NA NA NA NA 049-2925 04 T02-10- West area on roof 1680 4 0.0554 0.0041 <0.0041 <18.07 NA NA NA NA 049-2926 05 T02-10- South area on roof 1680 4 0.0554 0.0041 <0.0041 <18.07 NA NA NA NA 049-2927

ANALYST LABORATORY DIRECTOR E. Dimitrakas Spiro Dongaris

o LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955 K I LO Aihenica Environmental 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 time frame for a true duplicate analysis. S 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 o supplied solely for the convenience of the client. o I'hc report relates 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 o except in full and with prior approval of AES Inc. I o The liability of Athenica Environmental Services Inc. with respect to the services charged, shall in no event exceed the amount of the invoice. o co o o co co

NYC-WTC_000206220