NYC-WTC_000206258

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY CLIENT: Warren & Panzer Engineers, P.C. PROJECT: NYC DEP, 41 John Street ATHENICA LABORATORY ID #: T02-09-035 DATE OF REPORT: 09/11/02 ENVIRONMENTAL SERVICES INC. AN ALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 09/11/02 Tel. (718) 784-7490 FILTER TYPE: M.C.E. EFFECTIVE FILTER AREA 385 Fax. (718)784-4085 AVERAGE G.O. AREA (mm’): 0.013771

LABORATORY RESULTS

CLIENT LAB. ID LOCATION VOLUME G.O.’s AREA ANALYT. TOTAL TOTAL AIR AIR ASBEST. AMPHIB. # # (It) ANAL AN ALY SENsrnv. ASBESTOS ASBESTOS CONC. CONC. TYPE ASBEST YZED ZED (struct./cin’) AIR CONC. FILTER FOR FOR CHRYS. TYPE (mm’) (struc/cm^) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<5|am S>5.0pm 01 IWA T02-09- On roof center of 1460 4 0.0551 0.0048 <0.0048 < 18.15 NA NA NA NA 035-2244 work area 02IWA T02-09- On roof north 1460 4 0.0551 0.0048 <0.0048 < 18.15 NA NA NA NA 035-2245 section of work area 03IWA T02-09- On roof south 1460 4 0.0551 0.0048 <0.0048 < 18.15 NA NA NA NA 035-2246 section of work area 04IWA T02-09- On roof west 1460 4 0.0551 0.0048 <0.0048 < 18.15 NA NA NA NA 035-2247 section of work area 05IWA T02-09- On roof 4Ft of 1460 4 0.0551 0.0048 <0.0048 < 18.15 NA NA NA NA 035-2248 door entrance of roof

ANALYST LABORATORY DIRECTOR E. Sioukri Spiro Dongaris o H LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955 K I Athenica Environmental Services Inc. (AES), is responsible only for information pertaining to samples taken by its employees. S Aii sampling cassettes will be stored for sixty (60) days, AES Ine., should be notified within this time 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 o o supplied solely for the convenience of the client. I The report relates only to items tested. This report must not be used to claim product endorsement by NVLAP 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. 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 cn cn

NYC-WTC_000206258