NYC-WTC_000206200

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: Warren & Panzer Engineers, P. C . PROJECT: NYC DEP,15 John Street LABORATORY ID #: T02-08-066 DATE OF REPORT: 08/14/02 ANALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 08/14/02 ATHENICA FILTER TYPE: M C E. EFFECTIVE FILTER AREA (mm^): 385 ENVIRONMENTAL SERVICES INC. AVERAGE G.O. AREA (mm’): 0.012422 Tel. (718) 784-7490 Fax. (718) 784-4085

LABORATORY RESULTS

CLIENT LAB. ID LOCATION VOLUME G.O.’s AREA ANALYT. 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 (struc./cin’) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<5pm S>5.0pm 01 T02-08- On adjacent roof 1620 4 0.0497 0.0048 <0.0048 <20.13 NA N^ NA NA 066-1534 right side 02 T02-08- On adjacent roof 1620 4 0.0497 0.0048 <0.0048 <20.13 NA NA NA NA 066-1535 left side 03 TO2-O8- On adjacent roof 1620 4 0.0497 0.0048 <0.0048 <20.13 NA NA NA NA 066-1536 center 04 T02-08- On adjacent roof 1620 4 0.0497 0,0048 <0.0048 <20.13 NA NA NA NA 066-1537 by ledge 05 T02-08- On adjacent roof 1620 4 0.0497 0.0048 0.0096 40.25 0.0048 0.0048 Chrys. NA 066-1538 10ft. ledge

ANALYST 2M LABORATORY DIRECTOR E. Dimitrakas Spiro Dongaris

LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955

Athenica Environmental Services Inc. (AES), is responsible only for information pertaining to samples taken by its employees. o Air sampling cassettes will be stored for sixty (60) days. AES Inc., should be notified within this time frame for a true duplicate analysis. H If AES Inc., did not conduct the sampling, the reported airborne concentration wa.s derived based on information provided by the client. Linder these circumstances, the air concentration data is K 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. l est reports may not be reproduced except in full and with prior approval of AES Inc. S 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 o I o

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NYC-WTC_000206200