NYC-WTC_000205989

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY CLIENT: Warren & Panzer Engineers, P. C. PROJECT; NYC DEP, 150/152 Chambers Street LABORATORY ID #: T02-07-050 DATE OF REPORT: 08/01/02 ANALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 08/01/02 ATHENICA FILTER TYPE: M C E. EFFECTIVE FILTER AREA (mm^): 385 ENVIRONMENTAL SERVICES INC. AVERAGE G.O. AREA (mm^): 0.012422 Tel. (71B) 784-7490 Fax. (71B) 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 (mm^) (struc./ciii’) CONC. STRUCT. STRUCT. SPECIFY (str./mm^) 0.S<S<Snm S>5.0um lA T02-07- Entrance on east 1560 4 0.0497 0.0050 <0.0050 <20.13 NA NA“ NA NA 050-1202 side of roof 2A T02-07- Entrance on west 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 050-1203 side of roof 3A T02-07- Center area on 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 050-1204 deck 4A T02-07- South on deck 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 050-1205 5A T02-07- North on deck 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA ^0-12Q6

ANALYST LABORATORY DIRECTOR E. Sioukri Spiro Dongaris

LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955

o Athenica 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. H 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 supplied solely for t6e convenience of the client. The report relates only to items tested This report must not be used tn claim product endorsement by NVLAP or any other agency of the U.S. Government. Test reports may not be reproduced S except in full and with prior approval of AES Inc. 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 o CO CO

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NYC-WTC_000205989