NYC-WTC_000206354

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: Warren & Panzer Engineers, P.C. PROJECT: NYC DEP, 50 Maiden Lane LABORATORY ID #: T02-12-019 DATE OF REPORT: 12/09/02 ATHENICA ANALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 12/09/02 EFFECTIVE FILTER AREA (nun’): 385 ENVIRONMENTAL SERVICES INC. FILTER TYPE: M C E Tel. (718) 784-7490 AVERAGE G.O. AREA (mm^): 0.012820 Fax. (718) 784-4085 LABORATORY RESULTS

GHENT a 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.Zcm’) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<5(im S>5.0iJ.m

01 T02-12- On bridge second 1500 4 0.0513 0.0050 <0.0050 <19.50 NA na“ NA NA 019-4422 floor 02 T02-12- On bridge second 1500 4 0.0513 0.0050 <0.0050 <19.50 NA NA NA NA 019-4423 floor 03 T02-12- On bridge second 1500 4 0.0513 0.0050 <0.0050 <19.50 NA NA NA NA 019-4424 floor 04 T02-12- On bridge second 1500 4 0.0513 0.0050 <0.0050 <19.50 NA NA NA NA 019-4425 floor 05 T02-12- Decon 1500 4 0.0513 0.0050 <0.0050 <19.50 NA NA NA NA 019-4426

-S ANALYST LABORATORY DIRECTOR E. Sioukri 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 t ii.s time frame for a true duplicate analysis. 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 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. Test reports may not be reproduced except in full and with prior approval of AF.S 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 o o

cn

NYC-WTC_000206354