NYC-WTC_000206341

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: Warren & Panzer Engineers, P.C. PROJECT: NYC DEP, 75 Maiden Lane ATHENICA LABORATORY ID #: T02-08-130 DATE OF REPORT: 08/26/02 DATE OF ANALYSIS; 08/26/02 ENVIRONMENTAL SERVICES INC. ANALYT. METHODOLOGY: AHERA FILTER TYPE: M C E. EFFECTIVE FILTER AREA (mm^): 385 Tel. (718) 784-7490 Fax. (718) 784-W8S AVERAGE G.O. AREA (mm^): 0.012422

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./cm’) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<5|Tm S>S.0|im 01 T02-08- In Hallway 1470 5 0.0621 0.0042 <0.0042 <16.10 NA nTT” NA NA 130-1889 entrance to roof 02 T02-08- Near Decon 1470 5 0.0621 0.0042 <0.0042 <16.10 NA NA NA NA 130-1890 03 T02-08- Near ledge by 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 130-1891 A.C. Unit 04 T02-O8- Near A.C. Unit 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 130-1892 05 T02-08- Near Motor 1680 4 0.0497 0.0046 <0.0046 <20.13 NA NA NA NA 130-1893 room

ANALYST LABORATORY DIRECTOR E. Dimitrakas Spiro Dongaris

LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955 o Athenica Environmental Services Inc (AES), is responsible only for information pertaining tc 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. K I 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 to supplied solely for the convenience of the client. S The report relates only to items tested ITiis report must not be used to claim product endorsement by NVLAP or any other agency of the U.S. Government fest reports may not be reproduced o 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 I o o co o o o to

NYC-WTC_000206341