NYC-WTC_000206625

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: Warren & Panzer Engineers, P.C. PROJECT: NYC DEP, 90 Washington Street ATHENICA LABORATORY ID #: T02-11-032 DATE OF REPORT: 11/06/02 ENVIRONMENTAL SERVICES INC, ANALYT. METHODOLOGY: AHERA DATE OF ANALYSIS: 11/06/02 Tel. (718) 784-7490 FILTER TYPE: M C E. EFFECTIVE FILTER AREA (mm’): 385 Fax. (718) 784-4085 AVERAGE G.O. AREA (mm’): 0 013433

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./ciii^) AIR CONC. FILTER FOR FOR CHRYS. TYPE (mm’) (struc./cm’) CONC. STRUCT. STRUCT. SPECIFY (str./mm’) 0.5<S<S)rm S>5.0|rm 01 T02-11- In decon clean rm 1440 4 0.0537 0.0050 <0.0050 <18.61 NA N^ NA NA 032-3861 02 T02-11- Staircase roof 1440 4 0.0537 0.0050 <0.0050 <18.61 NA NA NA NA 032-3862 entrance 03 T02-11- West side of roof 1440 4 0.0537 0.0050 SAMPLE OVERLOADED WITH PARTICULATE MATERIAL 032-3863 RENDERING IT UNACCEPTABLE FOR ANALYSIS 04 T02-11- South side of roof 1440 4 0.0537 0.0050 SAMPLE OVERLOADED WITH PARTICULATE MATERIAL 032-3864 RENDERING IT UNACCEPTABLE FOR ANALYSIS 05 T02-11- South west roof 1440 4 0.0537 0.0050 SAMPLE OVERLOADED WITH PARTICULATE MATERIAL 032-3865 RENDERING IT UNACCEPTABLE FOR ANALYSIS

ANALYST LABORATORY DIRECTOR E. Dimitrakas Spiro Dongaris

o LABORATORY CERTIFICATION NUMBERS: NVLAP 101958, ELAP 10955 H K Athenica Environmental Services Inc. (AES), is responsible only for information pertaining to samples taken by its employees.. I Air sampling cassettes will be stored for sixty (60) days. AES Inc,, should be notified within this time frame for a true duplicate analysis. to If AES Inc., did not conduct the sampling, the reported airborne concentration was derived based on information provided by the client. Under these circumstance.s, the air concentration data is S supplied solely for the convenience of the client. o 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, fest reports may not be reproduced o except in full and with prior approval of AES Inc. o I The liability of Athenica Environmental Services Inc. with respect to the seivices charged, shall in no event exceed the amount of the invoice. o o to rD co co

NYC-WTC_000206625