NYC-WTC_000205970

NYC 9/11 Public Portal Document

AIRBORNE ASBESTOS ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

CLIENT: Warren & Panzer Engineers. P. C. PROJECT; NYC DEP, 97 Chambers LABORATORY ID #: TO2-O8-01O DATE OF REPORT: 08/03 02 ATHENICA ANALYT. METHODOLOGY: AHEILA DATE OF ANALYSIS: 08/03/02 ENVIRONMENTAL SERVICES INC. FILTER TYPE: M C E. EFFECTIVE FILTER AREA (mm^): 385 T.U AVERAGE G.O. AREA (mm^): 0.012422 TM* (7X8/ 78^7^WJ Fax. (718) 78AA085

LABORATORY RESULTS

CLIENT LAB. ID LOCATION VOLUME G.O.’s AREA ANALYT. TOTAL TOTAL AIR AIR ASBEST. AMPHIB. # # (It) ANAL AN ALY SENSITIV. ASBESTOS ASBESTOS CONC. CONC. TYPE ASBEST YZED ZED (struct./ein^) AIR CONC. FILTER FOR FOR CHRYS. TYPE (mm') (struc./cm’) CONC. STRUCT. STRUCT. SPECIFY (str./mm') O.S<S<5)j.m SSS.Opm OOIA T02-08- Entrance to roof 1650 4 0.0497 0.0047 <0.0047 <20.13 NA NA NA NA 010-1249 002A T02-08- Center area of 1650 4 0.0497 0.0047 <0.0047 <20.13 NA NA NA NA 010-1250 roof 003A T02-08- East side of roof 1650 4 0.0497 0.0047 <0.0047 <20.13 NA NA NA NA 010-1251 004A T02-08- North end of 1650 4 0.0497 0.0047 <0.0047 <20.13 NA NA NA NA 010-1252 roof 005A T02-08- South end of 1650 4 0.0497 0.0047 <0.0047 <20.13 NA NA NA NA 010-1253 roof

Ay 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 this time frame for a true duplicate analysis. H if AES Inc., did not conduct the sampling, the reported airborne concentration was denved based on information provided by the client Under these circumstances, the air concentration data is supplied solely for t6e convenience of the client. to The report relates only to items tested. This report must not be used to claim product endorsement by NVl.AP nr 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 to re to co

NYC-WTC_000205970