NYC-WTC_000231431

NYC 9/11 Public Portal Document

^"^ciLabTob C I_____ J cz: r Client Name: Riverpoint, Inc. Table I Summary of Transmission Electron Microscopy (TEM) Results for Asbestos (air) 101171; WTCDEP; WTC Structure Structure Air Area * Analytical Asbestos Structures Detected Density Concentration Type SciLab Client Dilution Filtered Analyzed Sensitivity (Microns) (stnic/sq. mm.) (stnic/cc air) of Sample # Sample # Factor (liters) (sq. mm.) (struc/cc air) O.5-5.O >5.0 Total >5.0 Total >5.0 Total Asbestos

01 201006 675 .1 0.0057 0.0 0.0 0.0 <10 <10 <0.0057 <0.0057 NSD Vesey/West Broadway 02 051007 720 .1 0.0053 0.0 0-0 0.0 <10 <10 <0.0053 <0.0053 NSD Fulton/Church 03 101008 666 .1 0.0058 0.0 0.0 0.0 <10 <10 <0.0058 <0.0058 NSD West/Albany 04 011009 652 .1 0.0059 0.0 0.0 0.0 <10 <10 <0.0059 <0.0059 NSD Park PVChurch 05 021009 652 .1 0.0059 0.0 0.0 0.0 <10 <10 <0.0059 <0.0059 NSD Park Pl/Greenwich 06 200910 507 .1 0.0076 0.0 0.0 0.0 <10 <10 <0.0076 <0.0076 NSD Vesey/West Broadway 07 051011 732 .1 0.0053 0.0 0.0 0.0 <10 <10 <0.0053 <0.0053 NSD Fulton/Church 08 011012 675 .1 0.0057 0.0 0.0 0.0 <10 <10 <0.0057 <0.0057 NSD Park Pl/Church 09 021012 652 .1 0.0059 0.0 0.0 0.0 <10 <10 <0.0059 <0.0059 NSD Park Pi/Greenwich 10 021014 630 .1 0.0061 0.0 0.0 0.0 <10 <10 <0.0061 <0.0061 NSD Park Pl/Greenwich 11 051015 690 .1 0.0056 0.0 0.0 0.0 <10 <10 <0.0056 <0.0056 NSD Fulton/Church 12 201015 705 .1 0.0055 0.0 0.0 0.0 <10 <10 <0.0055 <0.0055 NSD o Vesey/West Broadway H 13 051016 705 .1 0.0055 0.0 0.0 0.0 <10 <10 <0.0055 <0.0055 NSD Fulton/Church to 14 081016 700 .1 0.0055 0.0 0.0 0.0 <10 <10 <0.0055 <0.0055 NSD s o Gateway Plaza o o * concentration represented by the detection of 1 structure I ** not analyzed o o NSD: No Asbestos Structures Detected Reviewed By: ; Analyzed By:. Date: 10/23/01 co co Aleksandr Barcngolts co o NVLAP#: 200546-0 co

NYC-WTC_000231558