Cover letter enclosing air quality reports, Trinity Place, Jan 2002

NYC-WTC_000095096 ENV CONSU SO SMITHTOWN AVENUE RON . ONE: (631) $803191 ta. Feinity SIMILE: (631) 580-3195 AREA: Main Trading Floor ENVIROHEALTH. ORG ROSCIENCE LTANTS, INC. (“** Tech Clean PROJECT NAME: American Stock Exchan; AP #11681 NVLAP #2005310 jp oecceenee cae ete sna ceemintne ne nee cones cinema eters eee ‘TEM AIR SAMPLE RESULTS A, New YorK 11779 - 86 Trinity CLIENT #: 08-10233 Sample # Sample Location Start SAMPLE DATE: September 19, 2001 SAMPLER: CUSTODY #: ge RECEIVED DATE: September 21, 2001 Page 1 of 3 L, Savarese/C. Gilbert 8-04-06 end. | Run Time Flow Ratel Votame Filter Conc.| Sensitivity} Ade Cone. i THM F2 | Trad minutes Avg. Liters Sfnum2 Séce Séce aoers Steen Floor Post 5 #10 6:20 ing Floor Post 12 414 . we eceece cesene of 33D TEM F3 | Main Trad 110 10 1200 0.0 0.0041_{ <Sensitivity | 120 10 1200 0.0 0.0041 | <Sensitivity ¢ Floor Post 8, Section 1. a 6:35 125 10 1250 9.9 G.0039_|_<Sensitivity | . TEM F4 | Main T: TEM FS | Main Trade Floar Post 9, Section B 6:25 13} 10 1370 9.0 | 9.0035 _| <Sensitiviey. m Post 21, MF 39 7:00 148 10 129 10 1450 6.0 9.0034 _ | <Sensitivity | ee ce te oe betes memes 8 £200 0.9 G.O04i_ | Sensitivity | i TEM £7 | Red Roo TEM F8 | Red Room Post 22, ME 15 7:00 m Post 22, Section A. oe ee cee eeee ter nee f. O45, | B45 8 8 8: § Floor, Upper Level, Section E, Monitor 16 6:30 | 8:35 | 9: 8 9 135 10 1350 9.0.1 0.004] | <Sensitivity. 0.0 0.0035 _| <Sensitivity TEM F9 | 15th Floor i | TEM f'10| 15th Floor 9:20 120 10 1200 0.0 0.0041. | <Sensitivity | eee meee wees ee et) See eT Ate RD OY MIE Hay nm omeseel [ us | 0 —_ 1250 D0 0.0039 _| <Sensitivity il TEM FLL LL. i 9:35 } 11:30 40 | 11:40 | 120 10 1200 0.0 0.0041 _|_<Sensitivity ; ances were Diffraction Conceatration oa the filter the effective filter The data pertsinin: The ai filter cnet accuracy of tho eodorsement tp The samples colt action tome ee collected in the response action area demonstrated a filter concentration of asbestos Jess complete according to EPA 40 CFR 763. using Philips 400T Transmission Electron Microscope. Asbestos identification is Elemental Aealysis using on Energy Dispersive X-ray Analyzer (EDAX). ter is calculated by taking the number of asbestos structures and dividing by the ar area CEFA) by the filter concentration and then dividiag by the volume of air collected to these calculations can be foand on the Asbesios Count Sheet. relates only to air fiber content. When samples are submitted by an outside a; oncentration. This report may not be reproduced without the express permission of by NVLAP or any agency of the U.S. Government. chures per square millimeter is only applicatie co the area analyzed. Test results only I: Sete ON _Date Analyzed: $22. w SxAshestos structures,ccecybic centimeters, mnvemillimeter <= fess than, Flow Rate in liters per mimste determined by the morphology, vistal Selected Arca Electron ea analyzed. Air concentration is calculated by multiplying in cubic centimeters (cc). agency for analysis, Enviroscience. can only Enviroscience. This report can not be used to claim guatantee the than seventy structures per square millimeter. This response reflect conditions at the time samples were taken. 4 99/28/20E1 18:14 631 2823195 ENVY TROSCIENCECNSL TAN PAGE 13 NYC 9/11 Public Portal Document