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

NYC-WTC_000095098 SO SMITHTOWN AVENUE RONKONKOMA, HONE: (63 1) 5803191 AREA: CSIMILE: (63 1) 580-3195 ENVIROHEALTH.ORG 00-10233 i Sample #: ENVIROSCIENCE. a ; ‘TEM AIR SAMPLE RESULTS CONSUL’ ELAP# 11681 NVLAP #20083 1-0 Tech Clean SAMPLE DATE: Septesnber 24, 2001 TANTS, ING. [Y= JPROJECT NAME: AMEX 22 Thames RECEIVED DATE: September 25, 2001 NEW YORK 11779 Ambient Third Floor SAMPLER: B. Gallagher CUSTODY #: B-05-03 re i. ‘TEM Ais nu. Sample Location _Start | Ext | Run Time eo a one Filter Conc. | Sensitivity | Als Conc, _| minutes | Avg. S/oum2 Slice. 16:35 | 19-20 165 Va 1155 00 0.0042 __{ <Sensitivity TEM A19 Section 7, CS. Boo. ve. ee 16:37 | 20:40 | _ 243 9. 42587 9.0 0.0022 _| _<Sensitivity “TEM A20|Section 3, CIS 9 _ 16:40 | 20-44 | 244 8 1952 0.0 0.0025 _| <Sensitivity | puter room ee eee 37:05 | 20:47 172 |... 8.3 1462 0.0 _ 9.0033 _| <Sensitivity | { i TEM A21 | Comput . TEM A22/ Spear Sot __ 48:25 1 20:50} 145 |. 18 1460 0.0 - 29034 | Sensidvity | §316883195 i ? | = tne ee tel Analyzed by: Samples were an Diffraction (SAED), Concentration on the filter the effective filter area The date pertaining The ait filter conc accuracy of the The sane cone ‘The samples 09: action is ced A result of ge .@ 07 S=Ashestos structures,comcubic centimeters, mmenillimeter Date Analyzed: PLE <= less than, Flow Rate in liters per minute using Philips 400T ‘Transaission Electcon Microscope. Asbestos identification is detennined by the morphology, visual Selected Ares Electcon aad Efementat Analysis using an Energy Dispersive X-ray Analyzer (2DAX). is calculated by taking the number uf usbestos structures and dividing by the atea analyzed. Air concentration is calculated by amltiplying va HFA) by the filter concenteation and then dividing by the volume of air collected in cubte centimeters (oc). these calculations can be found on the Asbestos Count Shoot. relates only to air fiber content. When samples are submitted by an outside agency for analysis, Eaviroscience. can only guarantee the roncentration. This report may nat be reproduced without the express. permission of Enviroscience. ‘This report can not be used to claim oducts by NVLAP or any apency of the US. Government. ed in the response action area demonstrated a fiker concentration of asbestos less than seventy structures per square millimeter. This response coniplete according to EPA 40 CFR 763. tractures per square mnillimeter is only applicable ¢o the area analyzed. Test results wndy reflect conditions at the time samples were taken. @9/28/26@i 18:14 TROSCIESCECNSL TAN PAGE 15 NYC 9/11 Public Portal Document