Chain of custody form, Trinity Place samples, Oct 2001

NYC-WTC_000095139 ENVIROSCIENCE TEM AIR SAMPLE RESULTS CONSULTANTS, ING. (LENT: Tech Clean SAMPLE DATE: Sepiember 30, 3001 2150 SMinrown AVENUE PROJECT NAME: Amex RECEIVED DATE: September 21. 2001 RONKONKOMA, New Yor«K 11779 ; Ambient fONE: G3 1) 580-3191 . x . FACSIMILE: (631) 5803195 AREA: 22 Thames, Sth Floor SAMPLER: B. Gallagher WYAW.ENVIROHEALTH.ORG CLIENT @: 20-10233 CUSTODY #: B-04-04 ELAP# 11681 NVLAP#200531-0 ~_ wee eee | Sample # Sample Eacation Start_| a _, Rus Time} Flow Rate! Volume | Filter Conc. | Sensitivity | Air Conc. minutes Avg. | Liters Siam2_ Sfoc Sicc are avttemed TEM AI | Cubical #52 ‘ 16:58 | 19:23 145 9 1305 63.13 | [email protected] 6.018 - a fr etaet TEMA2|Rom 909 {16:35 | 19301 175 | 95 | 1662.5 | .88.38).| G09 | ao2 | TEM A3 |Cubical#49 . . 16:56 | 1935| 154 | 95 | 1463 | 020° | 00033 | 0.053 TEM Ad | Cassalegei Room -. 16:40 | 19:50] 190 2.25 | 13775.| 101.01 | 9.0035 | 9028 | . TEM AS |Cubical 39 0 16:42 | 19:53] 191 | 7.25 | 13984 | 37.88 0.0035 0.01} Analyzed by: LENA S CE Date Analyzed: 4.22 -O/ <= less than, Flow Rate in liters per mimute Samples were analyzed using Philips 400T ‘icansmission Electron Microscope. Ashesins identification is determined by the morphology, visual Selected Area Electeon Diftcaction (SAED), aud Elemental Analysis using an Energy Dispersive X-ray Analyzer (EDAX). Concentration on the fitter is calculated by taking the aamber of asbestos structures and dividing hy the area analyzed. Alt concentration is calculated by multiplying the effective fiker ares (EFA) by the filter concentration and then dividing by the volume of air collected in cubic centimeters (cc). ‘The data pertaining to these calculations can be found on the Asbestos Count Sheet. ‘The air filter concentration relates only to air fiber content. When samples are submitted by an outside agency for analysis, Raviroscience. cau only guarantee the accuracy of the filter concentration. This report may not be reproduced without the express permission of Enviroscience. This report can not be used to claim ‘eadorserment of products by NVLAP ox any agency of the U.S. Government. ‘Tho samples collected in the sesponse action arcs demonstrated 2 filtes concentration of asbestos less than seventy structures per square millimeter. This response action is considered complete according to EPA 40 CFR 763. : A xesult of zero structures pex square millitneter is only spplicadle to the area snalyzed, Test results only reflect conditions at the time saxoples were taken. NYC 9/11 Public Portal Document 89/26/2281 16:14 6315883135 ENVIROSCIENCECNSLTAN PAGE 23