Chain of custody for unit ventilator lead wipe samples

NYC 9/11 Public Portal Document

ATC ASSUCIAU.', EL

I 104 E 25th Street, 10th Floor New York, NY 10010 TeL 212-353-8280

I Fax 212-353-8306

REPORT DATE: .08-05-02

I CLIENT: Taylor Environmental Group. In:.

I PROJECT NAME: SCA/Stuyvesant ES 345 Chambers Street, NY

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

t SAMPLE DATE: DATE RECEIVED: DATE ANALYZED: OS-02-02 08-02-02 08-02-02

I SAMPLE MEDIA: ANALYSIS REQUIRED: Dust Wipe Sample Method EPA 3050/7420

I M ALVSTS RESULTS

I SAMPLE ID BATCH NO. SAMPLE DESCRIPTION LEAD CONCENTRATION (µg/ft) DETECTION LIMIT (µg/fc2)

I DW-01 20871 Rm 501A Ceiling Unitvent Air Damper <9.0

<9.0 9.0

9.0 Rm 231 Left Unitvent Back Wall

I DW-02 20871 <9.0 9.0 DW-03 20871 Rm 231 Right Unitvent Back Wall <9.0 µg 9.0 µg DW-04 20871 ^field Slack

LI] DW-05 20871 Field Blank <9.0 µg 9.0 µg

NOTE 1: TFTE REPORTING LIMIT (RL) IS 18.0 µg NOTE 2: Window silly 250 µg/w. HUD Guidelines for final cleaincc du9twipe samples: Floor 40 µg/ft. Window wells 400 µfftt, Exterior sorfaccs 800 µg/ft'. NOTE 3: I Blank units are in µg

CERTIFIC&'PION AND SIGNATURES

ANALYSIS PERFORMED BY:

REPORT PREPARED BY: of results obtained from the laboratory analysis• !ATC certif es that this report is an accurate and authentic report

QUALITY ASSURANCE COORDINATOR

LABORATORY DIRECTOR: ~4 /G,..' Approvs,l Program (ELAP) and by the American ATC is accredited by the New York State Department of Health Environmental Laboratory and soil samples. (ELAP #10879). (AIRA #100229). of paint, dust wipes. air Industrial Hygiene Association (AIHA) to perform analysis lead in

NYC-WTC 000102904