8 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 2 pages
Lead dust wipe analysis, M833 site, March 2002
Machine-extracted title · confidence 95%Laboratory results for lead concentration in dust wipe samples collected on March 15, 2002.
NYC-WTC_000180120–000180121Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ATC ASSOCIATES, INC 104 E 25th Street, 10th Floor New York, NY 10010 Tel. 212-353-8280 Fax 212-353-8306
REPORT DATE: 03-18-02
CLIENT: NYC BOE
PROJECT ADDRESS: M833/100 Trinity Place, NY, NY 10006
PROJECT NO: 41617-0563 SAMPLED BY: Chacko Mathew
SAMPLE DATE: 03-15-02 DATE RECEIVED: 03-16-02 DATE ANALYZED: 03-16-02
SAMPLE MEDIA: Dust Wipe Sample ANALYSIS REQUIRED: Method EPA 3050/7420
ANALYSIS RESULTS
SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (pg/tV) (pg/tV)
01 9728 Classroom/Office Roo m 1002 <3.0 3.0
02 9728 Nineth Floor by Center Floor * <9.0 9.0
03 9728 Cafeteria Floor by Wall 3 Floor <9.0 9.0
04 9728 Seventh Floor Hallway by Rm 706 Floor > <9.0 9.0
05 9728 6th Floor Classroom 607 Floor <9.0 9.0
06 9728 5th Floor Hallway by Elevator Floor > <9.0 9.0
07 9728 4th Floor Classroom 402 Floor <9.0 9.0
08 9728 3rd Floor Hallway by Rm 305 Floor <9.0 9.0
09 9728 Auditoirum by Stage Floor <9.0 9.0
10 9728 Outside by Main Entrance Lobby Floor <9.0 9.0
11 9728 Blank <9.0 gg 9.0 gg
NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 pg NOTE 2: HUO Guidelines for final clearance dusi wipe samples: Floor 40 pg/ft’, Window sills 250 pgTl/ Window wells 400 pg/ft’. Exterior surfaces 800 pg/ftL NOTES: Blank units are in pg
CONFIDENTIAL, CITY_21MC100_003463297 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180120
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NYC-WTC_000180120Source: NYC Law Department, mirrored locally
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