NYC-WTC_000232409

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: 08-01-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 345 Chambers Street, NY

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE: 07-31-02 DATE RECEIVED: 08-01-02 DATE ANALYZED: 08-01-02

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

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETE(2nON ID NO. CONCENTRATION LIMIT (Fg/ft^) (Hg/ft’)

LWD-01 20822 Rm 601A Ceiling Unitvent Duct 11.8 9.0

LWD-02 20S22 Rm 615 Ceiling Unitvent 0 - Duct <9.0 9.0

FBL-1 20822 Field Blank <9.0 pg 9.0 pg

FBL-2 20822 Field Blank <9.0 pg 9.0 pg

NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 pg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 pg/fP, Window sills 250 pg/fP, Window wells 400 pg/fP, Exterior surfaces 800 pg/ft3 NOTE 3; Blank units are in pg

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY: /IP REPORT PREPARED BY: ATC certifies that this report is an accurate and authentic report of results obtained from the laboratory analysis.

QUALITY ASSURANCE COORDINATOR:,

LABORATORY DIRECTOR: 0^ ATC is accredited by the New York State Department of Health Environmental Laboratory Approval Program (ELAP) and by the American Industrial Hygiene Association (AIHA) to perform analysis of lead in paint, dust wipes, air and soil samples. (ELAP #10879), (AIHA #100229).

CITY_21MC100_010236453

NYC-WTC_000232409