NYC-WTC_000200081

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: 07-22-02

CLIENT: Taylor Environmental Group, Inc. n PROJECT NAME: SCA/Stuyvesant HS 345 Chambers Street, NY 7th Floor

PROJECT NUMBER: M477-15217-29881

nI.,. : SAMPLED BY: Client

SAMPLE DATE 07-20-02 DATE RECEIVED: 07-20-02 DATE ANALYZED: 07-20-02

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

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (pg/ft’) (Pg/ff)

LW-01 20515 Room #703 East Side Unit Vent Rear <9.0 9.0

LW-02 20515 Room #703 South Side Left Unit Vent Rear <9.0 9,0

LW-03 20515 Room #703 South Side Right Unit Vent Rear <9.0 9.0

FBL-1 20515 Field Blank <9.0 ng 9.0 gg

FBL-2 20515 Field Blank <9.0 ng 9.0 ng

NOTE t; THE REPORTING LIMIT (RL) IS 18.0 ng NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 pg/ft’. Window sills 250 ng/T/ Window wells 400 (ig/fP, Exterior surfaces 800 gg/ft*. NOTE 3: Blank units are in ng

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY:

REPORT PREPARED BY:

D ATC certifies that this report is an accurate and authentic rep^of results obtained from the laboratory analysis.

QUALITY ASSURANCE COORDINATE

u LABORATORY DIRECTOR:

ATC is accredited by the New York Slate 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_003266244

NYC-WTC_000200081