NYC-WTC_000200137

NYC 9/11 Public Portal Document

I ATC ASSOCIATES, INC 104 E 25th Street, 10th Floor New York, NY 10010 B Tel. 212-353-8280 Fax 212-353-8306 (S

REPORT DATE: 09-03-02

P CLIENT; Taylor Environmental Group, Inc li PROJECT NAME: NYC SCA/Stuyvesant HS 345 Chambers St., NY, NY

SAMPLED BY: Client

SAMPLE DATE: 08-30-02 DATE RECEIVED: 08-30-02 DATE ANALYZED: 08-30-02

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

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (ft»^ (Pg/ft")

LW-01 21705 Rm 132A Floor at Entrance <9.0 9.0

LW-02 21705 Rm 132A Desk Top <9.0 9.0

FBL-1 21705 Field Blank <9.0 gg 9.0 pg

FBL-2 21705 Field Blank <9.0 pg 9.0 pg

NOTEl: THE REPORTING LIMIT (RL) IS 18.0 pg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 pg/tf. Window sills 250 pg/ft’. Window wells 400 pg/fF, Exterior surfaces 800 pg/lF. NOTE 3: Blank units are in pg

nu CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY: '"1 J REPORT PREPARED BY:

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

QUALITY ASSURANCE COORDINATOR:

u LABORATORY DIRECTOR: Wz - ATC is accredited by the New York State Department of Health Environmental Laboratory Approval Program (ELAP) and by the American

Q Industrial Hygiene Association (AHA) to perform analysis of lead in paint, dust wipes, air and soil samples. (ELAP #10879), (AHA #100229).

CITY_21MC100_003266601

NYC-WTC_000200137