345 CHAMBERS STREET; Block: 16; Stuyvesant HS

NYC 9/11 Public Portal Document

.A1( AJ,JOLiA1.L5,11 10 104 E 25th Street, 10th Floor New York,NY 10010 TeL 212-353-8280 I. Fun:212-353-8306

REPORT DATE: 07-26-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME; SCAlStuvvesant HS 345 Chambers Street, NY

PROJECT NUMBER: M477-15217/29881

1 SAMPLED BY: Client

SAMPLE DATE: 07-26-02 DATE RECEIVED: 07-26-02 DATE ANALYZED: 07-26-02

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

1 ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION

1 ID , (O. CONCENTRATION (µ9/1) LIMIT (µrgl )

1 DW 01

DV-02 20676

20676 10th Floor Supply Air Duct by Rm 1006

10th Floor Return Air Planum by Rrn 1001 21.3

<9.0 9.0

9.0

1 DW-03

DW-04 20676

20676 10th Floor Supply Air Duct by Rrn 1009

10th Floor Return Air Duct by Rm 1017 19.8

14.2 9.0

9.0

1 DW-05

DW-06 20676

20676 10th Floor Supply Air Dutc by Rm 1024

10th Floor Return Planum, by Rm 1039 10.0

26.5 9.0

9.0

1 DW-07

DIV-08 20676

20676 Field Blank

Field Blank <9.0 µg

<9.0 µg 9.0 µg

9.0 µg

I NOTE 1:

1 THE REPORTING LIMIT (RL) IS 18.0 µg NOTE 2: Ht7D Guidelines for final clearance &.uc wipe samples: Floor 40 µghee. Window sills 250 µgifc, Window wills 400 µgJft', Exterior surfaces 800 µggltu.

1 NOTE 3: Blank units arc in µg

1 NYC-WTC 000106896