NYC-WTC_000228683

NYC 9/11 Public Portal Document

Eight School Street SCILAB Weymouth, MA 02189 FULL SERVICE ENVIRONMENTAL LABORATORIES 781-337-9334 Laboratory Report Report Date 1/18/02 Customer: ATC Associates 104 East 25th Street Workorder No. 0201-00105 New York, NY 10010

Attention: Andreas Andreou Subject; M833; METALS Sample: 001 M833-1/14-1M: lOTH FLOOR HALLWAY 1ST DRAW Date: 1/14/02 Matrix: WATER Parameter Method Results Unite PQL Analyst Analysis Date Qual Lead, Furnace EPA 200.9 0.005 mg/L 0.003 TDJ 01/18/02 Copper 200,7, EPA 1987 0.4600 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 0.5017 mg/L 0,100 TDJ 01/17/02 Zinc 200.7, EPA 1987 0.1770 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.0746 mg/L 0.007 TDJ 01/17/02

Sample: 002 M833-1/14-2M: lOTH FLOOR HALLWAY 30 SEC FLUSH Date: 1/14/02 Matrix: WATER Parameter Method Results Units PQL Analyst Analysis Date Qual Lead, Furnace EPA 200.9 ND mg/L 0.003 TDJ 01/18/02 Copper 200.7, EPA 1987 0.3895 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 0.2634 mg/L 0.100 TDJ 01/17/02 Zinc 200.7, EPA 1987 0.1909 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.0749 mg/L 0.007 TDJ 01/17/02

Sample: 003 M833-1/14-3M: 9TH FLOOR HALLWAY 1ST DRAW Date: 1/14/02 Matrix: WATER Parameter Method Results Unite PQL Analyst Analysis Date Qu^ Lead, Furnace EPA 200.9 0.003 mg/L 0.003 TDJ 01/18/02 Copper 200.7, EPA 1987 0.4917 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 0.2807 mg/L 0.100 TDJ 01/17/02 Zinc 200.7, EPA 1987 0.3543 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.0717 mg/L 0.007 TDJ 01/17/02

Certifications; MA:MA069 NY: 10982 CT: PH0119 RJ:A45 CA:2050 ME:MA069 NJ: 59744 Page: 1 of 6

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NYC-WTC_000228683