NYC-WTC_000228683

NYC 9/11 Public Portal Document

Customer: ATC Associates SCILAB FVU. SEKVKE ENVIRONMEfITAL LABORATORIES Workorder No. 0201-00105

Sample: 010 M833-1/14-10M: 6TH FLOOR HALLWAY 30 SEC FLUSH (Continued)

Parameter Meth^ Results PQL Analyst Analysis Date Qua! Lead, Furnace EPA 200.9 ND mg/L 0.003 TDJ 01/18/02 Copper 200.7, EPA 1987 0.2452 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 0.1201 mg/L 0.100 TDJ 01/17/02 Zinc 200.7, EPA 1987 0.1125 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.0849 mg/L 0.007 TDJ 01/17/02

Sample: Oil M833-1/14-11M: 3RD FLOOR HALLWAY 1ST DRAW Date; 1/14/02 Matrix: WATER Parameter Method Results Units PQL Analyst Analysis Date Qu^ Lead, Furnace EPA 200.9 ND mg/L 0.003 TDJ 01/18/02 Copper 200.7, EPA 1987 0.7124 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 ND mg/L 0.100 TDJ 01/17/02 Zinc 200,7, EPA 1987 0.4050 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.0499 mg/L 0.007 TDJ 01/17/02

Sample: 012 M833-1/14-12M: 3RD 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 0.004 mg/L 0.003 TDJ 01/18/02 Copper 200.7, EPA 1987 0.4718 mg/L 0.005 TDJ 01/17/02 Iron 200.7, EPA 1987 0.2819 mg/L 0.100 TDJ 01/17/02 Zinc 200.7, EPA 1987 0.2352 mg/L 0.03 TDJ 01/17/02 Manganese 200.7, EPA 1987 0.1001 mg/L 0.007 TDJ 01/17/02

Sample: 013 M833-1/14-13M: 2ND FLOOR HALLWAY 1ST DRAW 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

Certifications: MA: MA069 NY:10982 CT:PH0119 RI:A45 CA:2O5O ME:MA069 NJ: 59744 Page: 4 of 6

CITY_21MC100_002901327

NYC-WTC_000228686