NYC-WTC_000231961

NYC 9/11 Public Portal Document

Cusfomerhocused SolufIons 1430 Broadway, 10th Fl. New York, New York 10018 Phone: (212) 221-7822 - Fax: (212) 221-7840

LMDC Air Metals Profile

Client Lower Manhattan Development Corporation Job Number 46600-0000-00001 Address One Liberty Plaza, 20th Floor Date Received 9/1/2005 New York, NY 10006 Date Analyzed 9/1/2005 Collected By O. Kuepper/V. Bajomo Job Location 130 Liberty Street Collected 8/31/2005 Rotometer Standard

Lab ID 010503399-0003 Matrix Air Field ID M-083105-1317 Location Greenwich Street

Parameter Start End Flow Volume Result Units MDL MCL Flag Barium, Total 16:09 16:08 4 5756 <0.87 Hg/m3 0.87 500 Beryllium, Total 16:09 16:08 4 5756 <0.035 Hg/m3 0.035 1 Cadmium, Total 16:09 16:08 4 5756 <0.035 Hg/m3 0.035 2.5 Chromium, Total 16:09 16:08 4 5756 <0.087 Hg/m3 0.087 500 Copper, Total 16:09 16:08 4 5756 <0.17 Hg/m3 0.17 500 Lead, Total 16:09 16:08 4 5756 <0.087 Hg/m3 0.087 30 Manganese, Total 16:09 16:08 4 5756 <0.13 |jg/m3 0.13 1000 Nickel, Total 16:09 16:08 4 5756 <0.17 Hg/m3 0.17 500 Zinc, Total 16:09 16:08 4 5756 <0.17 Hg/m3 0.17 2500

Lab ID 010503399-0004 Matrix Air Field ID M-083105-1318 Location Greenwich Street/Liberty Street

Parameter Start End Flow Volume Result Units MDL MCL Flag Barium, Total 16:13 16:12 3.9 5612 <0.89 Hg/m3 0.89 500 Beryllium, Total 16:13 16:12 3.9 5612 <0.036 Hg/m3 0.036 1 Cadmium, Total 16:13 16:12 3.9 5612 <0.036 Hg/m3 0.036 2.5 Chromium, Total 16:13 16:12 3.9 5612 <0.089 Hg/m3 0.089 500 Copper, Total 16:13 16:12 3.9 5612 <0.18 Hg/m3 0.18 500 Lead, Total 16:13 16:12 3.9 5612 <0.089 Hg/m3 0.089 30 Manganese, Total 16:13 16:12 3.9 5612 <0.13 Hg/m3 0.13 1000 Nickel, Total 16:13 16:12 3.9 5612 <0.18 Hg/m3 0.18 500 Zinc, Total 16:13 16:12 3.9 5612 <0.18 Hg/m3 0.18 2500

MDL = Minimum Detection Limit MCL = Maximum Contaminant Level > MCL = Exceeds Maximum Contaminant Level Samples analyzed by EMSL Analytical, Inc.; NY ELAP ID# 10872 and 11506 Page 2 of 3

CITY_DEP_WORBY_CANNATA_SUBP_000056752

NYC-WTC_000231962