NYC-WTC_000232240

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 4/7/2005 New York, NY 10006 Date Analyzed 4/7/2005 Collected By K. DaRocha Job Location 130 Liberty Street Collected 4/6/2005 Rotometer Standard

Lab ID 010501218-0005 Matrix Air Field ID M-040605-437 Location Washington Street/Cedar Street

Parameter Start End Flow Volume Result Units MDL MCL Flag Barium, Total 16:15 16:15 4 5760 <0.868 Hg/m3 0.8680 500 Beryllium, Total 16:15 16:15 4 5760 <0.035 Hg/m3 0.035 1 Cadmium, Total 16:15 16:15 4 5760 <0.035 Hg/m3 0.035 2.5 Chromium, Total 16:15 16:15 4 5760 <0.087 Hg/m3 0.087 500 Copper, Total 16:15 16:15 4 5760 <0.174 Hg/m3 0.174 500 Lead, Total 16:15 16:15 4 5760 <0.087 Hg/m3 0.087 30 Manganese, Total 16:15 16:15 4 5760 <0.130 |jg/m3 0.13 1000 Nickel, Total 16:15 16:15 4 5760 <0.174 Hg/m3 0.174 500 Zinc, Total 16:15 16:15 4 5760 0.198 Hg/m3 0.174 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 3 of 3

C ITY_D E P_WO RB Y_C AN N ATA_SU B P_000114335

NYC-WTC_000232242