Environmental investigation report cover, 75 Park Place, Mar 2002

NYC 9/11 Public Portal Document

Friday, March 01, 2002 10:34 AM EHI, Inc. 973-729-5649 p.08

Bovis Lend Lease, Inc.

Environmental Hazard Investigation 75 Park Place ` x= - February 22, 2002 -Floors 6, 7, 8, & 9 EHI Project #: 0224-0572A

Area/Sample 01 02 03 04 05 06 07 08 1,2,3,4,7,8-C 16-Dibenzo-p- <0.40 <0.12 <0.12 <0.12 • <0.14 <0.15 <0.14 <0.060 dioxin

1,2,3,6,7,8-C16-Dibenzo-p- <0.36 <0.10 <0.11 <0.10 <0.13 <0.13 <0.12 <0.054 dioxin

1,2,3,7,8,9-C 16-Dibenzo-p- <0.30 <0.11 <0.11 <0.11 <0.13 <0.14 <0.13 <0.057 dioxin

1,2,3,4,6,7,8-C17- <0.26 <0.093 <0.094 <0.070 <0.12 <0.11 <0.10 <0.049 Dibenzofiran 1,2,3,4,7,8,9-C17- <0.31 <0.11 <0.11 <0.093 <0.14 <0.13 <0.12 <0.058 Dibenzofuran 1,2,3,4,6,7,8-C17-Dibenzo-p- <0.42 <0.15 <0.15 <0.11 <0.19 <0.18 <0.17 <0.077 dioxin

1,2,3,4,6,7,8,9-C18- <0.31 <0.14 <0.14 <0.11 <0.18 <0.17 <0.16 <0.078 Dibenzofuran 1,2,3,4,6,7,8,9-C18-Dibenzo- <0.35 <0.16 <0.16 <0.12 <0.21 <0.19 <0.22 0.33 p-dioxin

4.0 Discussion

The levels of metals' found in each of the areas samples were generally low to moderate.

These concentrations are not considered hazardous as there is insufficient mass to allow for

significant exposure. There are no standards for acceptable levels of metals in settled dusts in

office environments. However the amount of materials identified are small and if they were

completely suspended in the office atmosphere the resulting concentrations would not exceed the

OSHA Permissible Exposure Limits.

The levels of dioxin and dioxin like compounds in the areas sampled were generally non

detected. Two detectable concentrations are considered low and would be incapable of

generating airborne concentrations in excess of the U.S. EPA screening Ievel.

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