Invoice for asbestos sample analysis, 44 Wall Street

NYC 9/11 Public Portal Document

Hillmann Environmental Group, LLC

3.2 Outside & Supply Measurements

Investigation Date: September 15, 2001

TEMP CO2 CO VOCs TIME RH (PPm) , m m

12:06 71° J 38% 535 2 LOD

Investigation Date: September 21, 2001

TEMP. . ,. `~ '~CO2 CO YOCs TIME (°F), (ppm) :; (ppm); ~.(ppm)

12:20 73° 42% 521 LOD LOD

Investigation Date: October 4, 2001

TEMP. CO2 CO VOCs TIME (°k) : (ppm) (ppm) (ppm)

14:55 68° 39% 532 LOD LOD

3.3 Airborne Asbestos Fiber Sample Results

Asbestos by Date Location TEM Sampled (struct/cc)

Recommended Li nit 0.01 Mezzanine, Back Area 9/21 0.003 Mezzanine, Adjacent to Elevator 9/21 <0.002 Penthouse Level, Large Meeting Room 9/21 <0.002 Penthouse Level, Adjacent to Entrance 9/21 <0.002 Elevator Lobby 9/21 <0.002 Lobby, Adjacent to Entrance 9/21 <0.002 A Level/ Adjacent to D Stairwell 9/21 <0.002 6`h Floor, West Main Area 9/21 <0.002 9`h Floor, Middle of Main Area 9/21 <0.002 22"' Floor, West Area 9/21 <0.002 Stairwell A, by 16th Floor 9/21 <0.002 18`h Floor, East 9/21 <0.002 Penthouse, Adjacent to Fireplace 10/4 0.002

Cushman & Wakefield!44 Wall Street, New York, NY/Project Number N3-7476 Page 6

NYC-WTC 000094938