Document fragment from DEP Box 53 regarding West Street

NYC 9/11 Public Portal Document

Date of Sampling: September 27, 2001 0 HILLMANN ENVIRONMENTAL GROUP, L.L.C. ENVIRONMENTAL CONSULTING & LAB SERVICES ■ Date of Sample Receipt: September 28, 2001 1600 ROUTE 22 EAST P.O. BOX 1597 ■ To: CLARIS SERVICES GROUP UNION, NEW JERSEY 07083-1597 6903 ROCKLEDGE DRIVE (908)688-7800 ■ SUITE 920 FAX (908) 688-7800 BETHSEDA, MD 20817 www.hilimanngroup.com ■ Attn: MS. JUDY GILBERT

Location: Marriott World Financial Center 85 West Street/New York/NY HECO# Y1-3508

Procedure: Air Quality

Field Technician: CUASCUT, DETRICK F Date of Analysis: September 28, 2001 Date of Issue: October 18, 2001

AIR SAMPLE CERTIFICATE OF ANALYSIS

■ Method: Phase Contrast Microscopy: NIOSH 7400; Issue #2. 1994/ELAP ID 10926

■ LAB ID# LOCATION/SAMPLE ID

■ K43816 Main Lobby/With in 10' of 1200 0.004 ■ Security Desk

■ K43817 1st Fl/With in 10' of Elevator 1200 0.013 Bathrooms

K43818 Corridor/Between Restaurant & 1200 0.027 ■ Store

■ K43819 With in 10' of Main Entry to 1200 0.010 Restaurant Airlock

K43820 Main Lobby/With in 10' of 1200 0.003 ■ Security Desk

K43821 1st Fl/With in 10' of Elevator 1200 0.004 & Bathrooms

• Analyst Signature: ELLIS, BENJAMIN, 1. , ASSISTANT MANAGER

on 5.5 fibers/100 fields. ■ (<) Indicates results are below the limit of detection (LOD). LOD is based

■ Page 1 of 3 ~, . $ dti.t1sI des ACCREDITED LABORATORY

■ NYC-WTC 000131186