NYC-WTC_000188070

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC - 104 E 25th Street, 10th Floor New York, NY 10010 Tel. 212-353-8280 Fax 212-353-8306

REPORT DATE: 10-11-01

CLIENT: Bechtel

PROJECT NAME: WTC EMC PROJECT NO: 15-75220-01

SAMPLED BY: K. Fitzpatrick

SAMPLE DATE: 10-09-01 DATE RECEIVED: 10-10-01 DATE ANALYZED: 10-10-01

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (Pg/m")

01 9495 Field Blank <1.5 1.5

02 9495 Field Blank <1.5 1.5

03 9495 Kendel Hanis Bovis-Cutter Pile <1.6 1.6

NOTE 1: THE REPORTING LIMIT (RL) IS 3.0 pg NOTE 2; At the present time there are no regulatory levels or requirements for indoor airborne lead in area samples. However, OSHA has established an action level of 30 pg/m’ and a permissible exposure level (PEL) of 50 pg/m' for personal samples.

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY:

REPORT PREPARED BY:

ATC certifies that this report is an accurate and authentic report of results obtained from the laboratory analysis.

QUALITY ASSURANCE COORDINATOR:

- LABORATORY DIRECTOR:

ATC Environmental Inc. (ATC) is accredited by the New York State Department of Health Environmental Laboratory Approval Program (NYS DOH ELAP) to perform analysis of lead in paint and dust wipes (ELAP #10879).

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NYC-WTC_000188070