NYC-WTC_000232522

NYC 9/11 Public Portal Document

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

REPORT DATE: 07-17-02

CLIENT; Taylor Environmental Group, Inc.

PROJECT NAME: SC.A/Stuyvesant HS 345 Chambers St., 9th Floor SAMPLED BY: Client

SAMPLE DATE 07-16-02 DATE RECEIVED; 07-16-02 DATE ANALYZED: 07-16-02

SAMPLE MEDIA; Air Samples

I AN’ALYSIS REQUIRED: Method NIOSH 7082

I ANALYSIS RESCn.TS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT I 01 20398 Rm 901 Inside Classroom Near Entrance to Corridor (H&'m*)

<3.1 3.1 02 20398 Rm 903 Inside Classroom Near Entrance to Corridor <3,1 3.1 03 20398 Rm 907 Inside Classroom Near Entrance to Corridor <3.1 3.1

I 04

05 20398

20398 Rm 911 Inside Classroom Near Entrance to Corridor

Rm 913 Inside Classroom Near Entrajice to Corridor <3.1

<3.1 3.1

3.1 06 20398 Rm 925 Inside Classroom Near Entrance to Corridor <2.5 2.5 07 20398 Rm 901 Inside Classroom Near Entrance to Corridor 3.3

I OS

09 20398

20398 Rm 903 Inside Classroom Near Entrance to Corridor

Rm 907 Inside Classroom Near Entrance to Corridor <3.3

<3.3 3.3

3.3

I 10 20398 Rm 911 Inside Classroom Near Entrance to Corridor

Rm 913 Inside Classroom Near Entrance to Corridor <3.4

<3.4 3.4

3.4 11 20398

I 12 20398 Field Blank <L5 Mg

<1.5 Mg 1.5 Mg

1.5 MS 13 20398 Field Blank

I NOTE 1: THE REPORTING LINDT (RL) IS 3.0 pg

At the present lime tlicre are no regularoiy levels or requirements for indoor auborre lead in ai'ca samples. However, OSHA bas established an action level of 30 and a pennissible exposure level (?£L) of 50 pj/m’ for personal samples.

I NOTE 3: Blank units are in Mg

I CONFIDENTIAL, CITY_21MC100_010733862

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232522