NYC-WTC_000200153

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

REPORT DATE; 08-26-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 4th Floor

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE 08-24-02 DATE RECEIVED: 08-24-02 DATE ANALYZED: 08-24-02

SAMPLE MEDIA; Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

= ANALYSIS RESULTS

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

4-Ll 21461 Corridor North West Side by Rm 448 <1.5 1.5

4-L2 21461 Corridor by Rm C421 <1.5 1.5

4-L3 21461 Corridor East Side by Stairway E 1.5

FBI 21461 Field Blank <1-5 pg 1-5 pg

FB2 21461 Field Blank <1-5 pg 1-5 pg

c NOTE 1; CD E THE REPORTING LIMIT (RL) IS 3.0 pg 3 o NOTE 2: o At the present time there are no regulatory levels or requirements for indoor airborne lead in area samples. However, OSHA has Q established an action level of 30 pg/m’ and a permissible exposure level (PEL) of 50 pg/m’ for personal samples. TO NOTE 3: ■c in o Blank units are in pg T— Q_ o o o CM Z O 3 O 0. o' O) O § d Z CITY_21MC100_011274062 z