345 CHAMBERS STREET; Block: 16; Stuyvesant HS

NYC 9/11 Public Portal Document

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

16 20700 Field Blank <1.5 µs 1.5 µg I 17 20700 Inside Rm 802 at Entrance to Corridor <3.1 3.1 18 20700 Inside Rm 807 at Entrance to Corridor <3.1 3.1 I 19 20700 Inside Rm 817 at Entrance to Corridor <3.1 3.1

20 20700 Inside Rm 329 at Entrance to Corridor <3.1 3.1 I 21 20700 Inside Rm 333 at Entrance to Corridor <3.1 3.1

22 20700 Inside Rm 335 at Entrance to Corridor <3.1 3.1 I 23 20700 Inside Rm 327 at Entrance to Corridor <3.l 3.1

20700 Inside Rm 337 at Entrance to Corridor <3.1 3.1 LI 24

25 20700 Inside Rm 339 at Entrance to Corridor <3.1 3.1

Inside Rm 911 at Entrance to Corridor <3.1 3.1 I 26 27 20700 20700 Inside Rm 925 at Entrance to Corridor <3.1 3.1

Inside Rm 802 at Entrance to Corridor <3.6 3.6 I 28

29 20700

20700 Inside Bin 807 at Entrance to Corridor <3.6 3.6

Inside Rm 817 at Entrance to Corridor <3.6 3.6 I 30

31 20700

20700 Inside Rm 329 at Entrance to Corridor <3.6 3.6

20700 Inside Rm 333 at Entrance to Corridor <3.6 3.6 32 I 33 20700 Inside Rm 335 at Entrance to Corridor <3.6 3.6

Inside Rm 327 at Entrance to Corridor <3.6 3.6 I 34

35 20700

20700 Inside Rm 337 at Entrance to Corridor <3.6 3.6

<3.6 3.6 Inside Rm 339 at Entrance to Corridor I 36 37 20700 20700 Inside Rm 911 at Entrance to Corridor <3.6 3.6

<1.5 pE 1.5 Kg 38 20700 Field Blank <1.5 µg 1.5 gg 39 20700 Field Blank

NOTE 1: THE REPORTING LIMIT (RL) IS 3.0 µg NOTE 2: At the present time there arc no regulatory levels or requirements for indoor airborne lead in area samples. However, OSHA has established an action level of 30 µg'm3 and a permissible exposure level (PEL) of So µg/m3 for personal samples. NOTE 3: Blank units are inµg I NYC-WTC 000107127