Ventilation System Evaluation Form, Nov 2003

NYC 9/11 Public Portal Document

2.2 Mechanical Exhaust System Visual Inspection Form Page 1 of 1 Mechanical Exhaust System Identification: EM-r-'. " ;, ,4-,a taf Location:: n Area Served: - Z.7~ ~ 1~Fir-!i . Q F~"5~rtt~ +i+lj....A•'S ~K. it~4uS i Associated mechanical room: clean Y N dry stored chemicals/refuse Y N Y N • Surface Component System Components Dust! WTC l; not [NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust present' - indicate in last column] Present? Present? not found

Inaccessible Exhaust air outlet: Location:

Accessible for inspection? Y IN (explain):

louvers, grates and/or screens outside air duct outside air damper(s) ~P Exhaust fan unit: blower assembly Incl. blower wheel, housing, air vanes, in-line noise attenuators • blower housing acoustical lining t vibration collars Exhaust air distribution: _ Exhaust air ducts Est. total In ft No. locations • inspected 3 - Specify type (circle): meal fibrous glass lined metal masonry fibrous glass board J flex-duct wood

Accessible i^-line fire d —r - rs Est. tr*zl at'; No locations inspected 1J Accessible turning vane . . total No. locations inspected P Exhaust air grilles Est. total gty Lf No. locations inspected Z Other (specify):

Other Information:

General Impression (indicate recommendations for cleaning-based on finding of WTC dust):

(N`Tti t3A T P(2FSSNi F2oA'1 Bt,t : s,i LvUV~12 To 7 FE&i (A~i

OCQ C l R,( f 11 S 1V` y - ci- 4 A4+! S { {

I KEY: NP = not present: NF = not found: I = Inaccessible: U = unknown I

NYC-WTC 000132804