HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document .- Was. ns- •i u M&Eton norm M System Identmcatiow Page 1 of 1 Location: 7"(Rt N 2B$ ..- ;3 e o A t 8A ivy E7 Area Served: • A,ssociazexi mechanical room: clean Y N chyy Y N stored chemical chemica1s/refu Y N System Components [NOTE: If component not present (NP), not found surface Component (Ni } or inaccessible {f} please ' Dust/ WTC a not present indicate in last column] Debris Dust Present? a not found Exhaust air outlet: Present? Location: a inaccessible Accessible for inspection? Y (N _teaplairt): — louvers, grates and/or screens — outside air duct — outside air damper(&) Exhaust fan unit: — blower assembly roil. blower wheel, housing, air vanes, in-line noise — blower housing acoustical lining sttenuator& — vibration collars ?~ Exhaust air distribution: ,1 P — Exhaust air ducts Esc. total in ft .j o 0 No. locations inspected 1 Specify type (circle): s 1, .5 ) e m y I — Accessible ine fire dampers Est tom No. locations inspected — Accessible taming vanes NP Est. tom qt____ No. locations is~pected —Exhaust air grilles Est total illy N~ Other (specify): No. loca ons inspected O J

Other Inforatatioa;

General impression (Indicate recommendations for cleaning based on funding of WTC dust): wi-G JL/47LD fl uST WAS of n "ED t u 'T 4 "N AMD !7 S P(~ AND f 5 +115SoC.tFt7FD )t cT5.

C L.EA~ l iJ Ct tg Q0 FOR w-r -TEL TE'D T usT. C.1,.£A*1 T4iE E7c 4 us1 ITS Cot-WC J -$ 7S ITS Assoee' T' Oo75.

~Y: NP a= not present; NF - not found; I - inaccessible; U a unknown

NYC-WTC 000135429