69 MURRAY STREET Block: 132 Lot: 3 BIN: 1001420

NYC 9/11 Public Portal Document

2127554848 MJCROECOLDGIES 07? PO4 NO) 15 '01 12:57

• "Treat all interior siufaCesof the unit and the an intake area using a low toxicity biostat to prevent or retard fungal and bacterial regrowth, w Upgrade the filters to the high efficiency type (60% @ 3 micron ASHRAE) and properly fit.

+ hiaddition, the following non-standard work should be performed:

ibompat nstall screws to secure main access panel of blower wheel/evaporator coil ment• Install secure removable cover to filter compartment. 'The short run retn#n duct mmning from the north wan of the I ith floor to the air handler should be HEPA vacuumed, wiped and/or encapsulated. The unlined galvanized air supply ducts throughout the premises contain high bevels of loose particulate matter. When the air handler work recommended Ibove is performd, the duct cleaning project should be thoroughly evaluated and a detailed proposal submitted. • I We Ate highly qualified and experienced mechanical hygiene contractors and have for4ned Imadreds of similar jobs. We would be pleased to provide references. If y would like us to perform, the work recommended above, we estimate that this W twat r ankl require 3 man day's ® $600/man day plus materials (approximately $200) will

i C

1eaSecdll if you would like to discuss or if we can be of further service.

Sbthern tdu al hygileniat and Manager cc: xrry DiGriovanni

Enclbsar±e

t ,

mcroeeOIogle ict:

141 east-61st meet, 2ndfloor ♦ new York, ny 10021 + tel: (212) 755-3265 ♦ fan: (212) 755-4848 lcbgS `• welrsite; wwa.miaoecologies.com ♦ e-mall: miacecologkSCfiaol.00m rlsl BysienisrB and Environmental Investigators • HVAC HYgiene ♦ Certified Hazard Abatement

NYC-WTC 000097847