Fax cover sheet regarding DEP asbestos matter, Nov 2002

NYC 9/11 Public Portal Document NOV.13.2002 4:24PM ROSS & HARDIES N0.979 P.13

. re

Fulidh ag Facade

Clean-up

Work shall be performed by a NYSDOL licensed asbestos contractor with NY'CDBP and NYSDOL asbestos certified workers. The contractor performing the cleaning should be experienced in cleaning building facades. The clean up area shall be specified (''specified area") by X)EP,7be area below the facade cleaning shall be covered with a layer of polyethylene sheeting.,Al1 debris must be collected for disposal as ACM directly upon removal from dw surface. (i.e.,All waste must be double bagged in ACM waste labeled bags.) Rimming water or water runoffon the building facade is not permitted. Building occupants shall be notified prior to the cleaning. Access to the succt below the facade facade

cleaning shall be restricted and marked with caution tape. Cleaning shall not be performed during wind speeds &eatesr than 20 mph. All HVAC systems and air conditioners be tt led off''. All windows shall be closed during the shall

r

cleaning of the building. Some air conditioners 'windows may require sealing with duct tape to and

prevent water penetration.

.pzzaULri2 Iñ'on tlexoof All rleaa up activities on the roof must be completed prior to rigging equipmenttom the roof, All horizontal surfaces,and windows on the: facade be cleaned oflarge bull;,material by wetting all

shall

and hand brushing or scraping with non naelal is brushes or nonnmetallic scrapers, by wet wiping bustle

and/ or by BEPA vuuuming from top.to .bottom.:.Cn1y water shall be used for wet wiping and low. pressure washing. Detergents, solvents, additives,'atad nay other chemical cleaning mats are prohibited. The removed material shall be imrtiediateiy placed into`'comtaaness (e.g. bags).' Windows shall be wet wiped Free running water shall not be evident.during this procedure. Power for HE?A vacuums shall be supplied through fault interrupters. ground

After completion ofdebris removal, the specified area

shall be carefftlly washed.'A low pressure washing technique, moving from to bottom,shall be• to p

employed to minimize water bounce-back. Facades shall be washed with a low-pressure wash not to e3ceeed 250 psi. At the eompletion of work, a visual

inspection :ofthe abated surfaces and sidewalk shall be performed to verify

the absence

of

S debris. visible

Air

monitoring

shall

be

performed

by as

third independenn NYSDOL

licensed

party

air

ne fi monitoring

with

certified

workers.

In

;to order

minimize

to disruption

the

public and to.

building

th occupants,

rescomn it e is

e

nded this

work

be

performed

during otT-borers. .

Page S

0$/03/02

NYC-WTC 000115612