License Agreement, 94 Fulton Street, Oct 2002

NYC 9/11 Public Portal Document

ocT-02-2002 144. NYCDEP BANhrl RSB'LERD TRU ?1.8 595 3648 P.09

RoofClen4Jn cleaning roofs contaminated Application: TMs procedure utilizes wet methods and careful hygiene protocol for with asbestos containing material (ACM). determinations. All abatement will be 1. The entire roof shall be considered the work area for entry/access performed by NYSDOL licensed contractors with NYC DEP certified workers. areas shall be For or stone covered roofs with localized accumulations of visible debris, the cleanup uoa-gravel

specified ("specified area") by DEP. for clean-up. For gravellstone covered roof surfaces, the entire roof shall be included in the specified roofas washed. Water shall be collected, The gaveJstone shall be taken to a cleanup staging area on the roof and filtered, and discharged into the chain/sewer as applicable. immediately adjoining the roof 2. A changing, area consisting of two adjacent step-off pads located on the roof adjacent to the entrance/exit. This area shall consist of a clean pad and a change gad. The clean pad shall be pad shall be roof for exterior access). The change building interior access way (or at the point of envy to the of two layers of 10- adjacent to the contaminated roof areas. Each pad (change pad and clean pad) shall moist changing and shall be large enough to facilitate mil reinforced plastic on the rooflsocess way surface and coniguratbon will dccQntination as described herein. A minimum of 4' x 4' is recommend, though the exact bespeeictOtherOOf.

3. Workers shall step Som the building interior (or exterior at the point of entry to the roof) directly onto the plastic booties, clean pad. On the clean pad, each worker shall be double suited with disposable coveralls, first

the plastic booties. The boots shall be wet gloves, and head coverings. Rubber boots maybe used instead of -face air- and HEPA vacuum prior to leaving the roof. Each worker wiped shall wear a minimum of a half purifying respirator equipped with HEPA cartridges.

4. All at the roof within 10 feet of the specified roof included penetrations area in the clean-up shall be cleaned by wet methods/HEPA vacuum and sealed with 6-roil polyethylene sheeting.

5. Roof cleanup sbaU begin at the en rant e/exit and proceed in a path working away from the entrance/exit. release. ber

for fi potential

the

minimize

to

control

en

the pntnay gineering be

Water shall

rags,

mops.

water, with

techniques

wiping

wet

using cleaned

wet

then

and

wetted

be shall

surfaces

Roof 6.

cleaning.

wet with

combination

in

or to hive

alt

used as be

also

may

vacuuming

etc. HEPA

brushes,

T. Throughout the procedure, all personnel entering or existing the roof shall observe the personal of

disturbance

or

on walking

wutecessary

limiting

to paid

be

Attention shall

practices.

decontamination

order to

in

to, adhered

strictly

be

shall procedures

decontamination

personal

ese Th

roof. the on

material

minimize the potential for spreading contamination to the interior of the buildings. shall be wet

cushions,

plastic furniture

and

potters,

plant

furniture,

patio metal as

such

objects,

nonporous

Solid

8.

lightly

and

wet wiped,

vacuumed,

HEPA

be

shall

decking

objects such as

Wooden

Ta gs. damp

wiped with

shall

materials

Woven

exhaust.

HEPA

and lam

misting

simultaneous

utilizing

bristle brush

with a

brushed

CFR

with 29

accordance

laundering in

proper

-site for

removed off

and

bagged

or

disposed as ACM

be either

the owner

unless

waste ACM as

disposed

be

should contamination

visual

with plants

Potted

1.001.

1901.

catch the

to

shall made be

provisions

rinsed, and

repeatedly

be

will plants

Potted

decontamination.

requests

-vacuums).

wet

HEPA

rags and

using or

by bags

disposal

water (i.e. into ACM

runoff

washed.

carefirlly

shall be

roof

specified area

the

above,

of the completion

9. After

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05/03/02

000127635 NYC-WTC