Asbestos removal variance correspondence, 130 Cedar Street, Jan 2005

NYC 9/11 Public Portal Document 01/1//200b 01:42 17325653654 NOVA DEVELOPMENT GRP PAGE 11

NYC DEP Asbestos Control Program VAR # 0. LRLANCES FROM TITLE-15, CHAP' *'1,RULES OF TEE'G1TY YORK, SECTIONS 1-81(m)AND 1-91® (15 RCNY § 141(mm)AND § 1-91(c))

1. All tent enclosuresand contiguous spaces within a radius of 10 feet shall be roped off and regulated to allow only workers and• authorized visitors to enter.

2. 15 RCNY § 1-106 shall be complied with L•that I: all tents shall be lined with 21,i11a ofplastie abeeting (6-mil tbickness'at a minitsnum); ii. the amounts of ACM that maybe abated each modified. tent shall NOT EXCEED in

(a) 160 square feet, or (b) 260 linear feet, or*160 combIned feet (square linear). puts

iii. the toialamount of ACM that maybe abated at.any one time in several medif ed tcnf& shall NOT EXCEED 1,000 opbined square feet plus linear feet. 3. All modified tents shall be fully framed (including horizontally across the top, if applicable) with 2x3 (minimum) wood or metal studs spaced not more than 36 inch center-to-center vcrt1 11y around gU sides (except atthe entry/exit which shall not exceed ' 36 inch width); and

4. A minimum of one alr-voltm a change per 15 minutes through each modif od tent shall be maintained.

S. An airlmk. having at least 3 feet length between the two curtained doorways shall be constructed at the entrance to each and every. lent Ifthe decontamination unit is nq1 attached to the tents, and

6. If decontamination a

Is t attached each l fed within sirhx k there shall be unit

n to tent, sae

extra

clean and

uncontaminated disposable protective suits (e,g.Tyveks), and one such clean suit shell be worn by each worker In the

outer airlock, after

of immediately removal the

15

I RCNY suit

per as

-106(k), before each exits any

worker

§

airlock.

7. Any decontamination unit that is ui at ached to a tent (i.e. that is 11; from a tent) shall be constructed in the

requirements with compliance

of Attachment

D.

8. Decontamination .units that gig attached to tents shall comprise at least a shower'oom and a glean room, with. one curtained doorway separatg thew, end with•a second curtained doorway separating the tent from the shower room.

the removal After

and 9.

ACM l

Refer 15' :RCNY § bagging

b.106(f) (g)],.die

waste said

bagged be

shall BEPA4acuamed

wet

and

cleaned

then into

transferred the•airlock or shower

Into ;the room.

Items

(as per

S

and S

above

respectively)

thereafter,

for and double

shall baggee¢ double bagging,

the

waste

be transfhrred

the

outside

airlock outside

or

for its

the clean fi storage

room nal in a

transfer to area.

and/or means

to of holding

legal disposal.

the integrity the

of compcoinised 10.

tent Is and/or are

If visibleemissione detected

outside the

tent

and/or levels

exceed

0.01 DYcc work shell stop and 15 RCNY § 1-45(a) shall be complied with immediately.

Applications

As NOTE Variance

specifying these

"Requirements for

as Modified Tent Procedures"

Lhe

abatement

methods

shell.not.heapproved

for inns full

any work

place for cent

which

is

be

Department

to feasible.

TRUISM

NYC-WTC 000125728