NYC 9/11 Public Portal Document
p-ersonalair monitoring shall be performed by the Monitdringfontractor in accordance with
USDOL OSHA requirements. The person who conducts satHpling shall possess a valid NYS DOL
certificate. Personal air monitoring will be perforoaed on a tnininittmtofone worker per shift per
apartment during tor the first 4-6 weeks ofcleaning operations. This maybe extended based on
an determination made by EPA, DEP and OS HA. Thereafter perstrnakiir monitoring samples will
be taken at one sample per quadrant per-day. All samples shall be collected and analyzed in
aceordance with NIOSH Method 7400 for PCM and 7402 for TL M. .Analysis of these samples
shall be the responsibility ofthe Monitoring Contractor. Results ofai liall be available within
24 hours of collection. 'The results ofthis sampling shall be sent immediaiely to EPA, DEP, OSHA
anffthe-iemployef. The employer will make these results avuhv : ■ a- -.ho.. o.rloyees or their
designatedrepresentatives for their review in aceordance with 29 CFR1910.1001 and 29 CFR
1926.58.
Deliverables
The Project Monitor shall review all deliverables prior to submission to bPA. The review shall
assurettet each deliverable is Wcurate and complete, technicalh- sound, and free of clerical errors.
The Project Monitor shall submit upon request a (idd package consisting of field sheets, field notes
(copy). and chain-of-citsUxly forms (copy) shall be del ivered to the I P/\ via email, or an alternative
format agreed upon. The font raclor must sign and date all field sheets, field logbooksatidchain-
of-custody forms. This data shall be provided daily upon request at the activity completion.
15. Air Sampling without cleaning
a,, Based on consuitaiion with resident or owner, aggressive or modified aggressive air
sampling will be conducted. Residents shall not be present in their apartment during
aggressive air sampling activities.
i. Before beginning aggressiw air sampling, forced air equipment (such as a 1
horsepower electric leaf blower) shall be used to direct exhaust air against walls,
ceilings, floors and other surfaces. When directing'the exhaust, caution-shall be
taken to minimize disturbance and potential damage to frirnishings and personal
belongings.
ii, for modi tied aggressive air sampling forced air equipment shall not be employed.
iii. All other procedures are identical for aggressive^tmd modified aggressive air
sampling. • •
b. One 2()-inch tan shall be installed per 10,000 cubic feet of room space and ritofo low
speed. The firn shdl operate wntiiiuouslythrougho'ut sampling-aad shall not be turned off
until sampling is coiHpleted. • ,
c. For stoiio apartments 3 samples shall be eollectM. For lfoedin<Hn-apartm.ents and. above
5 samples shall be collected. Sampling equipment shall be placed in living areas and away
from obstructions. The sampling cassette must be placed on a tripod and not taped to
existing surfaces.
NYC-WTC_000162452
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