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← Document results/DEP Box 03/2002 E-Mail Sent M. Gilsenan
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2002 E-Mail Sent M. Gilsenan

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000139482–000139499
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NYC 9/11 Public Portal Document

analysis for mercury). All wipe samples will be collected in accordance with procedures specified in HUD Appendix 13.1.

b. The contractor shall document all the necessary information regarding sampling activities, fill out all field logs, data sheets, and chain-of-custody forms. The contractor shall use F2L for all sample and chain-of-custody documentation. Samples must be labeled and accompanied with completed chain of custody'/forms before shipping to the designated laboratory. The label must mcludie the EPA Project Tracking Number. Samples will be packed, sealed and haM Bred for analysis to EMSL laboratories at; 307 W. 38* St., New York, New Yor ^390-0051. Metals samples will be analyzed using EPA Meth(^pW-846 6Qfp samplesj|i!l be analyzed using EPA Method SW-846^pl A. *■

deliverables

The Project Monitor shall review all deliverables prior to st mission to EPA. The review shall assure that each deliverable is accurate and com^bte, tel lically sound, and free of clerical errors.

The Project Monitor shall complete cbdtn of । !■ 'WB*' ^•ecor^Ke number ofwipe samples. record EPA Project Tracking Num^W, laboratory i and sample IDs in an agreed upon electronic format or website approveg^ EP. IMS ^4 hours of activity. II 7. Post Clean-up Air Samplinj l^odedures a. Sampling shall not jgm until a visual insp^tion confirms the absence of visible dust j^nd debris. Post waning air sampling shall be performed upon successful visual inspection .eted within 24 hours. A successful visual inspection shall be an

b. i inspection that veri b:theabsehceofdust and debris. AH surfaces must! ;xpletely dry prior to the start of sampling. c. Window air cona ling units where applicable shall be run/operated at least 15 minutes prior to thi^^p of sampling. The air conditioning units shall operate continuously throughoutthe sampling. F Based on consultation with resident, aggressive or modified aggressive air sampling will be conducted upon completion of cleaning. In aggressive air monitoring sampling -isW situations, .^fbre the start of sampling, a 1 horsepower electric leafblower will be used to direct Jphaust air against walls, ceilings, floors and other surfaces. When directing the exhaust, caution shall be taken to minimize disturbance and potential damage to furnishings and personal belongings. The procedure described below for modified aggressive sampling techniques will also be employed e In modified aggressive sampling, one 20-inch fan shall be installed per 10,000 cubic feet of room space and run at low speed. The fan shall operate continuously throughout sampling and shall not be turned off until sampling is completed. f. For studio apartments 3 samples shall be collected. For 1-bedroom apartments 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

NYC-WTC_000139497

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NYC-WTC_000139497Source: NYC Law Department, mirrored locally

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