13 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 18 pages
Revised scopes of work for WTC indoor cleaning and monitoring,
Machine-extracted title · confidence 95%EPA transmits revised scopes of work for WTC indoor cleaning and monitoring contracts to DEP.
NYC-WTC_000138725–000138742Folder label: “E-Mails Hotline M. Gilsenan”
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NYC 9/11 Public Portal Document
Personal air monitoring shall be performed by the Monitoring Contractor in accordance with USDOL OSHA requirements. The person who conducts sampling shall possess a valid NYS DOL certificate. Personal air monitoring will be performed on a minimum ofone worker per shift per apartment during for the first 4-6 weeks ofcleaning operations. This maybe extended based on an determination made by EPA, DEP and OSHA. Thereafterpersonal air monitoring samples will be taken at one sample per quadrant per day. All samples shall be collected and analyzed in accordance withNIOSH Method 7400 for PCM and 7402 for TEM. Analysis ofthese samples shall be the responsibility ofthe Monitoring Contractor. Results ofanalysis shall be available within 24 hours ofcollection. The results ofthis sampling shall be sent immediately to EPA, DEP, OSHA and the employer. The employer will make these results available to the employees or their designated representatives for their review in accordance with 29 GFR1910.;l^l and 1926.58.
Deliverables
The Project Monitor shall review all deliverables prior to submission to EPA. The review shall assure that each deliverable is accurate and complete, technically sound, and free ofclerical errors.
The Project Monitor shall submit upon request a fieldpackage consisting offield sheets, field notes (copy), and chain-of-custody forms (copy) shall be delivered to the EPA via email, or an alternative format agreed upon. The Contractor must sign and date all field sheets, field logbooks and chain- of-custody forms. This data shall be provided daily upon request at the activity completion.
15. Air Sampling without cleaning
a. Based on consultation 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 aggressive air sampling, forced air equipment (such as a 1 horsepower electric leafblower) 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 furnishings and personal belongings. ii. For modified aggressive air sampling forced air equipment shall not be employed. iii. All other procedures are identical for aggressive and modified aggressive air sampling. b. 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. c. 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 taped to existing surfaces.
NYC-WTC_000138738
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NYC-WTC_000138738Source: NYC Law Department, mirrored locally
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