Specific instructions for collecting bulk dust samples, labeling containers, and repairing insulation disturbed during sampling activities.
NYC-WTC_000140385–000140398Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
successful visual inspection shall be an inspection that verifies the absence of dust and debris. b. All surfaces must be completely dry prior to the start of sampling. c. Upon completion of the cleaning, air sampling will be conducted to verify attainment of the clean-up criteria. Based on consultation with the resident or owner, aggressive or modified aggressive air sampling will be conducted. Residents shall not be present during aggressive air sampling. 1. Before beginning aggressive air sampling, a 1 horsepower electric leaf blower shall be used to direct exhaust air against walls, ceilings, floors and other surfaces. This shall continue for at least five minutes per 1,000 square feet of floor area. When directing the exhaust, caution shall be taken to minimize disturbance and potential damage to furnishings and personal belongings ii. Residents shall not be present in their residence during aggressive air sampling activities. Hi. Personal protective equipment including disposable clothing, gloves, and respirators shall be worn during aggressive air sampling activities. iv. HVAC systems shall be shut down or isolated locally during aggressive air sampling. V. Room and window air conditioners shall not be operated during aggressive air sampling. vi. Leaf blowers shall not be employed for modified aggressive air sampling. vii. All other procedures are identical for aggressive and modified aggressive air sampling, unless otherwise noted. d. At least one 20-inch fan shall be placed in the center of each room sampled. One fan per 10,000 cubic feet of room space shall be used. The fans shall be operated on slow speed and pointed toward the ceiling. The fans shall run for at least 15 minutes prior to the start of sampling. The fans Shall operate continuously throughout sampling and shall not be turned off until sampling is completed. e. For studio apartments 3 air samples shall be collected. For 1-bedroom apartments and above, 5 air 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, not taped to existing surface and should be directed downward at a 45 degree angle. f. Common spaces will be sampled without the use of forced air devices (fans, leaf blowers etc). For small spaces, less than 160 square feet, 3 samples will be collected. For large spaces greater than 160 square feet and less than 25,000 square feet 5 samples will be collected. For spaces greater than 25,000 square feet, 1 sample will be collected for each 5,000 square feet. Sampling equipment shall be placed away from obstructions. The sampling cassette must be placed on a tripod directed downward at a 45 degree angle and not taped to existing surfaces. g- Air samples will be collected in accordance with the procedures specified in NIOSH 7400 Method and analyzed by phased contrast microscopy
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NYC-WTC_000140396
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000140430
Draft contract detailing EPA and DEP collaboration on residential dust sampling and cleaning services for residents south of Canal Street.
14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140537
Draft scope of work document detailing compliance requirements and procedures for residential cleaning and air sampling south of Canal Street.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140626
Draft scope of work for WTC debris/dust residential cleanup program with compliance requirements and regulatory overview.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140399
Draft outlining the direct assistance program for residents south of Canal Street, including cleaning and asbestos sampling services.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138918
Internal DEP correspondence discussing EPA draft scope of work for WTC program and clarifying agency roles and responsibilities.
14 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139209
Administrative notice instructs staff to preserve original World Trade Center documents for potential litigation.
14 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138725
EPA transmits revised scopes of work for WTC indoor cleaning and monitoring contracts to DEP.
12 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139101
EPA transmits revised scopes of work documents for the indoor dust cleaning and monitoring program, including cleaning SOW #7 and monitoring SOW #7.
16 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163328
Distribution to environmental organizations, legal advocates, health agencies, unions, and academic institutions.
16 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139232
DEP requests review of attached Scope of Work documents for mold remediation and air monitoring contracts.
14 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139005
EPA final scope of work documents for monitoring and cleaning operations in World Trade Center indoor dust remediation program.
16 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000140280
Document header reiterating the requirement to preserve World Trade Center documents for potential legal proceedings against the City.
Filed in the same folder
Draft contract scope defining regulations and procedures for asbestos cleanup and air sampling assistance programs in Lower Manhattan.
Filed in the same folder
NYC-WTC_000140283
Contract excerpt specifying data submission protocols, laboratory delivery instructions, and monitoring responsibilities for the WTC project.
Filed in the same folder
NYC-WTC_000140284
Addendum to a City contract requiring contractors to handle property claims and authorizing additional financial retainage for performance security.
Filed in the same folder
NYC-WTC_000140286
Review comments on a proposed scope of work document regarding the roles of technicians and monitors in the World Trade Center cleanup process.
Filed in the same folder