DEP requests review of attached Scope of Work documents for mold remediation and air monitoring contracts.
NYC-WTC_000139232–000139256Folder label: “2002 E-Mail Sent M. Gilsenan”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
conducted. Residents shall not be present in their residence during aggressive air sampling activities. 1. Before beginning aggressive air sampling, a 1 horsepower electric leafblower 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. When directing the exhaust, caution shall be taken to minimize disturbance and potential damage to furnishings and personal belongings. ii. HVAC systems shall be shut down or isolated locally during aggressive air sampling. Hi. Room and window air conditioners shall hot be operated during aggressive air sampling. iv. Leaf blowers shall not be employed for modified aggressive air sampling. V. All other procedures are identical for aggressive and modified aggressive air sampling, unless otherwise noted. b. At least one 20-inch fan shall be placed in the center ofeach room sampled. One fan per 10,000 cubic feet ofroom 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 throughput sampling and shall not be turned off until sampling is completed. /. c. 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 fi-omobstructiOhs. The sampling cassette must be placed on a tripod, nottaped to existing surface and should be directed downward at a 45 degree angle. d. Common spaces will be sampled without the use offorced air devices (fans, leafblowers etc). For small sp^es, 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 sp^xs 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, not taped to existing surfaces and directed downward at a 45 degree angle and e. Air samples will be collected in accordance with the procedures specified in NIOSH 7400 Method for PGM and 7402 for TEM. Air sampling cassettes need to be monitored to ensure that cassettes are not clogging by monitoring flow rates. The minimum sample volume required is 3600 liters. All clearance air samples and copies of necessary documentation shall be hand delivered daily to EMSL Laboratories at: 307 W. 38* St., New York, New York 212-290-0051. f. Wipe samples will be collected at 10 percent ofthe residences where sampling only has been requested, up to a maximum of50 residences, as instructed by EPA. This sampling will consist ofthe collection of3 wipe samples each for dioxin, total metals and mercury (Note: a separate wipe sample is required for each parameter at each location). Metals and mercury wipe samples will be collected in accordance with procedures specified in
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NYC-WTC_000139239
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000138918
Internal DEP correspondence discussing EPA draft scope of work for WTC program and clarifying agency roles and responsibilities.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139209
Administrative notice instructs staff to preserve original World Trade Center documents for potential litigation.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138774
EPA provides final versions of scopes of work for the WTC indoor dust cleaning program.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
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 · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139069
EPA scope of work documents for World Trade Center indoor dust cleaning program monitoring and remediation procedures.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138805
EPA delivers final scopes of work for WTC indoor dust cleaning and monitoring program to DEP.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
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.
15 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139029
EPA final scope of work documents for World Trade Center indoor dust cleaning and monitoring program forwarded to NYC project managers.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139830
Memo discusses finalizing agency roles in the monitoring program and addresses required indemnification letters and right of entry issues.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138626
Distribution of revised scopes of work documents for WTC indoor cleaning and monitoring contracts.
11 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161325
Final scope of work documents for indoor dust cleaning and monitoring contractor activities in WTC cleanup program.
16 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163328
Distribution to environmental organizations, legal advocates, health agencies, unions, and academic institutions.
15 shared non-person entities · 1 shared topics · similarity 0.996
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_000139208
Instructional notice requiring retention of scanned WTC documents as potential evidence in future legal actions against the City.
Filed in the same folder
NYC-WTC_000139209
Administrative notice instructs staff to preserve original World Trade Center documents for potential litigation.
Filed in the same folder
NYC-WTC_000139257
DEP official requests final review of the latest air monitoring Scope of Work to conclude negotiations.
Filed in the same folder
Filed in the same folder
NYC-WTC_000139360
DEP official asks if new mold regulations require inclusion in the cleaning scope for 125 Cedar Street.
Filed in the same folder