Technical specifications for air quality monitoring work at two Manhattan buildings.
NYC-WTC_000163360–000163368Folder label: “E-mails M. Gilsenan”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Wipe Sampling Technicians Wipe sampling technicians must have 1 year experience in wipe sampling for a variety of contaminants. Employees shall have received state certified training in dust sampling. At a minimum at least 2 Wipe Sampling Technicians must be assigned to this project.
Analytical Laboratory The New York State Department of Health must certify the environmental laboratory. Certification for all the analytes of interest must have been maintained for at least six consecutive proficiency testing rounds. Laboratory must possess a Gas Chromatograph equipped with a capillary column and a high resolution Mass Spectrometer for analyzing Dioxin and Inductively Coupled Plasma for Total Metals. Cold Vapor Method apparatus be used for Mercury analysis.
Proof of qualifications must be presented upon request to the DEP.
Specifications
Work area preparation and cleaning activities of the building interior is expected to be completed within 3 weeks. The monitoring contractor must be prepared to mobilize within 72 hours of the contract award. Cleaning activities shall be scheduled for 20 units per day. Air sampling shall be scheduled and completed within 24 hours of successful visual inspection by the Project Monitor.
Sampling equipment must be in sufficient quantity to provide the amount and type of samples required for this project. At a minimum the following equipment are required: air-sampling pumps with maximum flow rate capacity of 15 liters per minute, tripods, rotometers, sample cassettes with mixed cellulose ester filters having pore size of 0.8 microns, micro vacuum, disposable porous cellulosic towellette moistened with wetting agent and solvent-wetted sampling agent.
Laboratory must have all analytical instruments on site wi1h sensitivities to the lowest level of detection as required by the analytical methods for each analyte.
All appropriate data, original field forms/data sheets, chain of custody forms and typed reports must be accurate and complete before submittal to DEP.
Project Monitoring
The project monitor shall provide oversight of clean-up activities to ensure compliance with project specifications, tenants authorizations, and applicable rules and regulations. The project monitor shall be present on site during all cleaning activities. The project monitor shall coordinate all scheduling requirements for timely completion of the work (completion of work area preparation and cleaning activities is expected to be completed within 3 weeks). The project monitor shall maintain the inventory of valuable items in each unit as
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NYC-WTC_000163372
Request to send the air monitoring scope document to legal counsel and the sender due to computer access issues.
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Request for review of monitoring contractor specifications for air sampling, including sampling methodologies, limits of detection, and clearance criteria, with reference to prior…
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162838
Correspondence regarding Schedule A forms and a draft scope of work for cleaning and air monitoring contracts at the site.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156019
Document tracking the chain of custody for environmental samples collected at 125 Cedar Street on August 21, 2002.
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Document tracking the chain of custody for environmental samples collected at 114 Liberty Street on August 22, 2002.
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Contractor work scope for air monitoring and environmental surveillance at 125 Cedar building.
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NYC-WTC_000096827
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Letter from DOHMH transmitting results of a July 2002 mold inspection at 125 Liberty Street.
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NYC-WTC_000139360
DEP official asks if new mold regulations require inclusion in the cleaning scope for 125 Cedar Street.
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