Chain of custody form for DEP environmental samples, 2001

NYC 9/11 Public Portal Document

1.4 The Proj ect Team

The study was designed, implemented and managed by EPA staff with the assistance of EPA’s contractors; WRS Infrastructure and Environment, Inc. (WRS) and Weston Solutions, Inc. (Weston).

EPA's project team consisted of three individuals from the Region 2 Removal Action Branch detailed to the region’s New York City Response and Recovery Operations (NYCRRO). The individuals included a Section Chief and two On-Scene Coordinators (OSCs) who were responsible for overall management and oversight of the contractors assigned to the project. All communication regarding site work activities, work scheduling, difficulties encountered, deviations from the work plan or sampling plan, and project progress were addressed by the OSCs on a daily basis.

The WRS project team consisted of fourteen individuals: the response manager, the site health and safety officer, the project coordinator/field accountant, the foreman, and seven laborers who were supported by the program manager, the alternate program/contracts manager, and the corporate health and safety manager. WRS provided equipment and services associated with the cleaning operations.

The Weston project team consisted of eight individuals: the project manager, two sample technicians, two technical writers, one technical artist and two data validators who were supported by the program manager and assistant program manager. Weston provided deliverables and services associated with the sampling operations.

1.5 Cleaning Methods

The Residential Confirmation Cleaning Study called for the testing of eleven cleaning methods. These ranged from basic vacuuming with standard household equipment, to wet vacuuming of carpets, to the use of commercial quality vacuums equipped with High EflBciency Particulate Air (HEPA) filters, to wet wiping with water only or soap and water, to cleaning of HVAC systems.

The study focused primarily on cleaning methods used to clean residential living areas. However, two commercial units were included in the study. Cleaning of the commercial units was necessary to avoid the redistribution of dust from uncleaned areas to clean areas, because the commercial units were located on the same floor of the building as the apartments. These units also provided an opportunity to gain experience relative to the cleaning of heating, ventilation, and air conditioning units that may have been impacted by the WTC collapse. Cleaning of the commercial units was a condition of the access agreement agreed to with the building owner.

At the time of the WTC attack, these two commercial units had been used as a Chiropractor's Office and a retail Mattress Store. To complete the remainder of the building, three additional commercial units, including two restaurants (Lemongrass Grill and The Food Exchange) and a Barber Shop were cleaned.

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