NYC-WTC_000232249

NYC 9/11 Public Portal Document

5.0 SAMPLING AND ANALYSES METHODOLOGY A summary of all sampling and analyses methods proposed for use during the deconstruction of 130 Liberty Street is provided in Table 2. All analytes will be measured at each of the seven (7) stations identified in Section 2.0 of this plan during all three (3) of the program phases. These phases as defined in Section 3.0 of this plan include background monitoring (2 weeks prior to Phase I), Phase I - Asbestos and COPC Abatement, and Phase II - Structural Deconstruction. As noted, all samples in Table 2 will be collected over 24-hour integrated time periods with the exception of asbestos, PMio and mercury vapor employing the Lumex device. Asbestos samples will be collected over 4-12 hour averaging periods, while PMio measurements will be collected on a continuous near “real time” basis. Proper chain of custody procedures will be employed for all intregrated samples collected. Details regarding the sampling and analyses methods planned for each type of target parameter is provided in the following sections.

Table 2. Summary of Sampling and Analyses Methods Sample Duration Per Analyte Sampling Method Comments Rate* day Metals Antimony, Barium, TSP High Volume Air 10001pm 24 hours XRay-Fluoresence (XRF) Beryllium, Cadmium, Sampler 40 CFR Part EPA Metliod IO 3.3 Chromium, Copper, 50 App B Eead, Manganese, Nickel, and Zinc Mercury (Gas) Ohio Lumex RA 915-1- 20 1pm Instantaneously Elemental (gas) Mercury Direct Read Analysis Mercury (Total) lodated Carbon Trap 4 1pm 24 hours with eVAE Particulate and Dust Asbestos NIOSII 7402 2-6 1pm Minimum of 4 Analysis via AIIERA Mod. hours Methodology Particulate PMio Met One EBAM 16.7 1pm 24 hours Respirable Crystalline NIOSH 0600/7500 2.5 1pm 24 hours SKC Aluminum Cyclone Silica and Dust Organics (semivolatile) Dioxins/Furans EPA TO 9A 200-300 1pm 24 hours Quartz Fiber Filter and PUF (PCDDs/PCDFs) Cartridge Polychlorinated EPA TO 4A 200-300 1pm 24 hours Quartz Fiber Filter and PUF biphenyls (PCB) Caihidge Polycyclic Aromatic EPATO 13A 200-300 1pm 24 hours Quartz Fiber Filter and Hydrocarbons (PAH) PUE/XAD-2 “Sandwich” Cartridge *lpm = tilers per minute

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C ITY_D E P_WO RB Y_C AN N ATA_SU B P_000114892

NYC-WTC_000232261