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determine whether the fire-suppression techniques were temporary or <br /> more permanent. <br /> Existing monitoring probes adjacent to the demonstration area will be <br /> measured for subsurface temperature and carbon monoxide content prior <br /> and subsequent to the fire suppression demonstration. <br /> 2.4.2 Perimeter Air Monitoring <br /> Prior to and during intrusive waste trenching and foam application,ERM <br /> will perform air monitoring to assess both worker health risk and <br /> appropriate levels of personal protective equipment and potential <br /> downwind air impacts resulting from exposure and disruption of the <br /> burning waste mass. Conventional landfill gases including hydrogen <br /> sulfide and methane will be monitored within the active work zone and at <br /> "exclusion zone' perimeter locations to ensure worker safety. In addition, <br /> toxic air emissions will be quantified as described below. <br /> The target air toxic compounds to be measured will include VOCs,PAHs, <br /> and the dioxin/furan congeners. The VOCs will be measured using <br /> USEPA Method TO-15 with collection in a 6-liter,evacuated SUMMA <br /> canister. The canister will be equipped with a pre-set flow controller to <br /> maintain a constant sampling rate over the sampling period. Analysis will <br /> be performed by Columbia Analytical Services in Simi Valley,California, <br /> by gas chromatography/mass spectrometry(GC/MS). <br /> The PAHs and dioxins/furans will be measured using a high-volume <br /> sampler equipped with a quartz filter,followed by Tenax or XAD-2 resin <br /> sandwiched between two plugs of polyurethane foam(PUF)in <br /> accordance with USEPA Methods TO-13A and TO-9A,respectively. The <br /> downwind sampling station will consist of one SUMMA canister and one <br /> PUF sampler. If power is not available to run the high-volume samplers, <br /> portable generators will be deployed,placed downwind of the sampling <br /> stations and as far away as possible to avoid biasing the samples. <br /> The PAH and dioxin/furan samples will be shipped overnight at 4 C <br /> under chain-of-custody to Vista Analytical Laboratory in Sacramento, <br /> California,for analysis. These compounds are analyzed using high <br /> resolution GC/MS after solvent extraction of the sampling media. <br /> ERM 11 KAILUA-KONA LANDFILL/0061204-3/1412008 <br />