AECOM Report B&W - N - City of Guelph

City of Guelph2008 Annual ReportClosed Eastview Road Landfill SiteThe 2008 ambient vinyl chloride monitoring program followed the same sampling and analytical protocolsthat were carried out in years 1995 through 2006 for landfill post closure continuity. Readers interested in thedetails of the sampling and analytical protocols are referred to the 1995 Eastview Landfill Annual Report.The protocols have been modified somewhat to match the requirements of the MOE’s guideline documententitled “Operating Manual for Point Source Air Quality Monitoring”.Dioxins and Furans (PCDDs and PCDFs)In response to concerns raised at a public meeting held on June 20, 2001, with respect to air emissionsrelated to the installation of a pilot scale LLFG flare, ambient levels of polychlorinated dibenzodioxins(PCDDs) and polychlorinated dibenzofurans (PCDFs) were measured from years 2001 through 2008. Thesame concerns exist with the combustion of landfill gas in the diesel generators now used to createelectricity. Four samples were taken during the 2008 survey. Of the four samples, 2 were collecteddownwind of the site at the fence line, 1 was collected upwind of the site at the fence line and 1 collecteddownwind of the site in the adjacent residential area.Sampling and analytical techniques for PCDDs and PCDFs were based on the protocols defined by theUnited States Environmental Protection Agency’s Method TO-9. Ambient samples of PCDDs and PCDFswere collected using high volume PS-1 samplers outfitted with cartridges containing a filter and polyurethanefoam sample media. All samples were taken over a 24-hour period. Wellington Laboratories in Guelph,Ontario, completed the sample media preparation and laboratory analysis of the exposed samples.7.1.2 Year 2007 Ambient Survey ResultsRegulatory CriteriaThe ½-hour (POI) standard for vinyl chloride is 1.0 μg/m 3 (3,000 ng/m 3 ). The MOE defines this in Schedule 1under O. Reg. 419/05. Table 14 summarizes the applicable MOE vinyl chloride limits for this study.Table 14.Summary of MOE Vinyl Chloride Guidelines in μg/m3Averaging Time Value in (μg/m3) Regulatory Criteria Type½-Hour 1 StandardNote: With the implementation of O.Reg. 419/05, the annual vinyl chloride AAQC of 0.2 µg/m 3programs is no longer a listed criteria for comparison.used in previous testingSeventeen dioxin and furan isomers/congeners (7 PCDD and 10 PCDF) were analyzed and reported foreach sample, and the total toxicity equivalent (TEQ) concentrations were determined. The 17isomers/congeners are listed in Tables 15 (Dioxins) and 16 (Furans) with their respective Internationaltoxicity equivalency factors (I-TEFs). The I-TEFs were applied to the measured dioxin and furanconcentrations to convert them to 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) toxicity equivalents.(111414_2ra_apr29-09_city_of_guelph.doc) - 54 -