04_AECOM_Environmental Report_Final

Memo Wonder Group, Inc. Expansion Stack Testing Methodology Stack testing, also known as source testing or emission testing, is a procedure used to measure pollutants emitted from vents or stacks. During stack testing, samples of gases or discharges are collected from these sources and then analyzed to determine the concentrations and/or emission rates of specific compounds being emitted out of the vents ar stacks. This test program was designed to quantify emissions of PM and PAH. Testing was completed using EPA test methods. Three (3) test runs were conducted at one of the exhaust stacks while the smoker was operated at the maximum achievable load condition. During testing, a strict quality assurance/quality control (QA/QC) program adhering ta the procedures outlined in the referenced EPA test methods identified abave was fallowed. Samples taken at the stack were transferred to a laboratory in Knoxville, TN for analysis. Emissions from the test runs were averaged and reported as an hourly mass emission rate (pounds per hour [Ib/hr]). Each smoker may operate up to twelve (12) hours a day once all smokers are installed and operational. Therefore, hourly emission rates were converted to an annual emission rate {tons per year) by assuming year- round operation of the wood-fired smokers for 12 hours per day, 365 days per year (4,380 hours per year). These emission rates are shown in Table 1. Additional details on the stack testing methodology and results have been provided in the stack test report in Appendix A. Table 1 Emission Rates Per Smoker PM Hourly Annual Pollutant {Ib/hr) (tons/year) PM 0.014 0.060 PAH 2.87E-04 §.28E-04 Dispersion Modeling Methodology Air dispersion modeling is the use of mathematical formulations to simulate atmospheric processes and predict the dispersion of pollutants. This tool incorporates emissions from sources and meteorological conditions to estimate pollutant concentrations downwind from the source(s) of emissions. By doing so, the model can be used to demonstrate compliance with air quality regulations and standards. The dispersion modeling was performed following NJDEP and United States Environmental Protection Agency (USEPA) modeling guidance, including NJDEP’s Guidance on Preparing a Risk Assessment for Air Contaminant Emissions’ and the USEPA's 2022 AERMOD Implementation Guide’. The modeling analysis was conducted

SEPA) modeling guidance, including NJDEP’s Guidance on Preparing a Risk Assessment for Air Contaminant Emissions’ and the USEPA's 2022 AERMOD Implementation Guide’. The modeling analysis was conducted with meteorological data provided by NJDEP. The USEPA’s AERMOD air emissions dispersion model was used to estimate concentrations (yg/m?) of PMz5 and PAH from the proposed wood-fired smokers for comparison to the applicable air quality standards, which are discussed in the next section. For the purposes of this evaluation, a cumulative assessment was conducted to account far both PM emissions. from the proposed project, as well as the contribution of PM emissions from other nearby sources. Actual measured concentrations taken from a nearby representative monitor operated by the NJDEP were used to establish PM concentrations from the other nearby sources. The closest, most representative monitor for the Wonder site is the Chester monitor, located approximately 22 miles to the west-southwest of the Wonder facility. The monitored design concentrations were added to the modeled concentrations of annual and 24-hour PMz5. ' NJDEP 2018. Technical Manual 1003. Guidance on Preparing a Risk Assessnient for Air Contantinant Emissions. New Jersey Department of Environmental Protection. Division of Air Quality. USEPA 2022. AERMOD Implementation Guide. EPA-454-B-22-008, Office of Air Quality Planning and Standards, Research Triangle Park, NG 27711, Available at: https://gaftp.epa.gov/Airlagmg/SCRAM/models/preferred/aermod/aermod_implementation_quide.pdf AECOM aw