04_AECOM_Environmental Report_Final

Air Quality Madeling Report 1. Project Overview Wonder Group, Inc. (Wonder) is proposing to expand their West Orange, New Jersey meat smoking operation, located on Eagle Rock Avenue. The proposed expansion includes construction of a new smoking shed that will allow for the operation of twelve (12) total wood-fired meat smokers, increasing the capacity of the facility from the current four (4) wood-fired smokers that are being operated (the “Projact”). Each smoker may operate up to twelve (12) hours a day once all smokers are installed and operational. To address public concern about this expansian’s impact on air quality, specifically impacts of particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs), which are classified as hazardaus air pollutants (HAPs) by the New Jersey Department of Environmental Protection (NJDEP}, Stack testing and air dispersion modeling was conducted to estimate potential impacts due to the proposed expansion. Stack testing on one of the existing smokers provided actual emission rates of PM and PAH that were used for the dispersion modeling. For the purposes of this analysis, all PM emissions were conservatively assumed to be particulate matter with an aeradynamic diameter of less than 2.5 microns (PM2 5). 1.1 Purpose of the Report The purpose of the air quality evaluation and modeling report is as follows: « Topresent the sources of air emissions and their stack-tested emission rates; « Todetail the air dispersion modeling methodology, meteorological data, and receptor locations that were used to assess the air quality impacts of the emission sources; and + Topresent resultant modeled concentrations of PMs, and PAH and their comparison to appropriate federal National Ambient Air Quality Standards (NAAQS) and state health risk assessment thresholds. This report was prepared based on NJDEP and United States Environmental Protection Agency (USEPA) modeling guidance, including NJDEP’s Guidance on Preparing a Risk Assessment for Air Contaminant Emissions {Technical Manual 1003, 2018) and the USEPAs 2022 AERMOD implemeniation Guide (USEPA 2022). 1.2 Organization of the Report The report includes the following sections: Section 2 — Source Description provides the site location and description, source stack parameters, and emission rates that were modeled. Section 3 — Applicable Emission Standards addresses the

ons: Section 2 — Source Description provides the site location and description, source stack parameters, and emission rates that were modeled. Section 3 — Applicable Emission Standards addresses the federal and state emission standards used to evaluate potential air quality impacts. Section 4 — Modeling Analysis describes the modeling approach and model selection, NAAQS analysis, and air toxics risk analysis. Section 5 — Modeling Results provides the resultant modeled concentrations and their comparison to appropriate standards. Section 6 — References. AECOM 3