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in the 1983 EIR and 1996 Addendum, and thus the Project would not result in any new significant sensitive receptor impacts. This justification is entirely unsubstantiated, as neither the 1983 EIR nor 1996 Addendum evaluated the health risk Impacts associated with any Project activities. Additionally, neither the 1983 EIR nor 1996 Addendum made any significance determination regarding the Project's health risk impacts. Therefore, the Applicant cannot rely on the 1983 EIR or 1996 Addendum to claim that the 2019 Addendum Project would result in a less than significant impact. Furthermore, the SCAQMD recommends performing an HRA for any project that is expected to generate mobile emissions from diesel -powered equipment and trucks. According to SCAQMD's Mobile Source Toxics Analysis page on SCAQMD's website (emphasis added): "In August 2002, the SCAQMD's Mobile Source Committee approved the 'Health Risk Assessment Guidance for Analyzing Cancer Risks from Mobile Source Diesel Emissions.' This document provided guidance for analyzing cancer risks from diesel particulate matter from mobile sources at facilities such as truck stops and warehouse distribution centers. Subsequently, SCAQMD staff revised the aforementioned document to expand the analysis to provide technical guidance for analyzing cancer risks from potential diesel particulate emissions impacts from truck idling and movement (such as, but not limited to, truck stops, warehouse and distribution centers, or transit centers), ship hotelling at ports, and train idling. This revised guidance document titled, 'Health Risk Assessment Guidance for Analyzing Cancer Risks from Mobile Source Diesel Idling Emissions for CEQA Air Quality Analysis' was presented to and approved by the SCAQMD's Mobile Source Committee at its March 28, 2003 committee meeting. It is suggested that projects with diesel powered mobile sources use the following guidance document to quantify potential cancer risks from the diesel particulate emission."' As you can see in the excerpt above, the SCAQMD explicitly states that if the proposed Project generates or attracts vehicular trips, a mobile source health risk assessment must be prepared. Namely, the SCAQMD states that "it is suggested that projects with diesel powered mobile sources" use the SCAQMD's Health Risk Assessment Guidance "to quantify potential cancer risks from the diesel particulate emission."' Given that Project construction is expected to occur over a 16-year period, it is reasonable to assume that a significant amount of diesel particulate matter (DPM), a known human carcinogen, will be emitted from the exhaust stacks of equipment required for Project construction (2019 Addendum, pp. 2769). Similarly, operational activities will result in large amounts of diesel exhaust from vendor trucks visiting the hotel and commercial land uses over the course of Project operation (Table T-4, 2019 Addendum, p. 78). As such, the 2019 Addendum should have conducted a construction and operational HRA, as long-term exposure to DPM and otherTACs may result in a significant health risk impact and therefore, should be properly assessed. 8 SCAQMD (2019) Mobile Source Toxics Analysis, http://www.aamd,gov/home/regulations/ceaa/air-auality- an a I_ysis-hand book/mobile-sou rce-toxics-analysis. 9 SCAQMD (2019) Mobile Source Toxics Analysis, http://www.aclmd.gov/home/regulations/ceaa/air-quality- analvsis-h a nd book/mobile-sou rce-toxics-analysis.