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<br />2656 29th Street, Suite 201 <br />Santa Monica, CA 90405 <br />Matt Hagemann, P.G, C.Hg. <br /> (949) 887-9013 <br /> mhagemann@swape.com <br />Paul E. Rosenfeld, PhD <br /> (310) 795-2335 <br /> prosenfeld@swape.com <br />November 18, 2019 <br /> <br />Mitchell M. Tsai <br />155 South El Molino Avenue <br />Suite 104 <br />Pasadena, CA 91101 <br /> <br />Subject: Comments on the First American Mixed-Use Project (SCH No. 20006071100) <br />Dear Mr. Tsai, <br />We have reviewed the August 2019 Environmental Impact Report Addendum (“Addendum”) for the <br />First American Mixed-Use Project (“Project”) located in the City of Santa Ana (“City”). The Project <br />proposes to construct 220 residential units, 13,350 square feet of retail space, and 332 parking stalls on <br />the approximately 1.7-acre site. <br />Our review concludes that the Addendum fails to adequately evaluate the Project’s Air Quality, Health <br />Risk, and Greenhouse Gas impacts. As a result, emissions and health risk impacts associated with <br />construction and operation of the proposed Project are underestimated and inadequately addressed. An <br />updated Addendum should be prepared to adequately assess and mitigate the potential air quality and <br />health risk impacts that the project may have on the surrounding environment. <br />Air Quality Unsubstantiated Input Parameters Used to Estimate Project Emissions <br />The Addendum’s air quality analysis relies on emissions calculated with CalEEMod.2016.3.2.1 CalEEMod <br />provides recommended default values based on site-specific information, such as land use type, <br />meteorological data, total lot acreage, project type and typical equipment associated with project type. <br />If more specific project information is known, the user can change the default values and input project- <br /> <br />1 CAPCOA (November 2017) CalEEMod User’s Guide, http://www.aqmd.gov/docs/default- <br />source/caleemod/01_user-39-s-guide2016-3-2_15november2017.pdf?sfvrsn=4.