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Demolition involves removing buildings or structures <br />Site Preparation involves clearing vegetation (grubbing and treelstump removal) and <br />removing stones and other unwanted material or debris prior to grading. <br />Grading_involves the cut and fill of land to ensure that the proper base and slope is created <br />for the foundation. <br />Building Construction involves the construction of the foundation, structures and buildings. <br />Architectural Coatlno involves the application of coatings to both the interior and exterior of <br />buildings or structures, the painting of parking lot or parking garage striping, associated <br />signage and curbs, and the painting of the walls or other components such as stair railings <br />inside parking structures. <br />Paving involves the laying of concrete or asphalt such as in parking lots, roads, driveways, <br />or sidewalks. <br />As such, by disproportionately altering individual construction phase lengths without proper <br />justification, the model's calculations are altered and underestimate emissions. Thus, by including <br />unsubstantiated changes to the Project's anticipated individual construction phase lengths, the model <br />may underestimate the Project's maximum daily construction -related emissions and should not be <br />relied upon to determine the significance of the Project's air quality impacts. <br />Unsubstantiated Amount of Demolition <br />According to the CalEEMod User's Guide, "[h]aul trips are based on the amount of material that is <br />demolished, imported or exported assuming a truck can handle 16 cubic yards of material."11 Therefore, <br />the air model calculates a default number of hauling trips based upon the amount of demolition <br />material inputted into the model. <br />Regarding the amount of demolition required for Project construction, the Addendum states: <br />"The proposed project involves demolition of two existing buildings, Northgate Gonzalez Market <br />and Munoz Auto & Tire Repair" (p. 2-10). <br />Furthermore, review of the Project's CalEEMod output files demonstrates that the model calculated a <br />default value of 267 hauling truck trips (see excerpt below) (Appendix B, pp. 86, 118, 239). <br />Number 1 Number <br />Demolition • <br />5i 1100, <br />0.00 <br />257.00 <br />-•-----•-•-----•1-----'"_-_-_-'I•-•-•--b.- <br />SilePreparetion <br />-•.•-----------�"-------------I---•-----• <br />31—f-6.OD� <br />0 <br />0.00: <br />---------1 <br />Grernng <br />41—h1000, <br />0.00 <br />000� <br />-- -- ---------------------- <br />-►---------- I...... <br />- <br />---------! <br />Builring ConsWction <br />81 19TOO, <br />48.00 <br />0.00� <br />-----------'------ <br />---------- i---•----- <br />---------� <br />Pevirg <br />61 15.00� <br />0.00 <br />0.00: <br />Mchitedural Coating <br />1 39.00; <br />0.0 <br />0.00• <br />" htto://www.agmd.gov/dots/default-source/caleemod/02 appendix-a2016-3-2.odf?sfvrsn=6. p. 14 <br />75C-80 <br />