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i R Page 65 IM13acts and Mitigation i Standards of Significance According to'CEQA standards, a project that would cause an increase in`traffic that is substantial in relation to the existing traffic load and the capacity of the street system is considered to have ai s gmficant adverse impact on the environment. The minimum acceptable level of service in areas of San Joaquin County outside of a City's sphere of influence is LOS C. Because the study intersections are within the City of Stockton's sphere of influence, however, the City's LOS objective of"D" was used to identify significant adverse impacts. Project Conditions Project Trip Generation , Project trip generation estimates are based on trip generation at the existing landfill site. The peak hour at this site is between 7.00 a.m. and 9:00 a.m. during the AM peak hour, and between 1:00 p.m, and 3:00 p.m. during the PM peak hour. The existing trip generation was proportionately adjusted using the increase/growth for the proposed expansion to derive total trip generation at build out. The difference between buildout and existing was then taken as the additional project trips. Project trip generation estimates for auto and truck trips are shown in Table D-5. ' a Table D-5 ` Project Trip Generation Estimates Conditions Vehicle Total AM PEAK HOUR PM PEAK HOUR r Type Daily In Out Tota! In Out Total Existing Landfill Operation Autos 16 ' .2 2 4 2 2 4 Trucks*, 200 14 -14 28 14 14 28 Total 216 16 16 32 16 16 32 .. C Project E ' F � Expansion Total Autos 32 4. 4 8 4 4 8 t Trucks* 436 31 3.1 62 31 31 62 Total 468 35 35 70 35 35 70 New Project Trips Autos 16 2 2 4 2 2 4 Trucks* 236 17 17 34 17 17 34 z.+ Total 252 . , 19 19 38 19 19 38 0. *Actual truck trips;for PCEs,these would be multiplied by a factor of 2.5 GRASSE777 ENVIRONMENTAL CONSULTING