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San Joaquin Valley Air Pollution Control District Page 4 of 8 District Reference No: 20230359 May 11 , 2023 3 ) Ambienti , h, Qua itL&-� nag - fSOS An Ambient Air Quality Analysis (AAAA ) uses air dispersion modeling to determine if emissions increases from a project will cause or contribute to a violation of State or National Ambient Air Quality Standards . The District recommends an AAAA be performed for the Project if emissions exceed 100 pounds per day of any pollutant . An acceptable analysis would include emissions from both project - specific permitted and non - permitted equipment and activities . The District recommends consultation with District staff to determine the appropriate model and input data to use in the analysis . Specific information for assessing significance , including screening tools and modeling guidance , is available online at the District ' s website : www . valleVair . org /cega . 4 ) True Ro � � ur� ©� Truck routing involves the assessment of which roads Heavy Heavy - Duty ( HHD ) trucks take to and from their destination , and the emissions impact that the HHD trucks may have on residential communities and sensitive receptors . The District recommends the County evaluate HHD truck routing patterns for the Project , with the aim of limiting exposure of residential communities and sensitive receptors to emissions . This evaluation would consider the current truck routes , the quantity and type of each truck ( e . g . , Medium Heavy - Duty , HHD , etc . ) , the destination and origin of each trip , traffic volume correlation with the time of day or the day of the week , overall Vehicle Miles Traveled ( VMT ) , and associated exhaust emissions . The truck routing evaluation would also identify alternative truck routes and their impacts on VMT and air quality . 5 ) Reduce Idling of Heavv - Duty Trucks The goal of this strategy is to limit the potential for localized PM2 . 5 and toxic air contaminant impacts associated with the idling of Heavy - Duty trucks . The diesel exhaust from idling has the potential to impose significant adverse health and environmental impacts . Since the Project is expected to result in HHD truck trips , the District recommends the environmental review include measures to ensure compliance of the state anti - idling regulation ( 13 CCR § 2485 and 13 CCR § 2480 ) and discuss the importance of limiting the amount of idling , especially near sensitive receptors . 6 ) Electric ® n - Site ® ffmRoad and ® n - Road Equipment Since the development project may include Heavy Industrial and Light Industrial uses , the Project may have the potential to result in increased use of off- road