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SANTA ANA REZONE PROJECT <br /> INITIAL STUDYIMITIGATED NEGATIVE DECLARATION <br /> respiratory problems. Human studies on the carcinogenicity of DPM demonstrate an increased risk of <br /> lung cancer, although the increased risk cannot be clearly attributed to diesel exhaust exposure. <br /> Construction and operation of the proposed project would be subject to applicable SCAQMD rules <br /> and requirements. The SCAQMD CEQAAir Quality Significance Thresholds were developed to assist <br /> local jurisdictions and lead agencies in complying with the requirements of CEQA regarding <br /> potentially adverse impacts to air quality.'$ <br /> Would the project: <br /> a) Conflict with or obstruct implementation of the applicable air quality plan? <br /> Less than significant impact. The 2022 Air Quality Management Plan (AQMP) is the current <br /> applicable regional Air Quality Plan (AQP) of SCAQMD. The primary goals of the AQP are to protect <br /> public health and protect the climate. The 2022 AQMP includes the integrated strategies and <br /> measures needed to meet the National Ambient Air Quality Standards (NAAQS). Furthermore, the <br /> 2022 AQMP demonstrates attainment of the 1-hour and 8-hour ozone NAAQS as well as the latest <br /> 24-hour and annual PM2.5standards.19 <br /> Because the proposed project does not involve population or employment growth, determining <br /> consistency with the 2022 AQMP involves assessing whether applicable control measures contained <br /> in the 2022 AQMP are implemented and whether implementation of the proposed project would <br /> disrupt or hinder implementation of AQP control measures.All projects within SCAQMD's jurisdiction <br /> are required to implement Rule 403 as the Best Available Control Measures (BACMs) during <br /> construction activities. The proposed project would implement all BACMs consistent with Rule 403 <br /> during construction activities and would be consistent with the assumptions in the AQMP. <br /> Furthermore, the proposed project is a typical construction design for parking lots and would not <br /> include any special features that would disrupt or hinder implementation of the AQMP control <br /> measures. <br /> In addition, if a project's emissions do not exceed the SCAQMD regional thresholds for VOC, NOx, <br /> CO, SOx, PM1o, or PM2.5, it follows that the project's emissions would not exceed the allowable limit <br /> for each project in order for the region to attain and maintain ambient air quality standards, which is <br /> the primary goal of air quality plans.As shown in Impact 2.3(b), the proposed project would not <br /> exceed the SCAQMD's regional thresholds of significance during construction and operation. <br /> Therefore, the proposed project would not conflict with or obstruct implementation of the 2022 AQMP. <br /> This impact would be less than significant. <br /> 18 South Coast Air Quality Management District(SCAQMD).2023.Air Quality Significance Thresholds.Website: <br /> https:/A wwJ agmd.govldocs/default-sourcelcegalhandbook/south-coast-agmd-air-quality-significance- <br /> thresholds.pdf?sfvrsn=f7601d61_25.Accessed July 25,2025. <br /> 9 South Coast Air Quality Management District(SCAQMD).2022.Air Quality Management Plan. <br /> FCS ((fi�r j r1�n (�29 <br /> NttpsJ/adeelnno-Iions.sharepumLf rnJlites/Publimtr,ns tte/Shared Documents/Publications/CH-t IPN-INJI0327/0327a 7/ISMNO/o3274047 Santa Ana Rezone Prtp fs4�l,I�e Dce No. NS-3092 <br /> Page 41 of 118 <br />