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Administrative Draft Environmental Impact Report Gill Medical Center Project would reduce construction-generated emissions below what is required in Rule 9510 and would similarly reduce operational-generated emissions or offset the emissions with payment of a fee, which is then used to fund clean-air projects within the air basin.Therefore, the Project would be consistent with the emission-reduction goals of the SJVAPCD Attainment Plans. This impact is less than significant. Mitigation Measures No mitigation measures are required. Impact 4.5-2 Construction and operation of the proposed project would result in the emission of criteria pollutants. Impact Determination: less than significant with mitigation incorporated Threshold: Result in a cumulatively considerable net increase of any criteria pollutant for which the Project region is nonottainment under an applicable federal or state ambient air quality standard(including releasing emissions which exceed quantitative thresholds for ozone precursors). Construction Air Pollutant Emissions Construction associated with the Proposed Project would generate short-term emissions of criteria air pollutants, including ROG, CO, NOx, PM,o, and PM2.s.The largest amount of ROG, CO, and NOx emissions would occur during grading activity. PM10 and PM2.5 emissions would occur from fugitive dust (due to earthwork and excavation) and from construction equipment exhaust. Exhaust emissions from construction activities include emissions associated with the transport of machinery and supplies to and from the Project site, emissions produced on-site as the equipment is used, and emissions from trucks transporting materials to and from the site. Construction-generated emissions are short term and of temporary duration, lasting only as long as construction activities occur, but have the potential to represent a significant air quality impact. During construction activities, the Project would be required to comply with SJVAPCD Regulation VIII (Fugitive PM10 Prohibitions). The purpose of this rule is to limit airborne particulate emissions associated with construction, demolition, excavation, extraction, and other earthmoving activities, as well as with open disturbed land and emissions associated with paved and unpaved roads.Accordingly, these rules include specific measures to be employed to prevent and reduce fugitive dust emissions from anthropogenic sources. For instance, the Project applicant would be required to prepare a dust control plan. Construction activities anywhere within the regulatory jurisdiction of the SJVAPCD, including the Proposed Project site, may not commence until the SJVAPCD has approved or conditionally approved the dust control plan, which must describe all fugitive dust control measures that are to be implemented before, during, and after any dust-generating activity. Regulation VIII specifies the following measures to control fugitive dust: Apply water to unpaved surfaces and areas. Use nontoxic chemical or organic dust suppressants on unpaved roads and traffic areas. Air Quality 4.5-14 October 2021