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Sexlinger Farmhouse and Orchard Residential Development Project CEQA Findings reason that with the reduced intensity of the project, impacts will still be less than significant with mitigation incorporated. (January 2014 EIR Attachment, p. 4.) 2. Impact: Would the Project violate any air quality standard or contribute significantly to an existing or projected air quality violation? Finding: Less Than Significant, With Mitigation Incorporated. (EIR, p. 5 -10 through 5 13.) Analysis: SCAQMD has established daily emissions thresholds for several criteria pollutants. While the proposed project will result in unmitigated daily construction emissions below all thresholds for regional significance (EIR, Table 5 -1), and for NOX and CO thresholds for local significance (EIR, Table 5 -3), the proposed project would exceed daily construction thresholds for PM10 and PM2.5. Short-term, unmitigated daily construction impacts will result in PM10 and PM2.5 emissions that exceed the AQMP thresholds for particulate matter. Therefore, this impact is potentially significant. However, with the implementation of the following mitigation measures, particulate matter emissions will be reduced to less than significant: AIR -1: In order to reduce particulate matter emissions during project construction, nontoxic soil stabilizers or comparable dust suppressant shall be applied to all inactive construction areas (previously graded areas inactive for five consecutive days or more). Chemical soil stabilizers, if used, shall be applied according to manufacturer's specifications. AIR -2: In order to reduce particulate matter emissions during construction, exposed surfaces shall be watered three times a day. AIR -4: In order to reduce particulate matter emissions during construction, speeds on unpaved roads will not exceed 15 miles per hour. The incorporation of these measures will reduce PM2.5 and PM10 emissions. This is because chemical stabilizers will reduce dust pick up from inactive graded areas, spraying exposed dirt with water will reduce fugitive dust emissions, and reducing the speed of trucks on unpaved areas will reduce dust kick -up. In total, these measures are expected to reduce PM2.5 emissions from 5.17 pounds per day to 1.55 pounds per day. (EIR, Table 5 -3, compared to Table 5 -5.) As the PM2.5 threshold is 4 pounds per day, PM2.5 would be reduced to a level of less than significant, with incorporation of the above mitigation measures. Similarly, emissions of PM10 would be reduced from 21.08 pounds per day, to 3.74 pounds per day. As the PM10 threshold is 6 pounds per day, PM10 would be reduced to a level of less than significant with incorporation of the above mitigation measures. (EIR, Table 5 -3, compared to Table 5 -5.) Given that the project proposal analyzed in the Draft FIR included development of 24 new single family residences, and the project as approved will include development of only 22 new single family residences, it stands to reason that with the reduced intensity of the project, 7 53570 "Exhibit A"