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7.B. - Page 75 Redwood City Chapter 4.Environmental Impact Analysis • Pave,apply water three times daily,or apply(non-toxic) soil stabilizers on all unpaved access roads,parking areas and staging areas at construction sites. . Sweep streets daily(with water sweepers) if visible soil material is carried onto adjacent public streets. Mitigation Measure 4.5-1 (2007 FEIR Mitigation Measure 4.5-1):During construction activities, the following"Enhanced Control Measures"would be implemented to control emissions of PM10. . Enclose,cover,water twice daily or apply(non-toxic) soil binders to exposed stockpiles (dirt,sand,etc.). . Limit traffic speeds on unpaved surfaces to 15 mph. . Install sandbags or other erosion control measures to prevent silt runoff to public roadways. . Replant vegetation in disturbed areas as quickly as possible. Table 4.4-4. Daily Construction Emissions PM10 PM2.5 ROG CO NOx Dust Exhaust Total Dust Exhaust Total Daily Average 1.97 7.37 12.07 0.72 0.95 1.67 0.38 0.76 1.14 Emissions (lbs/day) BAAQMD Thresholds 54 - 54 BMPs 82 - BMPs 54 - Exceed Threshold? No - No - No - - No - Source:Ashworth Leininger Group 2012. Operational Emissions Less-than-Significant New Impact.The new operational emission impacts associated with the project plus the proposed modifications were determined by totaling the increase in emissions estimated in the 2007 FEIR,which included 16 fueling positions at the fueling center,and the additional emissions generated by adding 4 new fueling positions to the fueling center.Table 4.4-5 and Table 4.4-6 summarize the emissions estimated in the 2007 FEIR,additional emission increase by expanding the fuel station from 16 fueling positions to 20 fueling positions,and the total net emission increase as a result of the project plus the proposed modifications. Operational emissions associated with the proposed modifications of the fueling center include emissions generated by vehicles traveling to the station and queuing at the station,emissions generated by gasoline delivery trucks,and emissions generated by gasoline during vehicle refueling. Emissions from vehicle trips and vehicle queuing for the 16 fueling positions and 20 fueling positions are estimated based on the daily trips forecasts conducted by the project's traffic consultant(Kittelson&Associates, Inc.)5.Emissions from gasoline delivery trucks and vehicle 5 The ALG report includes an analysis of an Extreme Maximum scenario in which forecast trips to the 20-position fuel station would double with the proposed modifications.However,as discussed in the Transportation and Traffic analysis and the traffic studies prepared by Kittelson&Associates,Inc.,there is no direct correlation between trip generation and fuel sales volume.Thus,a simple doubling of forecast trips associated with the proposed modifications would be speculative,and the most appropriate trip generation estimates for the purposes of this analysis are those described above in the Transportation and Traffic analysis.It should be noted that even with a doubling of forecast trips,as identified in the ALG report,air quality impacts would remain less than significant. Addendum No.2 to the Environmental Impact Report for 4-30 September 2012 the Redwood City Costco Wholesale Project ICF 00154.12