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and NOx emissions over the No Project alternative, expanding the transfer station to handle the <br /> proposed waste volumes shows a slight advantage in terms of air quality. <br /> Further air quality projections were made for CO concentrations at the nearest sensitive receptor <br /> to determine the local impact of project traffic. The receptor chosen for this analysis was the <br /> adjacent mobile home park luted along Beckman Road south of Turner Road. <br /> The CO concentrations were determined using CALINE-4 software distributed by the California <br /> Air Resources Board. "Worst case" runs were made using: 1) today's traffic at this <br /> unsignalized intersection, 2) traffic estimates at the intersection in the year 2000 with the project <br /> in place and signalized traffic operations, and 3) traffic estimates at the intersection (signalized) <br /> in the year 2000 with no project. Hourly volumes selected are those expected during afternoon <br /> peak traffic hours. Ambient CO concentration was assumed to be 10 ppm. The receptor <br /> location was at the southeast comer of the intersection as shown on the Figure 7. It was ten <br /> meters south of the centerline of Turner and ten meters east of Beckman Road. <br /> Results of the CO modeling are shown below. <br /> Year CQ m <br /> 1990 11.4 <br /> 2000 with Project 11.6 <br /> 2000 No Project 11.5 <br /> According to the above calculations, the CO emission excepted would not exceed the average <br /> California emission standard of 20 ppm for a time period of one hour. <br /> 24 <br />