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will not be directly visible to this residence. Furthermore, because the project site is surrounded by almond orchards on all sides and because there is a long private driveway connecting the project site to East River Road, motorists traveling along East River Road and other rural residences in the area do not have direct views of the project site. Although the lighting would not be directly visible from identified sensitive receptors, there is a potential to create a source of glare on a River Road). River Road is a public road and recognized by the County as a scenic route;therefore,this impact is considered potentially significant. Mitigation Measures Measure 3.1.1: All outdoor lighting will be required to be fully shielded and shall adhere to Section 9- 1025.6 of the Development Code in order to minimize any impacts resulting from outdoor lighting on adjacent properties. Significance After Mitigation: The use of shielding and compliance with County standards for outdoor lighting would reduce the potential impact to less than significant. Transportation and Traffic A Traffic Study was conducted to determine the extent to which the proposed extension of operating hours to include nighttime activities at the Project site would adversely affect traffic flow conditions on area roadways, on the basis of estimated hourly trip generation during the nighttime hours of 9:00 PM to 5:00 AM, and the evaluation of level of service conditions with and without the Project. The intensity and nature of the Project activities associated with extending operating hours would vary, and the number of vehicle trips generated by that activity would similarly vary. The Project is expected to generate a maximum of 33 loaded truck trips (66 one-way truck trips) during the first extended hour (9:00 to 10:00 PM) and about 13 loaded truck trips (26 one-way truck trips) per hour between 10:00 PM and 5:00 AM, resulting in approximately 248 one-way truck trips between 9:00 PM and 5:00 AM. A loaded truck trip is considered a round trip (loaded truck leaves facility, travels to job site, and returns empty), and is comprised of two one-way trips. Project-generated trips during subsequent hours (from 10:00 PM to 5:00 AM) would have less of an effect on traffic flow conditions than during the above-described peak nighttime hour, as Project trips would be lower, and background traffic volumes during those later hours are lower. Thus, the proposed Project would neither conflict with an applicable plan, ordinance or policy establishing measures of effectiveness for the performance of the circulation system, nor conflict with an applicable congestion management program, including, but not limited to level of service standards and travel demand measures, or other standards established by the county congestion management agency for designated roads or highways. Mitigation: None required. Air Quality and Climate Change The EIR determined that the operation of the asphalt batch plant during the proposed nighttime operations is considered a potentially significant impact even after mitigation. A qualitative analysis was done based on previous odor complaints attributed to the facility from the operation of the asphalt batch plant. Dispersion modeling was conducted to evaluate concentrations of H2S and potential odor impacts at the nearest sensitive residential receptors. Dispersion modeling analysis shows a potential maximum 1-Hour H2S concentration of 20 ug/m3. The California ambient air quality standard for H2S is 42 pg/m3. Thus, the project is not expected to result in ground-level concentration known to produce odor impacts; however, the number of complaints from the operation of the asphalt batch plant is considered potentially significant. San Joaquin County QX-89-0002/Aggregates Inc. Community Development Page 5