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Draft Supplemental Environmental Impact Report Page IV.0-4 Forward Inc. Landfill 2014 Expansion Project ` Noise Measurements In order to characterize the current ambient noise conditions near the project site, the noise two measurements in the project area were updated by RCH Group (RCH) in July of 2014. Unattended noise measurements were conducted for 72 hours at four locations along Austin Road in the project area. In addition, two short-term consecutive 5-minute measurements were conducted at the same four locations and at two other locations;one along Austin Road and the other along Newcastle Road, northwest of the project site. The measurement locations were similar to those in the 2013 EIR,with the exception of Site 3, which was relocated south of the curve on Austin Road. Figure IV.0-1 illustrates the noise measurement site locations. The noise measurement locations are described in Table IV.0-3. 6 All noise measurement results are presented in Table IV.0-3, and Appendix E presents detailed data associated with the long-term measurements. Noise measurements were along the roadsides and not at the outdoor activity areas. However, the data collected at these sites were used as confirmation of .. noise model estimates of noise levels at outdoor activity areas. The ambient noise levels were higher at each measurement site location than those presented in the 2013 EIR. Increased noise may be attributed to traffic increases from the California Health Care Facility,which began operating north of the landfill in 2013. At Site 1, the operation of a new power plant across the road has increased background noise levels. Sensitive Receptors Land uses that are sensitive to noise are residential areas, schools, convalescent and acute care hospitals, some parks and recreational areas, and churches and other religious facilities. In the 2013 EIR, the only sensitive receptors identified near the proposed project expansion sites are rural residences. In 2013, operations began at California Health Care Facility on the site of the former Karl Holton Youth correctional facility on Austin Road. The nearest existing sensitive receptors to the ' proposed expansion areas and the haul routes are: • A residence is along Austin Road is approximately 1,300 feet south-southeast of the northeast expansion area; • Two residences are along Arch Road,west of Austin Road. One residence is approximately 65 feet from the road centerline and the other is approximately 120 feet from the road centerline; +.. • Five residences are along Austin Road,between Arch Road and the project driveway. These residences are between approximately 70 and 120 feet east of the road centerline; �. • Three residences are along Austin Road,south of the project driveway, the closest of which is approximately 100 feet east of the road centerline; • At least five residences are along French Camp,west of Austin Road, the closest of which is .. approximately 100 feet from the road centerline;and • At least six residences are along French Camp, east of Austin Road,the closest of which is approximately 80 feet from the road centerline. • California Health Care Facility,west of Austin Road. The facility is approximately 280 feet from the road centerline and 2,500 feet northwest of the northeast expansion area.