CORRESPONDENCE_2006-2007 - Laserfiche WebLink

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e San Joaquin County Environmental Checklist temperature,ozone is primarily a summer air pollution problem. The ozone precursors ROG and NO,,are emitted by mobile sources and by stationary combustion equipment. PM10,which consists of particles that can be inhaled deeply into the lungs, results from many kinds of dust-and fume-producing activities,such as demolition,construction,and vehicular traffic. Extended exposure to PM10 can increase the risk of chronic respiratory disease. As indicated in Table 2-2, violations of the state PM 10 standard in San Joaquin County have remained relatively constant between 2003 and 2004 following a substantial drop from 2002. Entrained road dust from motor vehicles accounts for approximately 60% of the regional inventory of PM 10. Due to the predicted increase in the number of vehicle miles traveled and the associated increase in entrained road dust, emissions of PM 10 in San Joaquin County are expected to increase in the future. Although Table 2-2 indicates that CO concentrations do not approach the state standards,CO concentrations in the vicinity of congested intersections and freeways would be expected to be higher than those recorded at the monitoring station. Concentrations of CO have declined in the SJVAB over the past 5 years because of existing regulations that require the use of oxygenated gasoline and because of the continued replacement of older vehicles with newer, lower-CO- emitting vehicles. CO concentrations are expected to continue to decline in the SJVAB because of existing controls and programs and the continued retirement of older,more polluting vehicles. Sensitive Receptors Sensitive receptors are locations of human populations,especially children, seniors,and sick persons,where there is reasonable expectation of continuous human exposure,according to the averaging time for an air quality standard(e.g., 24-hour, 8-hour, 1-hour). These typically include residences, hospitals,and schools. Sensitive receptors in the vicinity of the landfill comprise a residence on the landfill property and five rural residences in the general vicinity(within approximately 1 mile of landfill property boundaries)(Figure 2-3). Impact Discussion a. A project is deemed inconsistent with air quality plans if it would result in population and/or employment growth that exceeds growth estimates set forth in the applicable air quality plan. Accordingly,proposed projects need to be evaluated to determine whether they would generate population and employment growth and,if so,whether that growth would exceed the growth rates specified in the relevant air plans. The proposed project would induce neither population nor employment growth;it would accommodate waste generated by existing and planned land uses. Vertical expansion of the landfill is not considered a Notice of Preparation for the June 2006 North County Recycling Center and Sanitary Landfill 2-17 gas 06307.06Permit Revision