SR 06:101 - Laserfiche WebLink

~r~ ptf5' ...t)N Exhibit A monitoring station, pollutant control policy/regulatory framework, and the attainment status of the Bay Area Air Basin with respect to established air quality standards. Region-wide monitoring data for toxic air contaminants will also be reviewed, and the average health risks due to exposure to ambient concentrations of air toxies, including particulate matter from diesel exhaust, will be identified using BAAQMD Toxic Inventory Reports. In addition, given the increased awareness of exposure to air toxics from heavily traveled roadways, the EIR will discuss the State Air Resources Board' s Air Quality and Land Use Handbook: A Community Health Perspective (April 2005) assessment toxic air emissions, their effect on sensitive receptors, and recommendations for reducing such exposures. Plans and programs in place to manage regional air quality will be introduced. The topography, wind patterns, and climate around Pleasanton will also be documented based on recent EIRs and available information from the Pleasanton General Plan Update. The impact analysis will include four basic components: . A review of effects caused during construction phases; An analysis of new emissions caused during occupation and use of the housing and commercial uses; A discussion of potential sources and effects of odors and toxic air contaminants; and . . . An analysis of local ambient CO impacts (if heavily congested traffic would occur). In all cases, the method of analysis and selection of significance thresholds will rely on methodologies that are documented in the BAAQMD CEQA Guidelines, revised in 1999. Estimates of the new motor vehicle emissions associated with project trips will be prepared using the Air Resources Board's current URBEMIS model. This model will provide a quantitative assessment of project emissions from all motor vehicle trips generated by the project. The results will be compared to the BAAQMD's quantitative significance thresholds. Odors are not expected to be a concern since the residential, commercial, and recreational uses are not expected to involve any activities, processes, or materials that would be of concern. The potential of the project motor vehicle trips to cause localized carbon monoxide "hot spots" will be evaluated at and near the most severely impacted intersections defined by the traffic analysis performed by Dowling Associates. The Air Resource Board's CALINE4 dispersion model will be used to estimate the levels of carbon monoxide during weekday peak conditions for the both the interim and cumulative years of analysis. The modeled I-hour and g-hour average carbon monoxide concentrations will be compared to the state and federal air quality standards. Project potential for air toxic exposure will be evaluated according to the guidelines established for sensitive land uses by the Air Resources Board's Air Quality and Land Use Handbook E'P Associates 2-12