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<br /> <br />Red Morton Community Park Sports Lighting Initial Study <br />City of Redwood City 31 June 2015 <br />BAAQMD’s analysis of what levels of pollutants should be deemed significant. The City has <br />determined that the scientific information in BAAQMD’s proposed thresholds of significance <br />analysis provides substantial evidence to support the 2011 thresholds. Therefore, the City has <br />determined the thresholds and methodologies from BAAQMD’s May 2011 CEQA Air Quality <br />Guidelines are appropriate for use in this analysis to determine whether there would be any project <br />operational impacts in terms of criteria pollutants, toxic air contaminants and odors. Evidence <br />supporting these thresholds has been presented in the following documents: <br /> <br /> BAAQMD. CEQA Air Quality Guidelines. Updated May 2011. <br /> BAAQMD. Revised Draft Options and Justification Report California Environmental <br />Quality Act Thresholds of Significance. October 2009. <br /> California Air Pollution Control Officers Association. Health Risk Assessments for Proposed <br />Land Use Projects. July 2009. <br /> California Environmental Protection Agency, California Air Resources Board. Air Quality <br />and Land Use Handbook: A Community Health Perspective. 2005. <br /> <br />The analysis in this Initial Study is based upon the general methodologies in the most recent <br />BAAQMD CEQA Air Quality Guidelines (dated May 2012) and numeric thresholds identified for <br />the San Francisco Bay Area Air Basin in the May 2011 BAAQMD CEQA Air Quality Guidelines, as <br />shown in Table 4.3-1. <br /> <br />Table 4.3-1: BAAQMD Thresholds of Significance Used in Air Quality Analyses <br />Pollutant <br />Construction Operation-Related <br />Average <br />Daily Emissions <br />(pounds/day) <br />Average <br />Daily Emissions <br />(pounds/day) <br />Maximum <br />Annual Emissions <br />(tons/year) <br />ROG, NOx 54 54 10 <br />PM10 82 <br />(exhaust) 82 15 <br />PM2.5 54 <br />(exhaust) 54 10 <br />Fugitive Dust <br />(PM10/PM2.5) <br />Best Management <br />Practices None None <br />Local CO None 9.0 ppm (8-hour average), <br />20.0 ppm (1-hour average) <br />Risk and <br />Hazards for <br />New Sources <br />and Receptors <br />(Project) <br />Same as <br />Operational <br />Threshold <br /> Increased cancer risk of >10.0 in one million <br /> Increased non-cancer risk of > 1.0 Hazard Index <br />(chronic or acute) <br /> Ambient PM2.5 increase: > 0.3 µ/m3 <br />[Zone of influence: 1,000-foot radius from property <br />line of source or receptor] <br />8.A. - Page 48