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Jonathan Hayes - Greystar <br />Updated March 15, 2017 - Page 12 <br /> <br /> <br />Source <br />Cancer Risk <br />(per million) <br />Annual PM2.5 <br />(µg/m3) Hazard Index <br />Plant 17462 – City of Redwood City <br />#5546, 1017 Middlefield Road >900 ft 2.68 0.001 <0.01 <br /> <br />Plant 13509 – Pacific Bell (AT&T), 1121 <br />Jefferson Avenue ~420 ft 3.0 0.004 <0.01 <br />Note: Plants 7748 and 16454 are not listed since published community risk levels were 0.0 or lower for each <br />category. Plant 345 is a dry cleaners that will phase out TAC use in near future, if not already, per State law. <br /> <br />TAC Mitigation <br /> <br />Community risk thresholds for TAC sources affecting the project site were found to be <br />below significance thresholds for both single and combined sources. As a result, features to <br />mitigate or reduce these impacts are not necessary. <br /> <br />* * * <br /> This concludes Illingworth & Rodkin, Inc’s assessment of air q uality community risk issues associated with the proposed El Camino Real and Diller Street Residential project in Redwood <br />City , California. Please do not hesitate to call with any questions or concerns regarding this <br />assessment. <br /> <br />Sincerely, <br /> <br /> <br />James A. Reyff <br />Senior Consultant, Principal <br />Illingworth & Rodkin, Inc. <br />I&R# 16-034 <br /> <br />Attachment 1: Health Impact Evaluation Methodology <br />Attachment 2: Emission Calculations, Dispersion Modeling Summary and Cancer Risk <br />Calculations <br />8.A. - Page 95