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City of Redwood City, Public Works Division Initial Study & Mitigated Negative Declaration <br />Document Date: October 15, 2015 <br />Revision Date: January 25, 2016 Page 15 Blankinship & Associates, Inc. <br /> <br />quality standards, or contribute to an existing or projected violation based on data available <br />from the Bay Area Air Quality Management District. <br /> <br />Item c): No Impact. Levels of ozone and suspended matter (PM2.5) in San Mateo County have <br />exceeded California Clean Air standards, and therefore the area is considered a <br />“nonattainment” area for these pollutants. Although San Mateo County is nonattainment for <br />both PM2.5 and ozone California Clean Air standards, the Project will not increase either of <br />these criteria pollutants. <br /> <br />Items d) & e): No Impact. Aquatic herbicides containing copper will be applied by City or <br />contractor personnel. Applications will take place in the Lagoon. Applications are typically brief <br />in duration and made infrequently (i.e. a few times per year). Applications are not made near <br />schools, health care facilities, or day care facilities, thereby eliminating exposure to these <br />sensitive receptors and creating no impact. Similarly, there will be no objectionable odors that <br />affect a substantial number of people as a result of the application of copper-containing <br />aquatic herbicides. <br /> <br />6.3.A. - Page 23