55C - RESO - BRISTOL ST IMPROVEMENTS

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ENVIRONMENTAL IMPACT REPORTADDENDUM Bristol Street Widening Phase IIIB — Washington Avenue to 17" Street BRISTOLIWARNER (ADD NB/EBISB THRU LNS; WB RT TRN LN) AND BRISTOURRST (ADD NB/SB THRU LNS; SB LFTIRT /TRN LNS), The Project's design concept and scope have not changed significantly from what was analyzed in the RTIP and FTIP. This analysis found that the plan and, therefore the individual projects contained in the plan, are conforming projects and would have air quality impacts consistent with those identified in the SIPS for achieving the NAAQS. The FHWA determined the RTIP to conform to the SIP. The proposed widening of Bristol Street, from Warner Avenue to Memory Lane has been included in the FTIP since 1992. The FTIP gives priority to eligible Transportation Control Measures (TCMs) identified in the SIP and provides sufficient funds to provide for their implementation. The FHWA determined the FTIP to conform to the SIP on April 2, 2009. No significant impacts would occur. Implementation of the proposed Project would not result in greater impacts than previously analyzed in the 1990 FEIS /EIR. Furthermore, the South Coast Air Basin (SCAB) is designated by the state and US Environmental Protection Agency (EPA) as nonattainment for ozone (03), and particulate matter (PM10 and PM2.5). The South Coast Air Quality Management District (SCAQMD) developed regional emissions thresholds to determine whether or not a project would contribute to air pollutant violations. If a project exceeds the regional air pollutant thresholds, then the project would substantially contribute to air quality violations in the SCAB. In addition, a project would also contribute to air pollutant violations if localized emissions result in an exceedance of the ambient air quality standards (AAQS). Based on the Air Quality Assessment Report performed by URS Corporation (2013) for the Project, short -term emissions generated during Project- related construction activities would not exceed the SCAQMD regional emissions thresholds for any of the criteria pollutants and also would not substantially elevate localized concentrations of these pollutants. Consequently, the Project would be consistent with the Air Quality Management Plant (AQMP). Long -tern emissions generated by the Project would not exceed the SCAQMD thresholds for regional emissions and would therefore also not contribute to an increase in frequency or severity of air quality violations. The proposed Project would be consistent with the Major Arterial designation of the City of Santa Ana General Plan Circulation Element and the County of Orange's Master Plan of Arterial Highways. Additionally, the Project would improve traffic flow and result in a reduction in air pollutant emissions. Mitigation Measures No additional new mitigation measures are required. b.) Violate any air quality standard or contribute substantially to an existing or projected air quality violation? Short -term emissions were modeled for the construction phase of the proposed Project. Construction activities associated with the Project would include demolition of pavement and buildings, fine grading, ANA I11 -334 (PER -02 -01) CITY OF SANTA ANA (11/25/2013 REV2) 132897 CM PAGE 22 55C -37