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ENVIRONMENTAL IMPACT REPORTADDENDUM <br />Bristol Street Widening Phase IIIA — Civic Center Drive to Washington Avenue <br />The Project site is not located within a habitat conservation plan. Implementation of the proposed Project <br />would not result in greater impacts than previously analyzed in the 1990 FEIS /EIR. <br />Mitigation Measures <br />No new additional mitigation measures are required. <br />3.5 Cultural Resources <br />This section corresponds with Section IV - Environmental Consequences and Mitigation Measures, <br />Subsection T - Cultural Resources, of the previously approved 1990 FEIS /EIR. <br />a.) Cause a substantial adverse change in the significance of a historical resource as defined in <br />§15064.5? <br />A Historic Property Survey Report (Applied Earthworks, 2015) was prepared for the Project to document <br />identification, recordation, and evaluation efforts for architectural resources, such as buildings, structures, <br />objects, districts, and linear features within the Project area. The Historic Property Survey Report <br />concludes with the finding that none of the properties within the Area of Potential Effect (APE) appear to <br />meet the criterion for listing in the National Register of Historic Places or California Register of <br />Historical Resources (CRHR). The historic - period properties within the APE also have been evaluated in <br />accordance with Section 15064.5(a)(2) -(3) of the CEQA Guidelines, using the criteria outlined in Section <br />5024.1 of the California Public Resources Code (CPRC), and do not appear to be historical resources for <br />purposes of CEQA. Implementation of the proposed Project would not result in greater impacts than <br />previously analyzed in the 1990 FEIS /EIR. <br />Mitigation Measures <br />No new additional mitigation measures are required. <br />b.) Cause a substantial adverse change in the significance of an archaeological resource pursuant to <br />§ 15064.5? <br />Due to the limited area of disturbance, within an existing developed and urban area, and limited depth of <br />proposed excavations, the potential to uncover archaeological resources is considered low. However, <br />implementation of mitigation measures as included in the previously approved 1990 FEIS/EIR would <br />reduce impacts to archaeological resources yet uncovered or undiscovered. The proposed Project would <br />not result in archaeological impacts greater than previously analyzed in the 1990 FEIS /EIR. <br />Mitigation Measures <br />No new additional mitigation measures are required. <br />c.) Directly or indirectly destroy a unique paleontological resource or site or unique geologic <br />feature? <br />As documented in Chapter VI, Resources Element, of the County of Orange General Plan, the Project site <br />is not located in an area of paleontological sensitivity. Also, the proposed Project would involve only <br />shallow excavation. Furthermore, since the Project area is already developed, the potential for discovering <br />paleontological resources during construction is low. Soils occurring in the Project area are mostly <br />Quaternary Alluvium. Typically, these deposits are less than 10,000 years old, and not likely to contain <br />305 -011 (PER 02) CITY OF SANTA ANA (01/19/2015) YU PAGE 37 <br />