75B - PH ADOPT RESO FOR PR NO 15-6827

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L S A FAIRVIEW BRIDGE REPLACEMENT AND STREET IMPROVEMENTS (9TH STREET TO 16TH STREET( PROJECT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION SANTA ANAL CALIFORNIA MAY 2020 historical resources would occur as a result of the construction and operation of the proposed Project. No mitigation is required. b. Would the project cause a substantial adverse change in the significance of an archaeological resource pursuant to §15064.5? Less Than Significant with Mitigation Incorporated. A single shell fragment (Chione californiensis was found in the APE in an undeveloped area on the west side of Fairview Street just south of the Santa Ana River. No other cultural resources were found in the vicinity; thus, the resource is an isolated find. Isolated finds are not considered important/significant under CEQA. As such, the isolated shell fragment found in the current APE is not an important resource and requires no further evaluation. No additional archaeological resources were identified within the APE through archival research or the field survey. The majority of the APE consists of paved asphalt and concrete sidewalk along Fairview Street from Westminster Avenue/17th Street south to Civic Center Drive. A small amount of acreage also includes areas outside of the sidewalk including adjacent streets, and the building, lawn, and parking lot at 1002 Fairview Street. All surveyable areas in the APE exhibited high levels of disturbance from road and bridge construction and adjacent home construction. Buried utilities have also added to the disturbance of the APE. The entire APE has been substantially altered during previous construction activities. As such, the likelihood of encountering intact archaeological resources is very low. However, if previously unidentified cultural materials are unearthed during construction, work should be halted in that portion of the Project area until a qualified archaeologist can assess the significance of the find. As a precautionary measure to avoid any impacts to potential archaeological resources, Mitigation Measure CULT-1 requires a professional archaeologist to evaluate any cultural material encountered during construction. Therefore, with implementation of Mitigation Measure CULT-1, the proposed Project would not cause a substantial adverse change in the significance of an archaeological resource. c. Would the project disturb any human remains, including those interred outside of formal cemeteries? Less Than Significant with Mitigation Incorporated. No known human remains are known to exist in or near the Project area. However, there is a possibility that unanticipated human remains may be encountered during ground -disturbing Project -related activities. As a precautionary measure, Mitigation Measure CULT-2 requires adherence to California Code of Regulations (CCR) Section 15064.5(e), State Health and Safety Code Section 7050.5, and Public Resources Code (PRC) Section 5097.98, with respect to discovery of human remains during construction activities. With implementation of Mitigation Measure CULT-2, the proposed Project would reduce the potential for impacts to unknown buried human remains to a less -than -significant level. 3-32 75r 466,1413\FinalISMND\Fairview Street Bridge Final ISMND.docx(OS/26/2O)