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

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INITIAL STU DY/M ITIGATED NEGATIVE DECLARATION MAY 2020 FAIRVIEW BRIDGE REPLACE MENT AND STREET IMPROVEMENTS L S A (9TH STREET TO 16TH STREET) PROJECT SANTA ANAL CALL EORNIA f. Would the project directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? Less Than Significant with Mitigation Incorporated. A paleontological resources records search and literature review were conducted to determine the paleontological sensitivity of the Project area. The majority of Project excavation is anticipated to be shallower than a depth of 10 ft, with only the bridge abutments possibly extending to a depth of 15 ft. Any Artificial Fill present within the Project area has no paleontological sensitivity, the Very Young Wash Deposits have low paleontological sensitivity, and the Young Alluvial Fan Deposits have low paleontological sensitivity from the surface to a depth of 10 ft and high paleontological sensitivity below a depth of 10 ft. However, because much of the Project area has been previously developed, excavation into any existing native deposits for the abutments will have a limited impact area. Excavation of the proposed Project may inadvertently encounter and impact paleontological resources. Therefore, if paleontological resources are encountered during the course of ground disturbance, work in the immediate area of the find is required to be redirected, and a paleontologist is required to assess the find for scientific significance to avoid significant impacts to paleontological resources. Mitigation Measure GEO-1 includes these requirements. Therefore, with implementation of Mitigation Measure GEO-1, impacts to paleontological resources would be less than significant. 3.7.3 Mitigation Measures Mitigation Measure GEO-1 Paleontological Resources Discovery. If paleontological resources are encountered during the course of ground disturbance, the Construction Contractor shall stop work in the immediate area of the find, notify the City Public Works Director or designee, and contact a qualified paleontologist to assess the find for scientific significance. If determined to be significant by the qualified paleontologist, the fossil shall be collected from the field. The qualified paleontologist may also make recommendations regarding additional measures, such as paleontological monitoring and documentation. If found, scientifically significant resources shall be prepared to the point of identification, identified to the lowest taxonomic level possible, cataloged, and curated into the permanent collections of a museum repository. If scientifically significant paleontological resources are collected, a report of findings shall be prepared to document the collection. R:\WKE1702\ISMND\Fina1 ISMND\Fairview Street Bridge Final ISMND7,55rBB )77 3-43