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LSA ASSOCIATES. INC. CLQA INITIAL STUDY /MITIGATED NEGATIVE DECLARATION <br /> MARCH loll PREDA STREET PIPE BRIDGES UPGRADE <br /> SAN LEANDRO. CALIFORNIA <br /> Less Than <br /> Significant <br /> Potentially with Less Than <br /> Significant Mitigation Significant No <br /> Impact Incorporated Impact Impact <br /> V. CULTURAL RESOURCES. Would the project: <br /> a) Cause a substantial adverse change in the significance of LI • ❑ ❑ <br /> a historical resource as defined in §15064.5? <br /> b) Cause a substantial adverse change in the significance of O • 0 LI <br /> an archaeological resource pursuant to §15064.5? <br /> c) Directly or indirectly destroy a unique paleontological U • 0 LI <br /> resource or site or unique geologic feature? <br /> d) Disturb any human remains, including those interred out- LI • LI U <br /> side of formal cemeteries? <br /> Affected Environment: <br /> LSA conducted a cultural and paleontological resources study for the project site that included a <br /> records search, inquiries to the Native American Heritage Commission (NAHC), a field review, and a <br /> written report detailing the methods, results and recommendations (LSA Associates, Inc. 2009). No <br /> archaeological or built environment cultural resources that meet the definition of historical resources <br /> were identified in the project area. Bridge R does not possess any significant historical associations. <br /> nor does it represent distinctive design or construction characteristics. <br /> Discussion: <br /> a) Cause a substantial adverse change in the significance of a historical resource as defined in <br /> §15064.5? <br /> Less Than Significant with Mitigation Incorporated. The structures in the project area, the <br /> pipe bridges, do not have the potential to qualify as historical resource under CEQA. Their <br /> modification by the proposed project is not expected to result in a significant impact. No further <br /> study or protection of the bridges is warranted. <br /> Although unlikely, prehistoric and/or historical archaeological deposits could be encountered <br /> during project ground- disturbing activities. Such deposits, if intact, may qualify as historical <br /> resources or unique archaeological resources under CEQA. Prehistoric materials can include <br /> flaked -stone tools (e.g., projectile points, knives, choppers) or obsidian, chert, basalt, or quartzite <br /> toolmaking debris; bone tools; culturally darkened soil (i.e., midden soil often containing heat - <br /> affected rock, ash and charcoal, shellfish remains, faunal bones, and cultural materials); and stone <br /> milling equipment (e.g., mortars, pestles, handstones). Historical materials can include wood, <br /> stone, concrete footings, walls, and other structural remains; and deposits of wood. glass, <br /> ceramics, metal, and other refuse. If any prehistoric and/or historical archaeological deposits are <br /> uncovered during construction activities, implementation of Mitigation Measure CULT -1, <br /> described below, would reduce potential impacts to a less than significant level. <br /> P: \EGI080I \CEQA\Preda_FINAL IS-MND.doc (03/28/I I) 24 <br />