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<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 133 <br />3.5 Cultural Resources <br />ENVIRONMENTAL ISSUES <br />Potentially <br />Significant <br />Impact <br />Less than <br />Significant <br />with <br />Mitigation <br />Incorporated <br />Less-than- <br />Significant <br />Impact <br />No Impact <br />a) Would the project cause <br />a substantial adverse <br />change in the <br />significance of a <br />historical resource <br />pursuant to Section <br />15064.5? <br /> <br />b) Would the project cause <br />a substantial adverse <br />change in the <br />significance of an <br />archaeological resource <br />pursuant to Section <br />15064.5? <br /> <br />c) Would the project <br />disturb any human <br />remains, including those <br />interred outside of <br />dedicated cemeteries? <br /> <br /> <br />3.5.1 Environmental Setting <br />The archaeological record in the region of this Study Area is part of the established <br />chronology of the Central Valley region of California, which includes the Sacramento <br />Valley, San Joaquin Valley, and the Sacramento-San Joaquin Delta. Prehistoric <br />resources that have been identified and located thus far in the Delta sub-region date <br />back to as early as 8550 calibrated (cal) years Before Christ (B.C.). While there is <br />potential for resources to exist dating to 11550 cal B.C. or earlier, archaeological <br />deposits having these dates would be associated with landforms that have either been <br />destroyed by natural processes or are deposited under more recent alluvial deposits <br />(Rosenthal et al. 2007; Rosenthal and Meyer 2004). More frequently uncovered in the <br />Study Area sub region are deposits associated with the Middle and Upper Archaic <br />through the Emergent Period (5550 cal B.C. – European Contact). <br />