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III. ENVIRONMENTAL SETTING IMPACTS AND MITIGATION MEASURES E. CULTURAL RESOURCES 3. Is directly associated with a scientifically recognized important prehistoric or historic event." To evaluate archaeological resource sites against such broad criteria requires consideration of the g g q overall integrity of the site,the regional cultural history (the types, ages, and distribution of other cultural resources in the region),and the nature of questions that researchers are attempting to address regarding the history or prehistory of the region. An archaeological site evaluation assesses the potential of each site to meet one or more of the criteria for"unique archaeological resource"based upon visual surface and subsurface evidence at each site location, information gathered during the literature and record searches,and the researcher's knowledge of and familiarity with the prehistoric or historic context associated with each site. IMPACT STATEMENTS AND MITIGATION MEASURES Impact E.1: Implementation of the project may affect unknown, otentiall significant P Y g archaeological resources. (Less than Significant with Mitigation) Although a thorough record and literature search and field survey of the project site conducted by a qualified archaeologist showed no archaeological,historic, or prehistoric sites near the project site,there remains a possibility that previously unknown significant deposits may be encountered while excavating the below-grade roadway at the transfer truck loadout area. Mitigation Measures Identified in this Report Mitigation Measure E.1a: If cultural resources are encountered at any time during project excavation, construction personnel will avoid altering these materials and their context until a qualified archaeologist has evaluated the situation. Project personnel will not collect or retain cultural resources. Prehistoric resources include, but are not limited to, chert or obsidian flakes, projectile points, mortars,and pestles; and dark,friable soil containing shell and bone,dietary debris, heat-affected rock, or human burials. Historic resources include stone or adobe foundations or walls; structures and remains with square nails; and refuse deposits (glass,metal,wood,ceramics),often found in old wells and privies. Mitigation Measure E.1b: In event of accidental discovery or recognition of any human remains,the county coroner shall be notified immediately. If the coroner determines the remains are Native American,the coroner shall contact the Native American Heritage Commission within 24 hours.Following assignment of a Native American Most Likely Descendant (MLD)by the Heritage Commission,the recommendations of the MLD must be followed, if the project applicant (the landowner) is in concurrence with such recommendations. If the applicant is not in concurrence with the MLD recommendations, the Native American Heritage Commission will mediate. Mitigation Measure E.Ic: In the event that historical or potentially unique archaeological resources are accidentally discovered during construction, the find shall be evaluated immediately by a qualified archaeologist. Significance After Mitigation: Less than Significant. Storkton Sravenger Transfer Station Erpansion III.E.4 ESA 1990190