75A - PH ADOPT RESO FOR WELL 32 IMPROVEMENTS

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City of Santa Ana Well No.32 Rehabilitation Project Final Initial Study/Mitigated Negative Declaration discovered during construction, and procedures to follow in the event an inadvertent discovery (Inadvertent Discovery Plan) is encountered, including appropriate treatment and respectful behavior of a discovery (e.g., no posting to social media or photographs). If requested, a local tribal representative(s) shall be invited to participate in the environmental training to discuss or provide text from a tribal cultural perspective regarding the cultural resources within the region. CUL 2: Archaeological Monitoring — The implementing agency shall retain a qualified archaeological monitor during ground disturbing activities within native soils (below the fill level) that have the potential to impact significant archaeological resources, as determined by a qualified archaeologist in consultation with the implementing agency, and any local Native American representatives expressing interest in the Project. CUL 3: Inadvertent Discovery of Archaeological Resources During Construction — A qualified archaeologist shall prepare an Inadvertent Discovery Plan for the Project. During Project -level construction, should subsurface archaeological resources be discovered, all activity in the vicinity of the find shall stop and a qualified archaeologist shall be contacted to assess the significance of the find according to CEQA Guidelines Section 15064.5. If any find is determined to be significant, the archaeologist shall determine, in consultation with the implementing agency and any local Native American groups expressing interest, appropriate avoidance measures or other appropriate mitigation. Per CEQA Guidelines Section 15126.4(b)(3), preservation in place shall be the preferred means to avoid impacts to archaeological resources qualifying as historical resources. Methods of avoidance may include, but shall not be limited to, Project re-route or re -design, Project cancellation, or identification of protection measures such as capping or fencing. Consistent with CEQA Guidelines Section 15126.4(b)(3)(C), if it is demonstrated that resources cannot be avoided, the qualified archaeologist shall develop additional treatment measures, such as data recovery or other appropriate measures, in consultation with the implementing agency and any local Native American representatives expressing interest in prehistoric or tribal resources. If an archaeological site does not qualify as an historical resource but meets the criteria for a unique archaeological resource as defined in Section 21083.2, then the site shall be treated in accordance with the provisions of Section 21083.2. GEO-1: Inadvertent Discoveries of Paleontological Resources — If the construction staff or others observe previously unidentified paleontological resources during ground disturbing activities, they will halt work within a 200-foot radius of the find(s), delineate the area of the find with flagging tape or rope (may also include dirt spoils from the find area), and immediately notify a qualified paleontologist. Construction will halt within the flagged or roped -off area. The paleontologist will assess the resource as soon as possible and determine appropriate next steps in coordination with the City. Such finds will be formally recorded and evaluated. The resource will be protected from further disturbance or looting pending evaluation. NOISE-1: Construction noise levels shall fluctuate depending on the construction phase, equipment type and duration of use, distance between noise source and sensitive receptor, and the presence or absence of barriers between noise source and receptors. Therefore, the Project applicant should require construction contractors to limit standard construction activities as follows: • Equipment and trucks used for Project construction shall utilize the best available noise control techniques (e.g., improved mufflers, equipment redesign, use of intake silencers, ducts, engine enclosures and acoustically -attenuating shields or shrouds, wherever feasible). • Stationary noise sources shall be located as far from adjacent receptors as possible and shall be muffled and enclosed within temporary sheds, incorporate insulation barriers or other measures to the extent feasible. December 2019 78A4-52 Q