2012-001 - Statement of Overriding Considerations, and Adopting a Mitigation Monitoring and Reporting Program

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Chapter 3 Findings Regarding Project ABematAss Attachment 'A' • feet, and this depth would increase with distance from the existing facility. Construction along this segment of South Bristol Street would require supporting the utilities from the top of the trench and/or the use of trench boxes/shields, which would elongate the construction schedule. Due to these existing utility constraints beneath South Bristol Street, portions of this roadway would need to be closed to accommodate construction associated with this alternative, which has the potential to result in adverse effects to vehicular circulation. Implementation of this alternative would otherwise be similar to the proposed Project during construction conditions. Development of a lift station at Alternative Site No. 15 also would require the City to acquire private property to implement a temporary construction easement, accommodate the proposed lift station, and provide easements for proposed sewer lines. 3.4.17.2 Summary Comparison of Environmental Effects The environmental effects of constructing the proposed lift station at Alternative Site No. 15 in comparison to the proposed Project site are shown in Final EIR Table 5-1 and described in detail in RDEIR Section 5.4.17. This alternative would avoid the Project's significant and unavoidable impact associated with Construction Configuration C.2; however, this alternative would create a significant and unmitigable near-term impact to transportation/traffic due to a LOS deficiency that would occur for approximately 90 days during construction, which is an increase in duration as compared to the twenty-five (25) days of construction during which the proposed Project would create a significant unavoidable impact to transportation/traffic at the South Bristol Street/West Segerstrom Avenue intersection. Impacts to transportation/traffic would also occur when construction activities disrupt left-turn movements, thereby diverting traffic to adjacent intersections • or encouraging cut-through traffic in local neighborhoods; such impacts would not occur in association with the proposed Project. As such, impacts to transportation/traffic would be greater at Alternative Site No. 14 as compared to the proposed Project site, and mitigation would not be available to reduce these effects to less than significant levels, as there is no way to construct this alternative without affecting the travel lanes within South Bristol Street, and because there is no way to avoid affecting left turns along South Bristol Street during construction. Total construction air quality/greenhouse gas emissions would be increased under this alternative due to a longer construction period, although average daily construction emissions would be similar to the proposed Project and would be less than significant. In addition, construction-related impacts to water quality and hydrology would be increased under this alternative due to an increased area of impact, although such impacts would be less than significant. Long-term odor impacts associated with accident conditions and near-term noise impacts associated with nighttime dewatering activities would be slightly decreased under this alternative, due to the increased distance to nearby sensitive receptors, although as with the proposed Project such impacts would be less than significant due to implementation of Mitigation Measures MM 3.3-1 and 3.3-2. Impacts related to noise, utilities and service systems, and water quality and hydrology (long-term) would be similar to the proposed Project and would be less than significant. 3.4.17.3 Finding and Rationale for Alternative Site No 15 The City hereby finds that specific economic, legal, social, technological, or other considerations make Alternative Site No. 15 infeasible. • San Lorenzo Lift Station EIR (Project No. 06-3510) 3-34 CEQA Findings of Fact/Statement of Overriding Considerations