55A - RESOLUTION CERTIFYING EIR SAN LORENZO SEWER LIFT STATION

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Chapter 3 Findings Regarding Project Alternatives Attachment "A" This alternative also is rejected as infeasible because it would fail to meet, or would not be as effective in achieving, the proposed Project's objectives. Specifically, Alternative Site No. 8 would result in inadequate parking at an existing medical office building, and would, therefore, fail to meet the proposed Project's objective of avoiding detrimental effects to existing businesses. Detrimental effects to the business would be further exacerbated by ongoing construction in close proximity to the medical office building. Further, unlike the proposed Project site where the City has an existing sewer easement, construction at this location would require the City to acquire private property to provide easements for proposed sewer lines. Finally, construction of the lift station at this location would replace currently developed, useable land, in contrast to the proposed Project site, which is vacant and undeveloped. 3.4.11 Alternative Site Location No. 9 (Alternative Site No. 9) 3.4.11.1 Summary of Alternative Site No. 9 Alternative Site Location Number 9 (Alternative Site No. 9) would involve the construction of a replacement lift station in the parking lot of an existing medical complex located at 2720 -2740 South Bristol Street in lieu of the proposed Project site. Alternative Site No. 9 is located approximately 0.20 -mile north of the proposed Project site. The location of Alternative Site No. 9 is depicted on Final EIR Figure 5 -1. Due to the existing configuration of this site and in order to minimize disruptions to the existing use during construction and long -term operation, it is assumed that a replacement lift station at this location would need to be located along or near the western property line. The lift station that would be constructed at Alternative Site No. 9 would include a similar above- ground block structure as the proposed Project. In addition, the lift station at Alternative Site No. 9 would feature similar equipment and appurtenances as the proposed Project. This alternative would require the installation and operation of approximately 12 percent more underground sewer conveyance infrastructure than the proposed Project and it is anticipated that the duration of Construction Phase 11 would be increased by nine (9) work days (approximately two weeks) as compared to the proposed Project. The construction schedule for this alternative would otherwise be similar to the proposed Project. This alternative would not require construction activities within the South Bristol Street/West Segerstrom Avenue intersection or beneath the existing paved right -of -way of West Segerstrom Avenue (east of South Bristol Street). Therefore, this alternative would not require the implementation of Construction Configurations B.1, B.2, C.1, or C.2. However, this alternative would require the installation of new sewer facilities beneath the existing paved right -of -way of South Bristol Street that are not proposed as part of the proposed Project (i.e., to the north of the existing Segerstrom Lift Station). Specifically, this segment of South Bristol Street contains a 20- inch OCSD trunk sewer, a 36 -inch MWD pipeline, a 16 -inch water main, and a SCE/MCI Duct Bank. These utilities would require special support during construction of the new 18 -inch sewer, as the new sewer line would need to be installed at a depth of approximately 16 feet. Construction along this segment of South Bristol Street likely would require supporting the utilities from the top of the trench or the use of trench boxes /shields. 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 San Lorenzo Lift Station EIR (Project No. 06 -3510) 3 -20 CEQA Findings of Fact/Statement of Overriding Considerations 55A -59