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City of Pleasanton—Villages at the Quarry Project 15183 Consistency Checklist Consistency Checklist 119 programs included as part of the General Plan would ensure that potential impacts associated with expansive soils would be less than significant. Proposed Project Analysis and Conclusion The Geotechnical Report concluded that the upper 10 feet of the existing fill is considered moderately to highly expansive. Per General Plan Program 2.2, the proposed project would be required to comply with the recommendations of the Geotechnical Report, which include implementing the ground improvement program described above, using post-tensioned mat foundations, using a moisture reduction system, and using spread footings for auxiliary structures. As such, impacts related to expansive soils would be less than significant. Therefore, development as proposed would not result in any environmental effects that are peculiar to the proposed project. The proposed project would not result in a new or more severe adverse impact that was not previously identified in the Housing Element Update FEIR. e) Wastewater Disposal Systems Would the project: Have soils incapable of supporting the use of septic tanks or other alternative wastewater disposal systems where sewers are not available? Summary of Housing Element Update FEIR The Housing Element Update FEIR indicated most of the rezoned housing sites are infill sites; thus, new development consistent with the Housing Element Update would primarily occur on parcels that already contain existing homes or businesses. As such, development consistent with the Housing Element Update would be served by the existing sewer system, and most new development would connect to existing sewer lines. However, should any new development require the installation of septic tanks or alternative wastewater disposal systems, the General Plan includes policies and programs to ensure that any new development can be feasibly constructed according to soil conditions. The Housing Element Update FEIR concluded that implementation of policies and programs in the General Plan, as well as applicable Municipal Code requirements, would ensure that new septic tanks or alternative wastewater disposal systems are constructed on soils that can support such systems. Therefore, the impacts would be less than significant.