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ii <br />' <br /> seismically induced ground acceleration. The proposed project site has <br /> several factors required for liquefaction to occur. Groundwater was <br /> encountered at a depth of 5 feet below surface and surface soils were <br /> cohesionless uniform soils. The proposed project site would be suitable <br /> for construction, with the implementation of recommendations included in <br />' the referenced Geotechnical Investigation Report. <br /> A4. Landslides? <br />' No Impact. The proposed project site is located on flat, featureless terrain, <br /> hence the potential for earthquake induced landslides or landslides due to <br /> cuts into slopes are nonexistent. No further study is necessary, and no <br /> mitigation measures are required. <br /> B. Result in substantial soil erosion or the loss of topsoil? <br />' Less than Significant Impact With Mitigation Incorporation. The soil in the <br /> proposed project area consists of Hueneme fine sandy loam. This soil type is <br /> nearly level and generally occurs on large alluvial fans or flood plains. The soil is <br />characterized by slow runoff and slight erosion hazard. The current site is <br /> composed of an asphalt-paved parking lot and an agricultural field currently <br />' planted with row crops. Construction activities, including grading, would displace <br />soils and temporarily increase the potential for soils to be subject to wind and <br /> water erosion. The proposed project will be required to comply with standard <br /> engineering practices for erosion control and qualified personnel will monitor soil <br /> compaction during the construction phase. Preparation of a Storm Water Pollution <br /> Prevention Plan (SWPPP) would reduce potential soil erosion impacts to less than <br /> significant levels. Furthermore, construction impacts would be short-term and <br />' cease upon completion of the proposed project. <br />The proposed project will also convert the existing agricultural field, a site that <br />' most likely experiences substantial erosion and top soil loss, into a parking lot <br />with various pervious and impervious surfaces. As mentioned in the Geotechnical <br />Investigation Report, an adequate drainage system should be provided behind <br />' applicable retaining walls to prevent the build-up of hydrostatic pressure. <br />Implementation of mitigation measures including the City's Best Management <br />Practices (BMPs) applied to minimize losses related to soils, recommendations in <br />' the Geotechnical Investigation Report, and implementation of standard <br />engineering practices would reduce impacts to less than significant levels. <br />' Mitigation Measures <br />GEO-1 Refer to WQ-1 and WQ-2 in Hydrology and Water Quality, below. <br />C. Be located on a geologic unit or soil that is unstable, or that would become <br />unstable as a result of the project, and potentially result in on- or off-site <br />landslide, lateral spreading, subsidence, liquefaction or collapse? <br />' Less Than Significant Impact. The soil in the proposed project area consists of <br />Hueneme fine sandy loam. This soil type is nearly level and generally occurs on <br />large alluvial fans or flood plains. The soil is characterized by slow runoff and <br />45 <br />Initial Study/Mitigated Negative Declaration July 2008 <br />Harbor Medical and Retail Center ~ C /~ ~ Q <br />