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loam. The lower part to a depth of 60 inches is variegated dark grayish j brown and brown, weakly to strongly cemented hardpan. Depth to hardpan ranges from 40 to 80 inches. In some areas the surface layer is silty clay, silty clay loam, or clay loam. The main limitations of this soil to development are high shrink-swell capacity, slow permeability, rare flooding, and low strength (USDA 1987) . Kleinfelder performed field explorations on 21 January 1988 which consisted of drilling one test boring in the southwest corner of the project site to a depth of approximately 30 feet below existing ground surface. The soils encountered at the location explored consist of dark gray brown clay from the surface to a depth of approximately 5 feet. Below this depth, light brown to brown sandy and silty clays were encoun- tered to the maximum depth explored of 30 feet. No free groundwater was encountered in the test boring drilled. Impacts and Mitigation Measures Impact I - Seismically-Induced Geologic Hazards Because the site is located in an area of active faults, the proposed project would likely experience moderate groundshaking during its lifetime. In an earthquake, the buildings and other features of the project could be subject to structural damage if the foundation materials and the structures themselves were not well -engineered. This, in turn, could result in the upset of hazardous materials, namely the waste oil , stored and used on-site. Other types of seismically-induced hazards such as liquefaction and lurching are not expected to occur on-site. Mitigation Measures. The design of structures on-site should comply with seismic requirements of the current Uniform Building Code. Safety features discussed in the System Safety/Hazardous Materials section of this EIR such as bolting oil tanks onto raised concrete pads and placing a polyethylene membrane between the tanks and concrete pad should help to prevent contamination of the environment as a result of a earthquake. In addition, the detailed recommendations that are to b presented in Kleinfelder's Task II report for foundations, support of 3-48 101-44.R3 4.110/89 ',