GEOTECHNICAL SERVICES: Geotechnical and geologic consulting services offered by PSE vary from basic feasibility level studies to complex geotechnical investigations for large land development projects and include technical observation and testing services during grading and construction.  Commonly addressed geotechnical concerns involve geology, site seismicity, groundwater hydrology, liquefaction potential, remedial earthwork considerations, foundation design, construction/earthwork testing, pavement design and materials evaluations (soil, sand, gravel, aggregate and concrete). CONSULTATION AND REVIEW OF GEOTECHNICAL REPORTS: PSE's technical experience in the geological and geotechnical engineering practices in California enables the firm to review reports and investigations prepared by other consulting firms to verify compliance with applicable governmental Codes, project specifications and accepted geotechnical practices.