Earth Focus Geological Services, Inc. is a small professional engineering geology consulting company founded in 1995. Based in Fremont's historic Niles District, we serve clients across the greater San Francisco Bay Area and throughout the state, consistently striving to exceed the current standard of care for the engineering geology profession in California. Specialties include geologic hazards evaluation, earthquake fault and seismic hazards evaluations, and landslide investigation. In northern California, our experience with earthquake fault investigations encompasses the Hayward, San Andreas, Calaveras, Berrocal, Greenville, Green Valley, and West Napa faults. In southern California, it includes the Newport-Inglewood, Malibu Coast, Whittier, Sierra Madre, and San Jacinto faults. We are also one of the few firms in northern California that offers down-hole visual logging of large-diameter borings for landslide investigations. Our clients range from individual homeowners to other expert consultants small and large.
Patrick Drumm is the founder and president of Earth Focus Geological Services. He has more than 30 years of experience providing engineering geologic consulting for construction and land development projects ranging from single-family additions to mass grading for new subdivisions, as well as exploratory services for major infrastructure projects. In demand as an expert witness, Pat also teaches part-time at CSU East Bay. He is a California-licensed Professional Geologist (#5744), Certified Engineering Geologist (#1916), and Certified Hydrogeologist (#573).