Our team

Bob’s decision to take geology as an elective science course at Pasadena City College (PCC) was influenced by a neighbor who taught there and returned from weekend field trips to the desert with great stories and photographs. Geology classes at PCC taught by two of the best professors Bob had in college sealed the deal. Bob transferred to UCLA where he completed a BS in Geology in 1979 and MS in Engineering in 1982. Bob worked as a geologist and engineer at Kovacs-Byer until leaving in 1988 to join Dave Grover as the Principal Engineer at Grover-Hollingsworth and Associates.

Bob’s expertise in geotechnical engineering has been applied to complicated hillside projects, landslide restoration and evaluation of damaged properties. Bob reviews all of the geotechnical reports prepared by the staff. Bob also provides expert services for attorneys and insurance companies. When not working, Bob enjoys skiing, fishing, gardening and attending basketball and football games.

Professional Staff

Mr. Byrne has over 23 years of experience practicing engineering geology in Southern California and has worked at Grover Hollingsworth & Associates since¬ 1988. He has a Bachelors of Science in Geology from California State University Los Angeles. He is a licensed professional Geologist and a Certified Engineering Geologist since 1995. Mr. Byrne has had a passion for rocks since his younger days in Yosemite scaling El Capitan. He is responsible for performing field explorations and preparing reports for complex residential developments, distressed properties, and landslide stabilization projects. Mr. Byrne also performs prior-to-purchase evaluations for real estate transactions.

Mr. Kofoed is a state licensed engineering geologist who has been with Grover-Hollingsworth since 1988. Mr. Kofoed received his Bachelor of Science degree in geology from Cal State Northridge in 1988. Mr. Kofoed performs site exploration, geologic mapping and prepares geologic reports. He also performs site observation during construction of residential and commercial projects.

Mr. Daugherty is a state licensed professional engineer and geologist who has been with Grover-Hollingsworth since 2001. Danny received a Bachelor of Science in geological sciences from the University of California at Santa Barbara in December of 2000. He continued his education by receiving a Master of Science in civil engineering (geotechnical) from the University of California at Los Angeles in September of 2007. Mr. Daugherty’s primary duties at Grover-Hollingsworth are conducting subsurface exploration, performing geologic mapping, and preparing geologic and soils engineering reports for new residential construction.

Mr. Little is a licensed Professional Geologist in the State of California. Mr. Little graduated from California Lutheran University with a Bachelor of Science in Geology in 2002. Jared has worked full time for Grover-Hollingsworth and Associates as a Staff Geologist since June of 2002. He was also employed here as an intern for one summer during his college years. Mr. Little currently researches site information, performs exploration and prepares geology and soils reports for various projects in hillsides and valley projects. He also performs site observations during construction. His outside interests include hiking, camping, snowboarding, basketball and reading.

Mr. Watry is a registered engineering geologist and geotechnical engineer with over 30 years of professional experience, who has been with Grover-Hollingsworth since 1992. Mr. Watry received a B.S. in geology from UCLA, where he and Bob Hollingsworth were in the same class, and an M.S. in Geology from CSULA. Mr. Watry is a member of AEG, GSA, and ASCE and has published peer-reviewed papers in GSA and ASCE journals. Mr. Watry has been involved in the evaluation and stabilization of numerous large landslides in California. He also specializes in foundation design for hillside and beachfront properties and shoring and basement design for complex residential and commercial sites. Other duties include forensic work and expert witness support.

Mr. Buzga has worked full time for Grover-Hollingsworth & Associates as a Staff Geologist. Mr. Buzga currently researches site information, conducts subsurface exploration, performs geologic mapping and prepares geologic and soils engineering reports for various hillside and valley projects. He also performs site observations during construction of residential projects.

Mr. Rosner has worked full time for Grover-Hollingsworth & Associates as a Staff Geologist. Mr. Rosner currently researches site information, conducts subsurface exploration, performs geologic mapping and prepares geologic and soils engineering reports for various hillside and valley projects. He also performs site observations during construction of residential projects.

Mr. Medina has worked full time for Grover-Hollingsworth & Associates as a Staff Geologist since 2025. Mr. Medina currently researches site information, conducts subsurface exploration, performs geologic mapping and prepares geologic and soils engineering reports for various hillside and valley projects. He also performs site observations during construction of residential projects.

Office Staff

Technical Staff

Field Technician

Edward performs compaction testing and site observations during the construction of our many projects.

Field Technician

Johnny performs compaction testing and site observations during the construction of our many projects.