I recently co-authored a study in the journal Environmental Forensics detailing a water forensics investigation of Bonanza Spring, the largest spring in the southeastern Mojave Desert. The desert ecosystem is highly dependent on these water resources, yet they remain poorly understood. With the help of two colleagues, we performed a series of geotechnical evaluations, including maps of spring flow, groundwater levels, as well as chemistry and isotope experiments on collected samples. While other springs in the area are locally sourced, the Bonanza Spring has a regional source that leads all the way to basin fill aquifer systems. This delicate environmental ecosystem has important implications for any activities or developments that affect the Bonanza Springs.
To read the full Environmental Forensics publication, click here.

September 29, 2025
Matthew Marcus, Managing Director of Partner Engineering and Science Inc., recently presented at the Construction Lender Round Table (CLRM) to 230 construction lenders nationwide. His presentation was well-received, sparking a wave of follow-up questions from the construction lenders. In this interview, Mr. Marcus provides in-depth insights and practical tips for mitigating geotechnical risks in construction lending.

June 02, 2025
Matthew Marcus, Managing Director at Partner Engineering and Science Inc., was recently featured as a guest speaker by The Ground Investigation Podcast. He shares his extensive experience in geotechnical engineering, seismic resilience, and project management.

October 10, 2024
Matthew Marcus, PE, GE, PG, Managing Director at Partner Engineering and Science, Inc., discusses three ways Geotechnical consultants offer services that go beyond evaluating the soil conditions beneath planned structures at the beginning of design.




