Meet the Geoengineering Team | Expert Engineers & Consultants

Education

University of California, Berkeley – Master of Science in Civil Engineering

B.S. in Civil Engineering, University of California, Davis

Junhan Li

Junhan Li is a Staff Engineer at Geo-Engineering Solutions, Inc., with over two years of hands-on experience in geotechnical engineering.

He is actively involved in geotechnical site investigations, including drilling, test pits, and site reconnaissance. He regularly prepares technical documentation, including engineering reports, field logs, and visual aids that support design and construction teams.

Registrations:

Engineer-In-Training (Credential ID: 178249)
Nuclear Gauge

Notable Projects:

Notable Project Experience:
1007 Blossom Hill Road | San Jose
1766 El Camino Real
18960 Monterey Road | Morgan Hill
33589 Central Ave | Union City
85 Cleaveland & Crescent
950 W Julian Street | San Jose
Bay Tech Charter School
Elmwood
Gilroy Prep School
John Swett Elementary School
Lucerne Elementary School
Morello Park Elementary School
Parlin Oaks
San Leandro Adult School
San Leandro High School Gym
San Leandro Unified School District New District Office
Southgate Elementary School
Sundale Union Elementary School
Voices Charter School
Whole Foods | Los Gatos

Certifications

Nuclear Gauge
ACI Certified Level I Concrete Field

Johnathon Thacker

Field Technician, Geo-Engineering Solutions, Inc.

Johnathon Thacker is a Field Technician at Geo-Engineering Solutions, Inc., with over 6 years of experience in materials testing in both laboratory and field settings across California and Arizona.

His expertise encompasses earthwork and asphalt projects, ensuring high standards of quality and compliance.

Notable Projects:

2850 Hannah St. | Oakland
Hollis St. Development |Oakland
Frito Lay of Modesto |Modesto
San Leandro Unified School District , San Leandro
- Bancroft Middle School
- Garfield Elementary School
- Jefferson Elementary School
- Roosevelt Elementary School
- San Leandro High School
Brentwood Union School District
- Lone Tree Elementary School
- Edna Hill Middle School
Carquinez Middle School
Kato Road Commercial Building, Fremont, CA
Dublin Station Residential Development, Dublin, CA

Education

Bachelor of Science

San Diego State University – San Diego, CA- 1982

Russell Thacker, GE, CEG

Senior Technician

Russell Thacker is a Senior Engineering Technician at Geo-Engineering Solutions, Inc., with over 35 years of experience in materials testing services for asphalt and earthwork projects across California. His extensive background ensures exceptional problem-solving capabilities and precision in project execution. As our most experienced engineering technician, we rely on Russ to be a mentor to our younger engineers, geologists and technicians. Russ is adept at teaching contractors as well as young professionals about the practical side of earthwork construction and testing.

In his spare time, Russ contributes back to the community by coaching softball in the East Bay.

Affiliations:

Soils CTM 125, 231
Concrete CTM 521, 523, 533, 539, 540, 556, 557
Asphalt CTM 125, 375
Lab CTM 201, 202, 205, 206, 207, 216, 217
ACI Concrete Field Level I

Notable Projects:

IN-N-Out Distribution Center Chino, CA
Big-Lots Distribution Center Apple Valley, CA
Marina High School Athletic Field, Marina CA
San Leandro Unified School District, San Leandro CA
San Leandro High School
Lincoln High School
Garfield Elementary School
Washington Elementary School
Madison Elementary School
Piedmont High School Theater and STEM Building
Los Abuelos Elementary School Marina, CA
Gallo Glass Facilities, Modesto, CA
Frito Lay Plant Expansion, Modesto, CA
Martinez Unified School District, Martinez, CA
John Muir Elementary School
Las Juntas Elementary School
John Swett Elementary School

Certifications

APNGA Nuclear Gauge
OSHA 10
ACI Level 1 Certification

Dylan Lynch

Field Technician, Geo-Engineering Solutions, Inc

Dylan Lynch is a Field Technician at Geo-Engineering Solutions, Inc., bringing over two years of experience in materials testing within laboratory and field settings across California. His background in construction, along with his experience utilizing a wide range of tools and construction equipment, provides him with a strong practical foundation to support earthwork and asphalt projects. Dylan’s diverse skill set—including problem-solving, effective communication, and interpersonal abilities—enables him to collaborate seamlessly with teams and clients, ensuring the successful execution of various construction initiatives.

Dylan leverages his hands-on experience and technical skills to support the company’s mission of delivering cost-effective, high-quality solutions. His work directly contributes to providing superior services and finding innovative solutions that meet both the technical and fiscal needs of each project.

Outside of work, Dylan enjoys spending time with friends and family and has a passion for sports.

Notable Projects:

85 Cleaveland and Crescent | Pleasant Hill, California
Piedmont High School | Piedmont, California
Lone Tree Elementary School | Brentwood, California
Achieve Academy | Oakland, California
Elmwood | Saratoga, California
Voices Charter School | Morgan Hill, California
Parlin Oaks | Galt, California
2525 S Airport | Stockton, California
San Leandro New District Office |San Leandro, California
San Leandro High School Gym |San Leandro, California

Education

M.S. in Civil Engineering, California Polytechnic State University of San Luis Obispo, 2015

B.S. in Civil Engineering, California Polytechnic State University of San Luis Obispo, 2014

Colin Frost, PE

Project Engineer, Geo-Engineering Solutions, Inc.

As a project engineer at Geo-Engineering Solutions, Colin has gained experience on a variety of project types, such as public schools, residential and industrial developments, athletic field improvements, and photovoltaic structures. His work experience includes construction observation, leading geotechnical investigations, performing and managing laboratory testing, engineering analysis, and geotechnical report writing. Colin is proficient in various engineering calculations, including consolidation settlement, liquefaction analysis, shallow and deep foundation capacity, and ground motion hazard analysis.

Outside of work, Colin enjoys spending time with family and playing music with friends.

Registrations:

Professional Civil Engineer, State of California, 87575

Notable Projects:

Coors G150 Project, Golden Colorado
Lamb Weston Potato Production Facility, American Falls Idaho
Piedmont High School, Piedmont, California
San Leandro High School, San Leandro, California
John Muir Elementary School, Martinez, California
Carquinez Middle School, Crocket, California
Revery Apartments, Burlingame, California
View at San Bruno Apartments, San Bruno, California
Sand Creek Park, Brentwood, California
Butte Fire Litigation Consulting, Calaveras County, California
Over 300 Solar Developments throughout California

Education

AAS Office Administration 2013
Heald College

Christine So

Office Manager, Geo-Engineering Solutions, Inc

As Office Manager at Geo-Engineering Solutions,Christine is dedicated to ensuring the smooth, efficient operation of Geo-Engineering Solutions, so the team of engineers, geologists, and field teams can focus on delivering high-quality geotechnical solutions. With a strong background in office administration, Christine plays a pivotal role in supporting both the technical and strategic sides of the company.

Christine’s work spans a broad range of responsibilities—from managing day-to-day operations, HR, and accounting. She works closely with project managers and technical teams to ensure they have the administrative support and resources they need to stay on track. Christine takes pride in creating a structured, responsive, and professional office environment where collaboration and efficiency can thrive. She is passionate about fostering a collaborative, well-organized workplace where communication flows freely and the team can thrive in tackling the complex challenges of geotechnical engineering.

Outside of work, Christine enjoys discovering new restaurants and spending time with friends and family.

Education

B.S. in Civil Engineering, University of California Berkeley, 1977

M.S. in Civil Engineering, University of California, Berkeley, 1978

M.Eng. in Civil Engineering, University of California, Berkeley, 1979

Corey T. Dare, PE, GE

Principal Engineer, Geo-Engineering Solutions, Inc

As a Principal Geotechnical Engineer at Geo-Engineering Solutions, Mr. Dare brings over 40 years of practical experience providing geotechnical engineering services to both public and private sector clients throughout the San Francisco Bay Area and Northern California He has a wide range of project experience from the pre-design through construction phases of projects for project types including K-12 educational facilities, public and private colleges and universities, hospitals and medical office buildings, government, commercial, residential and mixed-use structures, industrial facilities, road improvements, creek and trail restoration, and water and wastewater facilities.

Mr. Dare has extensive experience dealing with complex geotechnical challengessuch as landslide (including slope stability) evaluation and remediation, identification of and construction on liquefiable and expansive soils, soft soil remediation, and settlement mitigation. He spent many years managing the geotechnical and materials testing construction services groups. He is an experienced geotechnical peer reviewer for Bay Area Cities and Towns including Oakland, Orinda, Moraga, Piedmont, Belmont, and Martinez, and Counties such as Alameda and Monterey.

Registrations:

Professional Civil Engineer, State of California, 32948
Geotechnical Engineer, State of California #2013

Affiliations:

American Society of Civil Engineers
ASCE Construction Institute, San Francisco Section – Treasurer
Coalition for Adequate Student Housing (CASH)
East Bay Municipal Engineers – Past Chairman

Notable Projects:

Chabot College Library Building, Hayward, California
Braddock Center for Science and Innovation, California State University East Bay, Hayward, California
Miwok Recreation Center and Jonas Center, College of Marin, Indian Valley Campus, Novato, California
Ohlone College Student Support Services Center, Fremont, California
Kemble-Chavez Elementary School, Sacramento, CaliforniaNew Multi-Purpose Buildings at Five School Sites, San Mateo, California
New Eden Hospital, Sutter Health, Castro Valley, California, California
Marin General Hospital Patient Tower, Greenbrae, California
John Muir Medical Center Patient Tower, Concord, California
Kaiser Sacramento and South Sacramento Medical Center ED Expansions, Sacramento, California
Kaiser MOB and Parking Structure, Fresno, California
US Coast Guard NSC Homeport Buildout, Sand Island, Honolulu, Hawaii
MCB Kaneohe Runway and Hangar Improvements, Kaneohe, Oahu, Hawaii
12th Street Reconstruction, Lake Merritt, Oakland, California

Education

B.S. in Geology, University of California, Davis, 2023

Kyle Mui

Staff Geologist

As a graduate engineer in geotechnical engineering, Kyle is contributing to solutions that support our evolving geotechnical needs. His background in geology stems from a deep appreciation for the Earth’s natural beauty. With a strong interest in Earth sciences and a passion for understanding how the planet’s history influences the built environment, Kyle is eager to contribute to meaningful, forward-looking projects that address the needs of a growing and changing world.

When he’s not exploring the world of geology, Kyle enjoys video games, collecting trading cards, and spending time with his cats.

Education

M.S. in Civil/Geo-Environmental Engineering, University of Massachusetts,1997

B.S. in Civil/Structural Engineering, University of Massachusetts, 1991

A.S. in Architecture, University of Fine Arts., Lebanon, 1984

Certificate in Leadership in Environmental Sustainability Management, UC Berkeley, 2012

Nicolas B. Haddad, PE

Senior Engineer, Geo-Engineering Solutions

Nicolas has over 34 years of experience in providing a unique combination of Environmental and Geotechnical engineering consulting services to development projects.

His extensive consulting experience includes addressing complex environmental issues, providing team leadership, fostering strong client relationships, and offering strategic guidance in risk management and project evaluation. He has supported a wide range of development projects, spanning land planning, educational facilities, commercial buildings, and residential subdivisions, while also contributing to professional development initiatives and long-term project success.

Nicolas has hands-on experience in managing large sites impacted with hazardous materials, from the immediate response assessments and investigations to the implementation of remediation design and operation, and case closure.

He has also managed geotechnical investigations, construction testing and inspection for a variety of projects including schools, commercial and residential developments.

Registrations:

Professional Civil Engineer, State of California, 78126
California Qualified Stormwater Developer

Affiliations:

American Society of Civil Engineers
California Geotechnical Engineers Association
American Public Works Association

Notable Projects:

Frederiksen Elementary School, Dublin-Preliminary Environmental Assessment
Murray Elementary School, Dublin-Preliminary Environmental Assessment
Brentwood New School – Supplemental Environmental Site Assessment
Over 50 Environmental Phase I Site Assessments
Over 100 Solar Developments throughout California

Education

B.A. in Geology, University of California, Berkeley, 2023

Sarah Schmuck

Staff Geologist, Geo-Engineering Solutions, Inc

Sarah Schmuck is a Staff Geologist with two years of working experience in the geotechnical engineering field. Her project work focuses on borehole logging, fault trenching, and construction observation. She also has hands-on experience with project development, analyzing the mechanical properties of soils in Geo-Engineering’s soils laboratory.

Outside of work, Sarah enjoys traveling, gardening and spending time outdoors with her dogs.

Registrations:

APNGA Nuclear Gauge
OSHA 10

Affiliations:

California Geotechnical Engineering Association
Association of Engineering Geologists

Notable Projects:

College of the Redwoods – Eureka, CA
Victor Valley College – Victorville, CA
Cerro Coso Community College – Ridgecrest, CA
Gateway Seminary – Ontario, CA
Pacheco Unified School District – Pacheco, CA
Fremont Unified School District – Fremont, CA
Oceanside Unified School District – Oceanside, CA
Hesperia Parks & Recreation – Hesperia, CA
Pleasant Valley Parks & Recreation – Camarillo, CA

Education

M.S. in Civil Engineering, San Jose State University, 1994

B.A. in Geology, University of California, Berkeley, 1987

Eric J. Swenson, GE, CEG

President / CEO, Geo-Engineering Solutions, Inc

As President and founder of Geo-Engineering Solutions, I am committed to advancing the practice of geotechnical engineering by integrating a deep understanding of geology with the engineering behavior of soil and rock. I am passionate about fostering a culture of creativity and technical excellence among our engineers, geologists, and technicians, encouraging innovative approaches to complex challenges in the built environment.

With extensive experience across a wide range of complex and technically demanding projects, my portfolio includes work on deep-seated landslides, major earthen dams, high-rise developments supported by deep foundation systems, large-scale residential grading projects, soft soil remediation, liquefaction-prone sites, and active fault investigations. I bring a hands-on, practical perspective to each project, blending field expertise with rigorous engineering analysis.

Beyond my professional work, I enjoy exploring other passions, including cooking, traveling, hiking, fly fishing, and spending time with my family.

Registrations:

Professional Civil Engineer, State of California, 52841
Geotechnical Engineer, State of California #2474
Geologist, State of California #5857
Certified Engineering Geologist, State of California #1855
Professional Engineer, Texas
Civil Engineer, Arizona 70212
Professional Engineer, Wyoming 16325
Civil Engineer, Idaho 15738
Professional Engineer, Hawaii 15339
Professional Engineer, Colorado
Professional Engineer, Maryland

Affiliations:

American Society of Civil Engineers
American Council of Engineering Companies-past State Director, Past Chapter President
Coalition for Adequate Student Housing (CASH)
California Geotechnical Engineers Association – State Director/Board Officer
Association of Engineering Geologists

Notable Projects:

Coors G150 Project, Golden Colorado
Lamb Weston Potato Production Facility, American Falls Idaho
Los Vaquero Reservoir, Contra Costa County California
Piedmont High School, Piedmont, California
San Leandro High School, San Leandro, California
John Muir Elementary School, Martinez, California
Carquinez Middle School, Crocket, California
Marine Corps Base Kaneohe, Hawaii
Sand Harbor Coast Guard Station, Honolulu, Hawaii
Revery Apartments, Burlingame, California
View at San Bruno Apartments, San Bruno, California
Sand Creek Park, Brentwood, California
Northeast Ridge Community, Brisbane, California
Symphony Tower, Honolulu, Hawaii
Riverside Community Hospital, Riverside, California
Butte Fire Litigation Consulting, Calaveras County, California
Over 300 Solar Developments throughout California

Education:

B.S. in Civil Engineering, University of California, Davis

Morgan Teng, EIT

Senior Staff Engineer, Geo-Engineering Solutions, Inc.

Morgan Teng is a dedicated Senior Staff Engineer at Geo-Engineering Solutions, Inc., with over 2 years of experience in the geotechnical engineering field. He plays a vital role in supporting the geotechnical team with various testing and analysis activities.

Certificates:

Nuclear Gauge

OSHA 10

Fundamentals of Engineering

Professional Experience:

2022 – Present:

Staff Geologist, Geo-Engineering Solutions, Inc.

2019:Environmental and Geotechnical Research

Research Assistant at UC Davis with Professor Veronica Morales

Research Assistant at UC Davis with Professor Alejandro Martinez

Notable Project Experience:

85 Cleaveland | Pleasant Hill, California
John Swett Elementary School |Martinez, California
Lone Tree Elementary School | Brentwood, California
Parlin Oaks | Galt, California
The Villages on Isleton | Isleton, California
Baywood Entry Project | Lafayette, California
Frederiksen Elementary School | Dublin, California
777 Saratoga Road | Sunnyvale, California
Kato Road |Fremont, California

Morgan Teng’s commitment to excellence and attention to detail make him a valuable asset to the Geo-Engineering Solutions team, ensuring thorough testing and analysis for successful project outcomes.

Team

Eric J. Swenson, GE, CEG

Nicolas Haddad, PE

Colin Frost, PE

Corey T. Dare, PE, GE

Russell Thacker

Johnathon Thacker

Chance Frost

Dylan Lynch

Christine So

Kyle Mui

Sarah Schmuck

Junhan Li