Business Details
38 Years
experience
Trusted Geotechnical Engineering Services in Riverside, CA
Since 1988, our firm has dedicated itself to delivering geotechnical, geologic, and environmental consulting services with a focus on client collaboration and technical excellence. Our team of licensed engineers and geologists employs proven methodologies to address site-specific challenges, ensuring projects meet regulatory standards and client expectations. We prioritize open communication to build long-term relationships, integrating client goals with site conditions during every project phase. With decades of combined experience, we apply both traditional and innovative problem-solving approaches to geotechnical challenges, from foundation design to seismic hazard analysis. Our commitment to integrity guides all operations, fostering trust with clients, employees, and vendors. We measure success through client satisfaction and the long-term stability of our firm, which is reflected in our employee ownership model.Our professionals actively participate in technical organizations to stay at the forefront of industry advancements, ensuring our clients receive cutting-edge solutions. We emphasize employee development and professional growth, recognizing that our team's expertise directly impacts project outcomes. Our environmental services team has conducted hundreds of site assessments, helping clients navigate complex regulatory requirements. Through rigorous quality control testing and inspection services, we maintain high standards during construction phases. This comprehensive approach has established us as a trusted partner for industrial, municipal, and private sector clients seeking reliable geotechnical expertise.
Services
Geotechnical Investigations
Environmental Site Assessments
Construction Testing
Soil Engineering
Seismic Hazard Analysis
Foundation Investigations
Groundwater Monitoring
Underground Storage Tank Assessments
Slope Stability Analysis
Laboratory Testing
Details
- Year established: 1988
Highlights and features
- We offer over 40 years of combined experience in geotechnical engineering.
- Our team uses proven and innovative problem-solving methodologies.
- We operate with integrity and transparency in all client interactions.
- Our ESOP structure ensures employee commitment to quality outcomes.
- We provide free consultations to understand client project requirements.
Associations and certifications
- Caltrans
- American Concrete Institute (ACI)
Services
Geotechnical Investigations
Our geotechnical investigations evaluate subsurface conditions to inform foundation design and construction planning. Using drilling and sampling techniques, we assess soil properties and potential hazards. This data supports engineering decisions for commercial, industrial, and residential developments.
Environmental Site Assessments
We conduct Phase I and II environmental assessments to identify hazardous materials on commercial properties. Our team performs soil and groundwater sampling to meet regulatory requirements for real estate transactions. This includes underground storage tank evaluations and remediation planning.
Construction Testing
Our certified technicians perform field and laboratory testing during construction projects. Services include compaction testing, concrete sampling, and materials analysis. We ensure compliance with Caltrans and ACI standards through specialized inspection programs.
Seismic Hazard Analysis
We evaluate seismic risks through fault investigations and ground motion analysis. Our assessments identify liquefaction potential and surface rupture hazards. This information guides mitigation strategies for infrastructure and building projects in seismically active regions.
Slope Stability Analysis
Our engineers analyze slope conditions to prevent instability issues in hillside developments. Using subsurface data and geophysical surveys, we design stabilization measures for residential, commercial, and public works projects in challenging terrain.
People
John P. Leuer
President, Civil Engineer, Geotechnical Engineer
With over 40 years of experience, John Leuer specializes in soil and foundation engineering for large-scale developments. He holds degrees from Cal State University and is licensed in California and Nevada. He teaches soils engineering courses and contributes to professional organizations.
Andrew A. Tardie
Vice President, Professional Geologist
Andrew Tardie manages geotechnical projects across California with expertise in seismic hazard analysis and subsurface investigations. He holds a geology degree from CSU San Bernardino and is certified in California. He contributes to industry associations like AEG.
Mathew L. Hunt
Environmental Scientist
Mathew Hunt has 16 years of environmental assessment experience, conducting over 200 Phase I ESA reports. He specializes in hazardous waste sampling and groundwater monitoring. He holds advanced degrees in soil science from Cal Poly and UC Riverside.
Cristina Carranza
Staff Geologist
Cristina Carranza performs geological fieldwork and laboratory analysis for environmental and construction projects. She contributes to site characterization studies and regulatory compliance reporting.
Tony Guillen
Testing Scheduler
Tony Guillen coordinates construction testing services and field technician assignments. He ensures timely execution of quality control programs for infrastructure projects.
Questions
What geotechnical services do you offer?
We provide site investigations, foundation analysis, slope stability assessments, and construction monitoring services for residential, commercial, and public works projects.
Do you handle environmental assessments?
Yes, we conduct Phase I and II environmental site assessments, groundwater monitoring, and underground storage tank evaluations to meet regulatory requirements.
Are your technicians certified?
All field and laboratory technicians hold Caltrans and American Concrete Institute certifications for construction materials testing.
How do you handle seismic hazards?
We perform seismic hazard analyses that include fault investigations, liquefaction evaluations, and ground motion assessments to guide project design.
What areas do you serve?
We primarily serve Riverside County and the Inland Empire region, with project experience across southern California.
