Specializing in geological, geotechnical, environmental, and dam services
With 35 years of combined geologic experience, Clear Stone Geo has the knowledge and expertise to take on complex geological, geotechnical, and environmental projects. The practice focuses on collaborative, forward-thinking solutions to deliver efficient and cost-effective outcomes. It values communication and transparency, with working owners offering specialized services across the Pacific Northwest and the United States.
Clear Stone Geo provides comprehensive dam and hydroelectric infrastructure support, utilizing specialized techniques to inspect, clean, and rehabilitate critical monitoring and drainage networks.
Video and visual inspection of dam drains to evaluate structural conditions and identify blockages.
Hydro jetting services using pressures from 5,000 to 20,000 psi to clear biofouling, mineralization, and other debris from foundation and body drains.
Installing and monitoring critical instrumentation to evaluate uplift pressures and seepage conditions within and around dam structures.
Restoring piezometer performance using graduated high-pressure water jetting (1,500 to 20,000 psi) paired with pre- and post-slug testing to improve response times.
The practice delivers expert subsurface investigation, geological mapping, and construction oversight to ensure engineering projects are safely grounded.
Non-destructive subsurface imaging techniques, including seismic refraction, seismic reflection, sonic echo, and electrical resistivity arrays, to locate bedrock, assess rippability, and find groundwater.
Managing, reviewing, and supervising the installation of various foundation types to ensure compliance with geotechnical designs and project specifications.
Managing and supervising drilling programs from commencement to completion, ensuring safe and timely execution.
Creating comprehensive, state-of-the-art geological maps and GIS databases to document structural and lithological features.
Providing full-service site evaluations, sampling, and monitoring infrastructure to assist with regulatory compliance and environmental diligence.
Executing varied groundwater and surface water sampling protocols to deliver analytical analysis and site condition reports.
Obtaining clean, undisturbed soil samples in partnership with certified drilling and laboratory partners to support environmental assessments.
Designing and overseeing monitoring well construction alongside advanced CCTV inspections utilizing depth counters and real-time viewing.
Conducting rigorous Phase I Environmental Site Assessments for developed or planned developments, completed by registered geologists.
Hydroelectric · Water Resources · Federal
Noxon Rapids Dam · Hydroelectric
Successfully cleared and cleaned blockages in vertical body and foundation drains within the Noxon Rapids Dam, lowering concrete/rock interface pressures by 15% using advanced hydro jetting technology.
Cabinet Gorge Dam · Hydroelectric
Cleaned and rehabilitated piezometer wells at Cabinet Gorge Dam utilizing custom-made, non-destructive hydro jetting equipment, drastically improving reading accuracy and well response times.
Seneca Falls Dam, New York · Hydroelectric
Completed a geophysical survey utilizing advanced seismic and ground-penetrating radar (GPR) methods to map and identify potential subsurface seepage paths at the Seneca Falls Dam.
Piedmont Dam, South Carolina · Water Resources
Identified and mapped historical buried rubble piles and older seepage pathways at the Piedmont Dam utilizing non-destructive ground-penetrating radar (GPR) and seismic refraction techniques.