Geotechnical Field Exploration – Hand Augering & Post-Hole Drilling

The contract pertains to geotechnical field exploration activities at trench site T-15 involving the use of hand augers and post-hole drilling to evaluate potential tectonic impacts on dam safety. The work is intended to gather subsurface data that will inform engineering assessments of structural integrity and seismic risk associated with the dam infrastructure. The scope is strictly focused on field data collection using manual drilling methods, ensuring minimal environmental disruption while obtaining critical soil and subsurface layer information. This subcontract is issued under the NAICS code 541350, indicating it falls within engineering services, and is managed by the California Department of Water Resources. The solicitation was posted on June 4, 2026, and the work is to be performed in California, though specific location details are not provided. The project is part of broader efforts to ensure dam safety through proactive geotechnical investigation and is accessible via the CEQA Net project portal for transparency and regulatory compliance.