ASTM D6286/D6286M

ASTM D6286/D6286M is the ASTM standard guide for selecting drilling and direct push methods for geotechnical and environmental subsurface site characterization. It helps users compare appropriate field methods for collecting subsurface information, with attention to site conditions, project goals, and the type of data needed. As a practical reference, it supports more informed method selection, which can improve consistency, reduce field uncertainty, and help align investigation plans with technical and regulatory expectations.

Overview of ASTM D6286/D6286M

This guide provides a structured basis for choosing between drilling and direct push approaches in subsurface site characterization work. ASTM D6286/D6286M is intended for situations where geotechnical or environmental information must be gathered from below the ground surface, and the method selection can affect data quality, cost, and field efficiency. The standard is useful for evaluating how different investigation methods fit a project’s access conditions, sampling needs, and overall characterization objectives.

Common use cases of ASTM D6286/D6286M

This guide is commonly used during planning for site investigations where subsurface conditions must be understood before design, remediation, or further testing. It may support selection of drilling or direct push methods for collecting geotechnical data, environmental samples, or other site characterization information. ASTM D6286/D6286M is especially relevant when teams need a consistent way to match the investigation approach to the ground conditions, required depth, and the level of detail expected from the field program.

Benefits of using ASTM D6286/D6286M

Using ASTM D6286/D6286M can help improve decision-making by giving project teams a recognized framework for comparing subsurface investigation methods. It supports more consistent planning, which can aid procurement, contractor coordination, and technical review. The guide may also help reduce risk by encouraging the selection of methods that are better suited to the site and the information required. For organizations working to maintain compliance and quality control, it provides a practical reference for method selection.

• Method selection for subsurface characterization
• Drilling and direct push comparison
• Geotechnical and environmental applications
• Field planning and investigation consistency
• Support for quality-focused project decisions