​Direct Push Drilling Services

Advanced Subsurface Investigation & In-Situ Remediation
PINTER offers direct push investigation and remediation services using a specialized direct push drill rig. This equipment enables rapid, cost-effective, and low-disturbance solutions for environmental, geotechnical, and remediation projects.
 
Key Advantages

• Minimal site disturbance
• No auger cuttings to dispose
• Small footprint for limited access areas
• Rapid data acquisition and sample turnaround
• Cost-effective solution for targeted investigations and injections

 
Service Areas
Environmental Site Investigations

• Electrical Conductivity (EC) Logging: Identify salt and fertilizer contamination, map stratigraphy in real-time, and guide well placement.
• Soil Core Sampling: Collect discrete or continuous cores with minimal cross-contamination for screening and lab analysis.
• Groundwater Sampling (No Wells Needed): Collect groundwater samples using SP16 stainless steel screen system without permanent well installation.

 
Environmental Remediation & Monitoring

• In-Situ Injection of Amendments: Inject compounds such as oxygen release agents using high-pressure grout pump for subsurface remediation.
• Monitoring Well Installation: Install small-diameter environmental monitoring wells.
• Salt Impact Assessment: Use EC probe to investigate salt contamination across impacted areas.

 
Geotechnical Investigations

• Cone Penetrometer Testing (CPTu): Determine stratigraphy and measure geotechnical parameters including tip resistance, sleeve friction, pore pressure, and hydraulic conductivity—all in real-time with cordless data transmission.
• Piezometer Installation: Install electronic transducers, standpipes, and flush-mount piezometers for groundwater monitoring.
• Soil Sampling for Lab Testing: Obtain clean cores for grain size, Atterberg limits, and other geotechnical lab analyses.

 
Specialized Tools & Technology
Electrical Conductivity (EC) Probe

• Real-time logging of soil stratigraphy
• Detects fine vs coarse materials based on conductivity
• Identifies salt and fertilizer contamination zones
• Assists in well placement and delineating impacted zones

Soil Core Sampling Systems

• Continuous Core: 4.5 cm diameter x 1.5 m length
• Discrete Core: 2.5 cm diameter x 56 cm length
• Piston and o-ring seals prevent cross-contamination
• Ideal for field screening and lab submission

Groundwater Sampling Tool

• No monitoring well installation required
• Ideal for inaccessible locations (e.g., beneath buildings)
• Sealed with grout or bentonite upon completion

Injection Tools

• High-pressure GS-2000 pump (up to 1800 psi)
• Pressure-activated valves for precise zone targeting
• Supports both retraction and insertion injection techniques

Cordless CPTu Probe

• Transmits real-time geotechnical data without internal rods
• Measures: tip resistance, sleeve friction, pore pressure
• Defines soft zones, relative density, and more
• Ideal for dams, embankments, and stratigraphy delineation

Access & Site Sensitivity
Limited Access Capability

• Only 4.2 m overhead and 2.8 m horizontal clearance required
• Operates in:
  • Alleyways
  • Indoors
  • Beneath canopies and utilities
  • Roadway shoulders

Environmentally Sensitive Sites

• Ideal for:
  • Active industrial sites
  • Sensitive receptor areas
  • Roadside or business-front investigations
• Virtually eliminates cuttings, reducing disposal and cleanup costs