Environmental Investigations

Whitney & Associates, now IMEG provides environmental investigations and monitoring well installations for various consultants throughout the State of Illinois.  Our firm maintains a fleet of rotary auger drill rigs and many sizes of hollow stem augers for varying scopes of environmental investigations and monitoring well installations.

We also maintain a full inventory of monitoring well installation supplies for rapid response time.  To provide flexibility in the scope of work, an enclosed cargo trailer is typically utilized for transportation of the monitoring well supplies as well as self-contained, decontamination and clean up equipment.

A skid-steer mounted, GeoProbe sampling rig compliments our conventional, rotary auger drill rig equipment for minimal disturbance sampling.  The GeoProbe sampling equipment may also be utilized in those areas of limited height and/or width restrictions as well as difficult access locations.

Our field investigation services include, but are not limited to:

  • Continuous and Intermittent Sampling
  • 2.75, 3.25, 4.25, and 6.25 Inch (Inside Diameter)  Hollow Stem Augers
  • Schedule 40 PVC Well Screen and Riser
  • Stainless Steel 304 and 316 Well Screen and Riser
  • Auger and Sampling Equipment Decontamination
  • Flushmount and Upright Protective Casings
  • Monitoring Well Development
  • Slug Tests

Our in-house laboratory can also perform physical tests and analysis of the environmental samples including, but not limited to:

  • Atterberg limits – ASTM D2216, D4318
  • Bulk density
  • Grain Size Analysis – ASTM D422, D1144
  • Hydraulic Conductivity (Permeability) – ASTM D2434, D5084
  • Moisture content – ASTM D2216
  • Soil pH – ASTM D4972
  • Soil classification – ASTM D2487, D2488
  • Specific Gravity of Soil Solids – ASTM D854