MIP (Membrane Interface Probe)
The Membrane Interface Probe (MIP) is an advanced site investigation tool developed for the logging of total volatile organic compounds (VOCs) while classifying soil lithology in the subsurface. As the MIP is driven to depth using any Geoprobe soil probing equipment, a permeable membrane on the side of the probe is heated at desired intervals to volatize organic compounds. The VOC's permeate the membrane and are delivered to the surface using an internal carrier gas. At the surface, total VOC readings are provided by using a single detector or a series of detectors, such as a PID, FID or ECD. The real time log also provides a depth/speed graph, an electrical conductivity log of the formation (lithology), and a temperature log of the heated sensor. The MIP log provides semi quantitative/qualitative information on contaminant levels and lets the investigator collect targeted samples from contaminated zones to define specific analytes and precise concentrations.
Benefits
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MIP System provides simultaneous logging of total VOC readings and soil lithology.
Detects volatile contaminants in soil while driven to depth.
Detects dissolved hydrocarbons down to 1 ppm.
DISC System provides independent and rapid logging of soil lithology.
Both systems operate in the vadose zone and in saturated zones.
Both systems eliminate all soil cuttings and waste.
Both systems dramatically reduce the time and cost of site
MIP System provides simultaneous logging of total VOC readings and characterizations.
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MIP Standard Operating Procedure
MIP Services Page
MIP with GC/MS
CalEPA Evaluation Report: Hapsite GCMS
