Our expert team at In Situ Site Investigation offer a range of rapid screening tools designed to identify, map, and model contamination as quickly and as cost-effectively as possible.
At In Situ Site Investigation, all tooling is compatible with our CPT (Cone Penetration Testing) rigs, allowing for quick deployment to site.
Comprehensive Environmental Services
Our professional team can quickly identify and map source zones, transport areas, plumes, and mass storage areas and adjust the site investigation immediately as data is collected and processed in real time.
At In Situ Site Investigation, we have a range of cutting-edge tools available to aid in our quick and efficient testing. This includes the following:
MEMBRANE INTERFACE PROBE (MIP)
The MIP (Membrane Interface Probe) is a logging tool that measures volatile hydrocarbon and solvent contamination in conjunction with soil electrical conductance and permeability.
An inert carrier gas is inserted behind a heated membrane in the probe, delivering it to a series of detectors at the surface.
The detectors each respond to different analyte properties which allows the MIP operator to discern the contaminant to its family group, as well as providing the ability to map out the contaminant plume.
HYDRAULIC PROFILING TOOL (HPT)
The HPT (Hydraulic Profiling Tool) is a logging tool that measures the pressure required to inject a flow of water into the soil as the probe is advanced into the ground. This injection pressure log is an excellent indicator of formation permeability.
In addition to the measurement of injection pressure, the HPT can also be used to measure hydrostatic pressure under the zero-flow condition.
This allows the development of an absolute piezometric pressure profile for the log and prediction of the position of the water table. The piezometric profile can be used to calculate the corrected HPT pressure.
This data along with the flow rate can then be used to calculate an estimate of hydraulic conductivity (K) in the saturated formation.
MEMBRANE INTERFACE HYDRAULIC PROFILING TOOL (MIHPT)
The MIHPT is a cone that combines both the MIP and HPT (Membrane Interface Probe – Hydraulic Profiling Tool) which measures volatile hydrocarbon and solvent contamination along with soil electrical conductance and permeability.
Obtaining an understanding of VOC (Volatile Organic Compounds) contaminant in context with soil conductance and permeability, allows the investigator to know if the VOC contamination is:
- in a high permeability transport zone
- a moderate permeability slow advection zone
- in a low permeability storage zone
Knowing this context should aid the investigator with decisions on the proper remedial approach that should be made.
WASTAP
WASTAP is an intrusive water sampling system. It allows you to take discrete water samples at depth as long as the permeability is suitable. It is pushed into the ground to the required sample depth and then pulled back 50cm, exposing the sample filter area.
A hand pump is then used to extract the water sample from the ground into sample jars inside the CPT rig. The WASTAP is then brought back to the surface and cleaned before reusing.
OPTICAL IMAGE PROFILER (OIP)
The OIP (Optical Image Profiler) is a direct push tool used for the delineation of non-aqueous phase liquid (NAPL) hydrocarbon fuels and oils.
The OIP-UV probe is designed with UV and visible light sources which are directed out of a sapphire window, mounted on the side of the probe. As the probe is advanced into the ground, the UV light source induces fluorescence of the fuel Polycyclic Aromatic Hydrocarbons (PAHs).
This fluorescence is captured by an onboard camera which operates at 30 images per second. Images are saved throughout the advancement of the log and still photos are taken using UV, and visible light sources at each rod addition as well as at operator-chosen depths.
Expert Environmental Assessment Specialists
Established in 2008, In Situ Site Investigation provide comprehensive and rapid environmental screening services using advanced tools compatible with CPT rigs for quick and efficient deployment to site.
Our expert team can quickly identify and map source zones, transport areas, plumes, and mass storage areas with the use of our specialist tools. At In Situ Site Investigation, we use cutting-edge technology in conjunction with our years of experience and dedication to continuous improvement to provide the highest quality environmental services.
Contact us for more information about our Environmental Services