Groundwater Profiler
Depth-discrete groundwater sampling with uphole HPT pressure profiling. Collect lab-quality water samples at specific depth intervals while continuously characterizing subsurface permeability.
When to use the Groundwater Profiler
How it works
Targeted sampling guided by real-time permeability data
As the 1.75-inch probe advances, the uphole HPT system continuously measures injection pressure, revealing permeable zones where groundwater flows and tight formations that confine it. When the operator identifies a target zone, they stop advancing and collect a discrete groundwater sample from that specific depth. Samples are sent to a certified laboratory for quantitative analysis of any dissolved-phase analyte.
What you get
Discrete Groundwater Samples
Depth-discrete water samples collected at specific intervals for laboratory analysis. Can be analyzed for any dissolved-phase analyte: VOCs, SVOCs, metals, 1,4-dioxane, PFAS, and more.
HPT Pressureuphole, PSI
Continuous relative permeability profile measured at the surface. Low pressure indicates permeable zones (sands, gravels); high pressure indicates tight formations (clays, silts). Used to guide sampling decisions in real time.
Best paired with the HPT probe
The GWP can be used alone. Uphole HPT pressures identify permeable intervals for targeted sampling. But it is best paired with the HPT probe for full permeability profiling (HPT pressure + EC lithology), or with OIHPT/MIHPT for contaminant screening before sampling. Run screening logs first to identify the zones that matter, then use the GWP to collect targeted samples, minimizing laboratory costs while maximizing data quality.
Need lab-confirmed concentrations?
The Groundwater Profiler bridges the gap between screening data and regulatory-grade laboratory analysis. Contact us to add discrete sampling to your investigation program.