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Environmental Sampling Systems
Type:
Dual Tube (DT325 & DT21) Sampling Systems
Features:
- Soil sampling inside a cased hole
- Causes less disturbance to the natural formation
- Sample retrieved in clear disposable PVC liner
- Sample size:
- DT325 is 2” diameter in a 4’ length
- DT21 is 1.25” diameter in a 4’ length length
- Set monitoring well inside outer casing after collecting soil cores
- Set PVC monitoring wells, including pre-packed well screens
- Sample all soil types from unconsolidated formations
- Sample from a discrete depth
- Sample both saturated and unsaturated zones
- Multiple interval sampling
- Used for slug testing
- Used for groundwater profiling
Benefits:
- Cased hole prevents caving of borehole and cross contamination
- Perform Bottom Up grouting while extracting outer casing
- No soil cuttings to dispose of (save $$)
Field Facts:
- Sampling depths in Ontario range from 0-60’
- Sediment sampling performed
- Can also perform discreet soil sampling with the Dual Tube (DT325 & DT21) sampling systems
- Canadian and US regulatory agencies recommend this sampling method
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