1. sand clay Hydraulic Capture clay piezometric surface

2. sand clay Hydraulic Capture clay

3. sand clay Hydraulic Capture clay

4. sand clay Hydraulic Capture clay

5. sand clay Hydraulic Capture clay

6. Hydraulic Capture – Map View

12. Takes advantage of natural groundwater flow –Draws contaminant toward the well faster than it would have arrived under natural gradient flow. –Minimizes the volume of water that needs to be pumped and treated. –Does not recover downgradient contamination. –Prevents downstream migration of contamination as long as pumping continues.

13. What happens if the plume is too wide?

19. Capture zone width can be increased by: –Pumping at a faster rate –Installation of more than one well 3000 2000 1000 0 -500 1500 1000 500 0 500 1000 1500 meters Double Well Capture Zone Type Curves 400 800 1200 1600 2000 Flow