Soil remediation

1. A device for agitating a material, the device comprising:

a casing defining a passage, wherein the casing comprises an opening at a first end of the casing, wherein the passage is helical; and

a valve positioned and configured to close the opening,

wherein the casing is configured to allow rotational insertion of the casing into a material, wherein the valve is configured to allow closure of the passage when the casing is in the material, and wherein the casing is configured to be agitated when the casing is in the material.

2. The device of claim 1 , further comprising an opening at a second end of the casing.

3. The device of claim 2 , wherein the opening at the second end of the casing is in fluid communication with a reservoir.

4. The device of claim 3 , further comprising a cleaning fluid in the reservoir.

5. The device of claim 1 , wherein the valve is configured to provide a liquid tight seal for the opening.

6. The device of claim 1 , wherein the valve comprises a butterfly valve.

7. The device of claim 1 , wherein the first end of the casing is configured for insertion into a material to be agitated.

8. The device of claim 7 , wherein the first end of the casing comprises a material that is structurally rigid enough to allow the first end of the casing to bore into soil.

9. The device of claim 1 , further comprising a motor configured to rotate the casing into the material to be agitated.

10. The device of claim 1 , further comprising a cleaning fluid within at least a portion of the passage.

11. A device for agitating a material, the device comprising:

a casing defining a passage, wherein the casing comprises an opening at a first end of the casing;

a valve positioned and configured to close the opening; and

a rod, wherein the passage is wound along a length of the rod,

wherein the casing is configured to allow rotational insertion of the casing into a material, wherein the valve is configured to allow closure of the passage when the casing is in the material, and wherein the casing is configured to be agitated when the casing is in the material.

12. The device of claim 11 , further comprising an opening at a second end of the casing.

13. The device of claim 12 , wherein the opening at the second end of the casing is in fluid communication with a reservoir.

14. The device of claim 13 , further comprising a cleaning fluid in the reservoir.

15. The device of claim 11 , wherein the valve is configured to provide a liquid tight seal for the opening.

16. The device of claim 11 , wherein the valve comprises a butterfly valve.

17. The device of claim 11 , wherein the first end of the casing is configured for insertion into a material to be agitated.

18. The device of claim 17 , wherein the first end of the casing comprises a material that is structurally rigid enough to allow the first end of the casing to bore into soil.

19. The device of claim 11 , further comprising a motor configured to rotate the casing into the material to be agitated.

20. The device of claim 11 , further comprising a cleaning fluid within at least a portion of the passage.

21. A method for agitating a material, the method comprising:

inserting a first end of a casing defining a helical passage into a bulk material to be agitated, the casing comprising:

an opening at the first end of the helical passage; and

a valve configured to open and close the opening at the first end of the helical passage,

wherein the valve is open during inserting so as to allow for a collected volume of the bulk material to pass into the helical passage;

closing the valve;

adding a cleaning fluid into the helical passage; and

agitating the casing.

22. The method of claim 21 , wherein agitating comprises moving the casing in a direction substantially parallel to a length of the helical passage.

23. The method of claim 21 , wherein adding a cleaning fluid provides cleaning fluid to the collected volume of bulk material.

24. The method of claim 21 , wherein inserting comprises applying a rotational force to the casing.

25. The method of claim 24 , wherein the rotational force serves to screw the casing into the soil.

26. The method of claim 21 , wherein agitating comprises:

agitating the helical passage in a direction substantially parallel to a length of the helical passage at a first level of agitation; and

agitating the helical passage in a direction substantially parallel to the length of the helical passage at a second level of agitation, wherein the second level of agitation is greater than the first level of agitation.

27. The method of claim 21 , wherein agitating causes water pressure within the collected volume of the bulk material to increase.