Sampling device

A method for delivering a fluid to a subsurface which comprises the steps of:

• (a) providing a device having an outer tube with opposed ends with a center bore extending between the ends and with at least one opening adjacent the second end extending into the center bore and having an inner rod with opposed ends with a handle at one end and configured to be telescopingly inserted into the center bore of the outer tube;
• (b) inserting the inner rod into the center bore of the outer tube such that the inner rod closes the opening;
• (c) inserting the device into the subsurface to a desired depth;
• (d) completely removing the inner rod from the center bore of the outer tube;
• (e) providing a means for inserting the fluid into the center bore of the device;
• and
• (f) inserting the fluid into the center bore of the device such that the fluid exits the device through the opening and enters the subsurface adjacent the opening.

A method for removing a fluid sample from a subsurface which comprises the steps of:

• (a) providing a sampling device having an outer tube with opposed ends with a center bore extending between the ends and with at least one opening adjacent the second end extending into the center bore and having an inner rod with opposed ends with a handle at one end and configured to be telescopingly inserted into the center bore of the outer tube;
• (b) inserting the inner rod into the center bore of the outer tube such that the inner rod closes the opening;
• (c) inserting the sampling device into the subsurface to a desired depth;
• (d) completely removing the inner rod from the center bore of the outer tube such that fluid in the subsurface adjacent the opening is able to move into the center bore of the outer tube;
• (e) providing a means for removing the fluid sample from the fluid in the center bore of the outer tube;
• and
• (f) removing the fluid sample from the fluid in the center bore of the outer tube.

A device for determining hydrostatic pressure of groundwater in a subsurface under a surface water body, which comprises:

• (a) an outer tube having an open first end and a closed second end with a center bore extending therebetween defining a longitudinal axis of the device and having at least one opening adjacent the second end;
• (b) an inner rod having a first end and a second end with a handle mounted adjacent the first end and configured to be telescopingly inserted into the center bore of the outer tube;
• and
• (c) a measuring tube having a first end and a second end and configured to be connected at the first end to the first end of the outer tube and having a length such that when the second end of the measuring tube is spaced apart from the surface water body in a direction opposite the second end of the outer tube, a portion of the measuring tube between the ends is positioned in the surface water body, wherein to determine the hydrostatic pressure of the groundwater in the subsurface, the inner rod is inserted into the center bore of the outer tube such that the inner rod closes the opening at the second end of the outer tube and the device is inserted into the subsurface with the second end of the outer tube entering the subsurface first, wherein when the device is at a desired depth in the subsurface, the inner rod from the outer tube is removed which opens the opening and allows fluid to move into the center bore of the outer tube and the measuring tube is connected to the first end of the outer tube and positioned such that the second end of the measuring tube is spaced apart from the surface water body in a direction opposite the second end of the outer tube and the portion of the tube between the ends is positioned in the surface water body wherein the hydrostatic pressure is determined by a water level in the measuring tube.

A method for measuring hydrostatic pressure of groundwater in a subsurface under a surface water body, which comprises the steps of:

• (a) providing a device having an outer tube with opposed ends with a center bore extending between the ends and with at least one opening adjacent the second end extending into the center bore and having an inner rod with opposed ends with a handle at one end and configured to be telescopingly inserted into the center bore of the outer tube and a measuring tube having a first end and second end and configured to be connected at the first end to one end of the outer tube;
• (b) inserting the inner rod into the center bore of the outer tube such that the inner rod closes the opening adjacent the second end of the tube;
• (c) inserting the device into the subsurface to a desired depth;
• (d) removing the inner rod from the outer tube of the device such that the opening is opened;
• (e) connecting the first end of the measuring tube to the end of the outer tube;
• (f) positioning the measuring tube such that the second end of the tube is spaced apart from the surface water body and a portion of the measuring tube between the ends is positioned in the surface water body;
• (g) providing a means for drawing the groundwater from the subsurface in the center bore of the outer tube into the measuring tube;
• (h) connecting the means for drawing the groundwater to the second end of the measuring tube and drawing groundwater from the center bore to the second end of the measuring tube;
• (i) disconnecting the means for drawing the groundwater from the second end of the measuring tube;
• and
• (j) measuring a water level in the measuring tube to determine the hydrostatic pressure of the groundwater in the subsurface relative to the surface water body.