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Water Table Depth Determination

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Water Table Graphic

The water table depth can be easily determined by digging a representative hole with a shovel or an auger. Make sure that the area and elevation of the hole is representative of the entire field. Dig until water starts entering the hole, or to a maximum depth of 4 feet. Allow the hole to settle, and observe if water fills the hole within 1 hour. The level that water began to enter the hole, or the level to which it fills it, is the water table level. Make note of this depth. Multiple holes may be dug for greater accuracy. Fill the hole back in with the same soil immediately after use. Instead of digging a hole, you may use a nearby ditch or other natural feature that is representative of the water table.

 

Consult with WCD or DOE prior to digging a hole to inspect water table depth. You must follow the guidelines outlined in your DNMP on proper safety and method protocols to avoid a resource pollution event.



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