Your well depth is the distance from ground level to the solid rock at the very bottom of your well shaft. 

 

To determine your static water level yourself, you'll need

• A small fishing weight
• 200 feet, or more, of a lightweight fishing line or kite string.

If you previously measured the static water level, you can use the same line. Just remove the bobber from the line.

How to Measure

• Lower until you feel slack.
• Mark the line at the top edge of the casing.
• Pull out and measure. This is your well depth - the distance to the bottom of the well shaft.