⟁ Illinois Well Data field records · 2026 survey

How to Determine Well Depth on a Property

To determine the well depth on your property in Illinois, you can start by examining the well records provided by the Illinois State Geological Survey or contacting your local county health department for well information. Additionally, if you have access to the well, you can measure the depth directly using a weighted tape measure.

Check Well Records

The first step in finding out the depth of a well is to check the official well records. In Illinois, well records are maintained by the Illinois State Geological Survey. These records often include details such as the well depth, static water level, and yield. You can request these records online or visit the local county office that handles well permits and records.

Contact Local Authorities

If the records are not available online, contacting your local county health department can be a useful step. They maintain records of wells, especially if the well was drilled after regulations requiring documentation were put in place. They can provide information on well depth and other important data.

Measure the Well Depth Directly

If you have physical access to the well, you can measure its depth directly. This involves using a weighted tape measure. Here’s how you can do it:

Understanding the Driller's Log

If you have access to the driller's log, it can provide valuable insights into the well's construction. The driller's log includes details about the depth of the well, the materials encountered during drilling, static water level, and the yield. This document is usually provided by the drilling company at the time of well installation.

Consider the Costs of Drilling

If you're considering drilling a new well or need to deepen an existing one, understanding the costs involved is crucial. Drilling costs can vary based on factors such as the depth of the well, the geological conditions, and the materials needed. It’s advisable to get quotes from several licensed well drilling contractors in your area to understand the potential costs.

Research Before Buying Rural Property

Before purchasing rural property in Illinois, researching the existing well is essential. Ensure that you have access to all available well records and understand the water quality and quantity. This research can help you avoid potential issues related to water supply and quality.

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