⟁ Illinois Well Data field records · 2026 survey

How to Check Static Water Level in a Well

To check the static water level in a well, you will need a few basic tools: a measuring tape or a marked string, a weight, and a flashlight. The static water level is the distance from the ground surface to the water surface when the well is not being pumped. It is an essential measurement for understanding your well's health and capacity.

Step-by-Step Guide to Measure Static Water Level

1. Gather Your Tools

Before you begin, make sure you have the following items:

2. Prepare the Measuring Device

Attach the weight securely to the end of the measuring tape or string. This weight will help the tape or string sink straight down into the well.

3. Access the Well

Remove the well cap or access cover carefully. Use the flashlight to look inside and ensure there are no obstructions. Be cautious of any electrical wiring or other components.

4. Lower the Measuring Device

Slowly lower the weighted tape or string into the well. You will feel a noticeable reduction in tension when the weight hits the water surface. Make sure the tape or string remains as vertical as possible to ensure an accurate measurement.

5. Measure the Water Level

Once the weight touches the water surface, mark the point on the tape or string where it aligns with the top of the well casing. Carefully pull the device back up and measure the length from the weight to the mark. This distance is the static water level.

6. Record Your Findings

Write down the static water level measurement. Regularly recording this data can help you track changes in your well's water level over time, which is crucial for maintaining a reliable water supply.

Why Static Water Level Matters

The static water level is a critical indicator of your well's condition. A significant drop in the static water level could mean overuse, a leak, or a reduction in the aquifer's capacity. Monitoring this level helps ensure your well continues to provide sufficient water.

Tips for Well Owners

For those considering purchasing rural property in Illinois, understanding the static water level of a prospective property's well can provide insights into the long-term viability of the water supply. It's advisable to include well inspection as part of your property assessment.

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