Do you have a water well, borehole or spring on your property? If so, keeping a detailed well log is essential. This article explains what a well log is and how it can help. These tips will prove invaluable to any homeowner with a water well.

What Is A Well Log?


A well log is a document containing information about a particular residential well, borehole or spring. It contains the history of the well and includes details regarding the nature of the ground surrounding it. Every well should have a well log. The contractor who builds the well is responsible for creating a well log. The original log is filed with the state government. Homeowners who have wells should also keep a copy of the well log. This helps with various issues such as cleaning the well, maintaining it and checking details. When the property on which the well is located changes hands, checking the well will be an essential part of the real estate contraction. Prior to the sale going through, a well contractor will verify the condition of the well and refer to the well log.

What Do Well Logs Contain?

Well logs, sometimes called drilling reports or water well records in some states, all contain the same basic information. All well logs contain a unique well reference number, the owner’s address, the location of the well and the construction and contractor details. This helps anyone who sees the document to verify where the well is located on topographic maps and ascertain who was responsible for drilling it. The log also details physical measurements of the well such as the depth and any geographical formations in close proximity to the well such as the type of rock.

How Can Well Logs Help?

Well logs are not optional. All well owners should keep a copy of the log at all times but the original log will be filed with the state in which the well is located. Logs help when cleaning the well, maintaining the quality of the water and in real estate transactions. Every time a property containing a water well changes hands, the well log should be referred to and verified. For example, a well contractor will need to know how the well was constructed such as the type of casing used in the well and the type of grout used in the construction process. This information is critical, as the contractor must not use any chemicals of techniques that cause damage to this tubular, watertight structure. All relevant details will be listed on the well log.

Where Can I Get More Information?

We hope that this brief article outlines what a well log is, what information it contains and why it is essential to the smooth running of a private water well. If you own a water well and would like more information, contact your local well contractor or visit the website of the National Ground Water Association. Leave us a comment or question below and subscribe to this blog for more useful information.