This webpage is designed to provide information to homeowners on the potential issues regarding water wells located in limestone geology. Homeowners will find information about what limestone geology is, the types of issues that may be present for private water wells drilled in limestone geology, and types of potential pollution sources. Homeowners will be introduced to the term "karst" and features associated with karst areas. The Loudoun County Health Department has also provided a list of best practices for private water well owners, some frequently asked questions about living in limestone geology, and links to additional sites that have more information.

3-D Image of Limestone Geology (Courtesy British Columbia, Canada)

Follow the links below for more information.

• What is Limestone Geology, and What is “Karst”?
• Are you Located within the Limestone Geology Area?
• Issues Specific to Water Wells Located in Limestone Geology
• Types of Pollution that can Influence Limestone Geology Water Wells
• Best Practices for Private Water Wells
• Frequently Asked Questions about Limestone Geology & Private Water Wells
• Links to More Information on Limestone Geology & Private Water Wells