Groundwater Contamination Notification: What You Need to Know
Find out about groundwater contamination cases in your area and notifications from TCEQ.
On this page:
- If You Received Notification
- What You Can Do
- Groundwater Contamination Cases
- Contact Us
- More Information
- Rules and Statutes
If You Received Notification
You may have received a notification if your address is within one mile of a groundwater contamination site. Based on sampling data, TCEQ does not suspect that your drinking water is affected by this contamination.
If you are a private water well owner and receive notification, you may contact us with additional questions. See Contact Us below.
What You Can Do
In most cases, these notices are only for informational purposes and no additional actions are needed. TCEQ does not regulate private drinking water wells. If you own a private drinking water well, you are responsible for maintaining it and testing your well water.
- Texas Well Owner Network – Offers guides and free or low-cost water testing programs.
Groundwater Contamination Cases
In the address label of the notification you received, you'll find the reference number. In the spreadsheet below, use that number to find the case, contaminants of concern, and the general location of the contamination.
Contact Us
TCEQ Groundwater Notification Team
- gwnotify@tceq.texas.gov
- 512-239-4660
More Information
- Groundwater Conservation Districts (GCDs) – Resources on local GCDs, the state's preferred method for managing groundwater.
- Map of GCDs – A static map of GCDs in Texas.
- Groundwater Conservation Districts Viewer – An interactive map for finding districts and information about them, their location, county, etc.
- Groundwater Contamination Viewer – An interactive map for finding groundwater contamination cases in Texas and details about them.
- Joint Groundwater Monitoring and Contamination Report - Provides the data for the Groundwater Contamination Viewer.
- Texas Groundwater Protection Committee (TGPC) – This interagency group enhances existing groundwater programs and improves coordination between agencies.
Rules and Statutes
- Texas Water Code Section 26.408 - As of September 1, 2025, TCEQ must notify each residential address within one mile of a groundwater contamination site (Senate Bill 1663, 89th Legislature, 2025). Separate notification is required for owners of private drinking water wells that may be affected by groundwater contamination.
- Title 31, Texas Administrative Code, Chapter 601 - TGPC is updating the rules for this new requirement.
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