How to find a water well contractor
To help you find a water well contractor, Wellowner.org has developed Contractor Lookup. Simply enter your location to find contractors that service your area. In addition, we have coded contractors with the following designations: Read more...
State guidance on water testing
Resources include licensing agencies for geologists, engineers, and contractors, guidance for engaging an environmental or groundwater consultant and more. Read more...
Find a state-certified drinking water testing lab
To find a certified lab, click on your state or territory from this helpful map. Read more...

The quality of your water is important. Knowing the basics about water testing and treatment can help you diagnose and address water quality issues-whether they be matters of taste, odor, or appearance, or health risks.

Click on the topics below to learn the basics about water quality.