Limited availability of new USGS data: starting approximately February 29, 2024, there will be a period when new USGS data will not be accessible on the Water Quality Portal. Data will still be collected but will not be publicly available. This limited availability is expected to last a few weeks.
Recent USGS data will be accessible again upon release of the new Data Profiles, which will be in the WQX 3.0 format. These profiles should be available in March, 2024.

The Water Quality Portal Team welcomes your comments on how we can improve our products. We strive to respond to every comment with an answer or an appropriate referral as quickly as possible. Most comments will be responded to within 10 business days.

For assistance, call 1-800-424-9067 or email to You may also contact your  EPA Regional EPA/ WQX Coordinator.

For assistance, call 1-800-424-9067 or use the form below to email us your question or comment. You may also contact your EPA Regional EPA/ WQX Coordinator.

To use the form, fill in the fields and then click the Send comments button. An email window should appear. If the body of the message is blank, please fill in the information that you added to the form. You should then click send. If you have problems using this form, we suggest that you send us your comments by e-mail to: