Contact the EPA Call Center:
AQS application User Support is provided through the EPA Call Center, operated under contract to the EPA.
The toll free number is 1-866-411-4EPA (4372).
International callers: 1-703-679-1070
Their hours of operation are 6:00am - 9:00pm E.T. (Monday - Friday, excluding Federal holidays).
You may also contact the Call Center via email (EPACALLCENTER@epa.gov) or fax (703-674-1008).
Send an email to the AQS Data Mart team: Privacy and Security Notice
EPA welcomes your comments. 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.
Please help us answer your request by including a correct e-mail address. We receive many messages that we can't respond to because of incorrect email addresses. Also, if you are referring to a specific page within EPA's web site, please include a URL or title for the site. If your browser doesn't support forms, you can e-mail your comment to AQS Data Mart team (email@example.com).
Call the Air Quality System Office (National Air Data Group) or contact one of the team members listed below:
Phone: 919 541-4946
Fax: 919 541-7674
Send Regular or certified mail to:
Research Triangle Park, NC 27711