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United States Environmental Protection Agency
Ground Water & Drinking Water
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Contact Us

Woman looking for answers on a laptop1. Search Our Question/Answer Database

Find an answer or ask a question about drinking water and ground water programs authorized under the Safe Drinking Water Act.

2. Ask Questions, Submit CommentsWoman calling a hotline with a question

Call the Safe Drinking Water Hotline toll free Monday through Friday, 10:00 am to 4:00 pm eastern time (except Federal holidays) at 1-800-426-4791 to answer your questions, or submit comments about local drinking water quality; drinking water standards; public drinking water systems; source water protection; large capacity residential septic systems; commercial and industrial septic systems; injection wells; and drainage wells. Local calls or International calls at (703) 412-3330.

3. Technical Problems On Our Web Site?

If you want to report a broken link, or you are experiencing technical problems with OGWDW's web site like downloading files, please contact the webmaster.

4. Contact the Office of Ground Water and Drinking Water

    Mailing address: 
    Office of Ground Water and Drinking Water (4601)
    Ariel Rios Building
    1200 Pennsylvania Avenue, NW
    Washington, DC 20460-0003

    Phone and Fax:
    Phone:  202-564-3750
    Fax:  202-564-3753

Addresses for EPA staff take the form of


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