Contact Us

Easy Access to Online Tasks


Business Hours: 7 a.m. - 7 p.m. M-F
Self service options 24/7
Report an Emergency – 24/7

TDD: 711
Reference 1-866-430-0820

amwater call center

Experience shorter wait times from Tuesday to Friday between 11:00 a.m and 4:00 p.m.
Longer wait times can be expected on Monday's, the first business day of the month, and the first business day after a holiday

Missouri American Water
P.O. Box 6029
Carol Stream, IL 60197-6029

Please send written correspondence to PO Box 578, Alton IL, 62002-0578. Be sure to include your name, account number, service address, mailing address and phone number including area code. Please do not send correspondence with your payment, as it may delay processing your payment and correspondence.

Online Form
Customer Service Request

Please note that the response time is 2-3 days. If your request is regarding a water emergency or related to water quality, please contact our customer service center directly.

Career Opportunities
Browse our available openings.

Investor Relations
Visit our Investor Relations website

Economic Development
For more information, please contact:

Human Resources

Government Relations
For more information, please contact:
Ken Franklin
Government Relations Manager
Office: (314) 996-2320

Christine Page
Government Affairs Director
Office: 1-314-996-2360

Media and Press Inquiries

Email the President
Do you have a question or comment for our company president, Deborah Dewey? Send her an email at Please allow 1-2 business days for a response. If you have a question or concern that needs immediate attention, please call us at 1-866-430-0820.