American Water Names Deborah Degillio Senior Vice President of Its Eastern Division and President of New Jersey American Water and Robert MacLean President of American Water Enterprises

VOORHEES, N.J.–(BUSINESS WIRE)–American Water has named Deborah Degillio senior vice president of its
Eastern Division and president of New
Jersey American Water, effective May 1, 2018. Degillio replaces
Robert MacLean, who was named president of American Water Enterprises,
encompassing the companyÔÇÖs market-based businesses.

ÔÇ£I want to thank and congratulate Deb and Rob on their new well-earned
roles,ÔÇØ said Susan Story, president and CEO of American Water. ÔÇ£These
organizational changes represent our commitment to developing leaders at
American Water and promoting our internal talent.

ÔÇ£Deb did a great job leading our market-based business and we are so
pleased to bring her leadership and expertise to our New Jersey
operations. I am equally pleased to have Rob lead our market-based
business, which is where he started his career at American Water,ÔÇØ said
American WaterÔÇÖs president and chief executive officer Susan Story.

American WaterÔÇÖs chief operating officer Walter Lynch added, ÔÇ£I also
want to thank Rob for leading our Eastern Division and New Jersey
American Water and welcome Deb. She has a strong customer focus and a
deep understanding of our regulated business having started her career
at American Water in our state subsidiaries. I know she will be a great
fit for our teams in New Jersey, New York, Maryland and Virginia.ÔÇØ

Degillio has served as president of American Water Enterprises since
2016 and has more than 20 years of broad experience in the utility and
energy sectors. Prior to her role as president of American Water
Enterprises, Degillio currently served as the vice president and
treasurer for American Water.

Degillio joined American Water in 2007 and previously led teams focused
on financial forecasting and analysis, business planning and process
improvement, and served on American Water EnterprisesÔÇÖ senior management
team as the vice president of Finance. She has also supported the
regulated states of American Water in her past roles as director of
Financial Planning and Analysis and vice president of Finance for the
former Eastern Division.

Prior to joining American Water, Degillio held multiple roles that
included serving the utilities industry through mergers and
acquisitions, marketing plans and projects focused on process change.

Degillio has a Master of Business Administration from the Stephen M.
Ross School of Business at the University of Michigan, and a bachelorÔÇÖs
degree in math/statistics and finance from the University of
Wisconsin-LaCrosse. She lives in New Jersey with her husband and two
children.

MacLean joined American Water in 1999. Prior to his current position, he
served as president of California American Water since 2009 and
president of Hawaii American Water since 2011. MacLean also served as
the director of Field Operations for New Jersey American Water.

Before joining New Jersey American Water, he served in various other
roles within the American Water organization. He worked for American
WaterÔÇÖs market-based business, serving as vice president of Contract
Operations where he was responsible for managing more than 30 large
contract operations and directed approximately 750 employees in both the
United States and Canada.

MacLean co-chairs the board of the National Utilities Diversity Council,
a national nonprofit organization focusing on the growth of diversity in
the utilities industry. He also serves on the board of the Health
Transformation Alliance, an organization representing close to 40 of the
nation's leading corporations dedicated to providing better health care
outcomes for 6 million Americans.

MacLean earned his masterÔÇÖs degree in applied science in civil
engineering from Polytechnique University in Montreal and his bachelorÔÇÖs
degree in chemical engineering from McGill University in Montreal. In
2014, he attended the Stanford Executive Program at the Stanford
Graduate School of Business. He lives in New Jersey with his wife and
two children.

With a history dating back to 1886, American Water is the largest and
most geographically diverse U.S. publicly traded water and wastewater
utility company. The company employs more than 6,900 dedicated
professionals who provide regulated and market-based drinking water,
wastewater and other related services to an estimated 15 million people
in 46 states and Ontario, Canada. American Water provides safe, clean,
affordable and reliable water services to our customers to make sure we
keep their lives flowing. For more information, visit amwater.com
and follow American Water on Twitter,
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and LinkedIn.

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Contacts

American Water
Ed Vallejo, 856-566-4005
Vice President,
Investor Relations
edward.vallejo@amwater.com
or
Maureen
Duffy, 856-309-4546
Vice President, Communications and Federal
Affairs
maureen.duffy@amwater.com