Second Quarter/YTD 2023 Results

2023 EPS Guidance* and Long-Term Targets Affirmed AWK EPS Growth Triangle 7-9% EPS CAGR Target Business Mix 100% Regulated and Regulated-Like Earnings Regulated Acquisitions Military Services 0.2% Group AMERICAN WATER 2023 EPS Guidance Affirming 2023 EPS Guidance Range of $4.72 to $4.82, on a weather-normalized basis Higher revenues from investments in rate base while managing operating costs drives EPS growth Successful regulatory, financing, and operational execution drives confidence in our outlook 1.5-2.5% Long-Term Financial Targets ➤ Attractive, Long-Term Sustainable Shareholder Returns Regulated Investment CAPEX 5-7% *On a weather-normalized basis ●• EPS Growth 7-9% . Dividend Growth 7-9% . ESG Leadership Premium + • Customer Affordability + ➤ Rate Base Growth 8-9% Dividend Payout Ratio 55-60% ➤Debt to Capital <60% 24

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