Second Quarter/YTD 2023 Results

Details of Year-To-Date 2023 EPS 0.07 $2.07 0.79 June YTD 2022 Weather in Q2 2023 Revenue AMERICAN WATER (0.25) (0.12) $2.37 (0.13) (0.04) (0.02) O&M Depreciation * LT Financing ST Debt Financing Other, net June YTD 2023 Investment Growth ~75% of inflationary costs incl. in revenue from recent rate cases *Reflects $(0.11) per share of share count dilution, which also offsets the amount of avoided interest expense. 22

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