Second Quarter/YTD 2023 Results

Rate Filings Summary ($ in millions) Rate Filings Completed* Effective since January 1, 2023 $67 $340 $273 Requested Revenue in Pending Base Rate Proceedings AMERICAN WATER $151 $4 $155 Rate Cases (Includes Step Increases) Infrastructure Charges Total Rate Cases* ** Infrastructure Charges Total * Annualized revenue increase for rates effective since January 1, 2023 ** Excludes revenue already approved through infrastructure mechanisms 36

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