Water Use & Efficiency Strategic Goals

Investment in Rate Base is the Foundation of Our Growth ($ in billions) ≈7-8%* Rate base CAGR expected through 2025 Estimated Rate Base** $15.2 $15.0 $13.7 $12.5 $11.7 As of 12/31/2017 As of 12/31/2018 As of 12/31/2019 As of 12/31/2020 As of 3/31/2021 Σε As of 3/31/2021 $20.3 Net Utility Plant Less Advances for Construction $0.3 CIAC Contributions in Aid of Construction $1.4 Net Deferred income taxes $3.4 Total Estimated Rate Base AMERICAN WATER *Anchored off 2020 **An approximation of rate base, which includes Net Utility Plant not yet included in rate base pending rate case filings/outcomes. Amounts may not sum due to rounding $5.1 $15.2 33

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