Investor Presentaiton

Rate Base Calculation* ($ in millions) $10.7 $11.7 $12.5 $13.7 $14.4 Estimated Rate Base* Net Utility Plant As of 6/30/2020 $19.3 Less Advances for Construction $0.3 CIAC - Contributions in Aid of Construction $1.4 Net Deferred income taxes $3.3 $4.9 $14.4 As of 12/31/2016 As of 12/31/2017 As of 12/31/2018 As of 12/31/2019 As of 6/30/2020 Total Estimated Rate Base *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 **Anchored off of 2018 rate base AMERICAN WATER مممم ≈7-8%** | Expected Rate base CAGR through 2024 39

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