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• Encourage continued water conservation during the summer months (June- October) • Use Wells 5 and 6 as necessary to meet maximum demand periods • Evaluate approach based on results of second (and future) quarterly test results. Water conservation Staff would implement a broad conservation communications campaign to promote the continued importance of conservation that will use both direct and indirect messaging including press release(s) and media stories, electronic and print newsletters, expanded social media (e.g., existing conservation tips (#TipTuesday), rebate programs, demonstration activities and events, and calls to action/weekly conservation challenge posts), informational fliers/FAQs, and informational signage at City properties that have been converted to low-water-usage landscaping. Maximum demand periods Reinstate the use of Wells 5 and 6 as necessary during the summer season (June- October) to meet maximum demand periods. This would provide the necessary water supply and lessen the flow and pressure requirements through Zone 7 turnouts without significantly impacting distribution reliability. Quarterly evaluation The use of Wells 5 and 6 would require future quarterly PFAS test results to remain below response levels. Should the testing show a result at either of the wells that was at or above the RL, the well(s) would then be removed from service. It's important to note that the US Environmental Protection Agency (EPA) and DDW are currently in the process of formally regulating PFAS by establishing maximum contaminant levels (MCLs). These regulations would replace the current advisory levels and are expected to be established in late 2023/early 2024 and include a compliance window that has yet to be determined. Alternative Approach Alternatively, the City Council could choose to keep Wells 5 and 6 out of service. To ensure that maximum demand periods and system reliability could be met, this approach would require that the City: • Declare a Stage 2 water shortage due to infrastructure limitations associated with the City's groundwater wells not being in operation due to PFAS contamination and pressure limitations associated with Zone 7 turn-outs • Mandate 15 percent reduction in water usage as compared to 2020 • Activate the Stage 2 Water Shortage Rates • Apply excess use penalties if needed Declare water shortage If all City wells are not in operation to supply groundwater to the City's distribution system, all water distributed by the system is supplied through metered connections to Page 4 of 6