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Mr. Michael Grochala April 8, 2020 Page 3 K:\015144-000\Admin\Docs\AUAR - Update 2020\Water Wastewater\MEMO - 040820 - Water.docx 2020 Scenario 1 The projected water demands within the study area for 2020 Scenario 1 are shown in Table 1. There are a number of properties within the southern portion of the study area that already receive municipal water, so these areas have been removed from the areas listed in Table 1. Table 1. Projected Water Demand for 2020 Scenario 1 Land Use Type Area (acres) Density (units/acre) Demand Assumption (gpd/acre) * Average Day Demand (gpd) Max Day Demand (gpd) Low Density Sewered Residential 282.6 2.3 449 126,752 354,906 Low Density Mixed Residential 376.9 3.5 683 257,234 720,257 Medium Density Residential 180.5*** 5.0 975 175,968 492,710 High Density Residential 39.0 7.0 1,365 53,257 149,119 Planned Residential / Commercial** 89.9 9.0 1,378 123,902 346,926 Office Residential** 139.5 5.0 988 137,747 385,692 Mixed Use 0.0 2.3 449 0 0 Commercial 348.9*** N/A 1,000 348,907 976,940 Business Campus**** 624.0 N/A 1,000 623,978 2,047,138 Industrial 472.4*** N/A 1,000 472,434 1,322,815 Civic/Institutional 1.0 N/A 750 775 2,169 Urban Reserve 0.0 N/A N/A N/A N/A Permanent Rural 358.1 N/A N/A N/A N/A Park & Open Space 837.5 N/A N/A N/A N/A Right-of-Way 3.7 N/A N/A N/A N/A Total 3,754.1 N/A N/A 2,320,954 6,798,672 *Based on residential per capita water use of 62.5 gallons per capita per day (historical average from 2014-2018) and 3.12 persons per household (projected 2020 household size per Comp Plan). **Assumes 50% residential and 50% commercial development. ***Areas for properties within the southern portion of the study area that already receive municipal water have been removed. ****Includes contingency for higher intensity max day water demands.