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Mr. Michael Grochala <br />April 8, 2020 <br />Page 3 <br /> <br /> <br />K:\015144-000\Admin\Docs\AUAR - Update 2020\Water Wastewater\MEMO - 040820 - Wastewater.docx <br />Table 2. Projected Average Daily Flow for 2020 Scenario 1 <br />Land Use Type Area <br />(acres) <br />Density <br />(units/acre) <br />Flow <br />Assumption <br />(gpd/acre) <br />Average <br />Flow <br />(gpd) <br />Low Density Sewered Residential 282.6 2.3 414 117,002 <br />Low Density Mixed Residential 376.9 3.5 630 237,447 <br />Medium Density Residential 180.5** 5.0 900 162,432 <br />High Density Residential 39.0 7.0 1,260 49,160 <br />Planned Residential / Commercial* 89.9 9.0 1,210 108,836 <br />Office Residential* 139.5 5.0 850 118,567 <br />Mixed Use 0.0 2.3 414 0 <br />Commercial 348.9** N/A 800 279,126 <br />Business Campus*** 624.0 N/A 800 799,182 <br />Industrial 472.4** N/A 800 377,947 <br />Civic/Institutional 1.0 N/A 600 620 <br />Urban Reserve 0.0 N/A N/A N/A <br />Permanent Rural 358.1 N/A N/A N/A <br />Park & Open Space 837.5 N/A N/A N/A <br />Right-of-Way 3.7 N/A N/A N/A <br />Total 3,754.1 N/A N/A 2,250,319 <br />*Assumes 50% residential and 50% commercial development. <br />**Areas for properties within the southern portion of the study area that are already sewered have been <br />removed. <br />***Includes contingency for higher intensity wastewater flow. <br /> <br />Table 3 summarizes the projected wastewater flow by MCES connection point under Scenario 1. <br />Note that the flows listed in Table 3 include only additional flows generated within the study area. <br /> <br />Table 3. Projected Additional Regional Wastewater Flow by MCES Connection Point for <br />2020 Scenario 1 <br />MCES <br />Interceptor <br />City Sanitary <br />Sewer District <br />Average <br />Flow (MGD) <br />Peak Hourly <br />Flow (MGD) <br />7651 3 0.62 2.11 <br />802325 5 1.63 4.73 <br /> <br />Table 4 summarizes the projected wastewater characteristics and additional loading for the <br />wastewater that will be generated under Scenario 1. <br /> <br />Table 4. Projected Wastewater Characteristics and Additional Total Average Daily <br />Wastewater Loading for 2020 Scenario 1 <br />Parameter Concentration <br />(mg/L) <br />Average Load <br />(lbs/day) <br />Biochemical Oxygen Demand 220 4,131 <br />Total Suspended Solids 220 4,131 <br />Ammonia –Nitrogen 25 469 <br />Total Phosphorous 8 150