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Mr. Michael Grochala <br />April 8, 2020 <br />Page 3 <br />Table 2. Projected Average Dail Flow for 2020 Scenario 1 <br />Land Use Type <br />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 <br />282.6 <br />2.3 <br />414 <br />117,002 <br />Low Density Mixed Residential <br />376.9 <br />3.5 <br />630 <br />237,447 <br />Medium Density Residential <br />180.5** <br />5.0 <br />900 <br />162,432 <br />High Density Residential <br />39.0 <br />7.0 <br />1,260 <br />49,160 <br />Planned Residential / Commercial* <br />89.9 <br />9.0 <br />1,210 <br />108,836 <br />Office Residential* <br />139.5 <br />5.0 <br />850 <br />118,567 <br />Mixed Use <br />0.0 <br />2.3 <br />414 <br />0 <br />Commercial <br />348.9** <br />N/A <br />800 <br />279,126 <br />Business Campus*** <br />624.0 <br />N/A <br />800 <br />799,182 <br />Industrial <br />472.4** <br />N/A <br />800 <br />377,947 <br />Civic/Institutional <br />1.0 <br />N/A <br />600 <br />620 <br />Urban Reserve <br />0.0 <br />N/A <br />N/A <br />N/A <br />Permanent Rural <br />358.1 <br />N/A <br />N/A <br />N/A <br />Park & Open Space <br />837.5 <br />N/A <br />N/A <br />N/A <br />Right -of -Way <br />3.7 <br />N/A <br />N/A <br />N/A <br />Total <br />3,754.1 <br />N/A <br />N/A <br />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 />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 />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 <br />3 <br />0.62 <br />2.11 <br />802325 <br />5 <br />1.63 <br />4.73 <br />Table 4 summarizes the projected wastewater characteristics and additional loading for the <br />wastewater that will be generated under Scenario 1. <br />Table 4. Projected Wastewater Characteristics and Additional Total Average Daily <br />Wastewater Loading for 2020 Scenario 1 <br />Parameter <br />Concentration <br />(mg/L) <br />Average Load <br />(lbs/day) <br />Biochemical Oxygen Demand <br />220 <br />4,131 <br />Total Suspended Solids <br />220 <br />4,131 <br />Ammonia —Nitrogen <br />25 <br />469 <br />Total Phosphorous <br />8 <br />150 <br />KA015144-000\Admin\DOCSWUAR -Update 2020\Water Wastewater\MEMO - 040820 - Wastewater.docx <br />