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Executive Summary Wastewater Capacity Charges Study <br /> <br />ES-2 <br />DRAFT Use of contents on this sheet is subject to the limitations specified at the end of this document. <br />Wastewater capacity charges based on the City’s current and recommended unit costs of capacity are <br />shown in the table below. Flow and BOD/SS strength from residential connections is considered uniform <br />among all connections in two categories – Single Family and Multiple Family. Current Flow assignments <br />for each category are changed to reflect reduction in indoor water use. Current BOD/SS strength <br />assignments for each category are increased in inverse proportion to indoor water use so that there is no <br />change in the mass of BOD/SS discharge to the sewer. Flow and BOD/SS strength from individual <br />nonresidential connections vary among a wide range. Flows shown for nonresidential connections are <br />provided only to facilitate comparison of capacity charges for different nonresidential loadings. <br /> <br />Table ES-2. Capacity Charges Based on Current and Recommended Unit Costs of Capacity <br /> <br /> <br />(gal./day) (milligrams/liter)Difference <br />Flow BOD SS Current FY20 Dollars Percent <br />Unit Costs of Capacity <br />Flow, $/gallons per day $20.51 $22.02 $1.51 7.4% <br />BOD, $/pounds per day $838.61 $938.00 $99.39 11.9% <br />SS, $/pounds per day $961.17 $993.00 $31.83 3.3% <br />Residential Capacity Charges <br />current >189 195 195 <br />FY20 >145 300 320 <br />current >158 193 193 <br />FY20 >121 300 320 <br />Nonresidential Capacity Charges <br />High Strength 3,000 1,000 600 $96,940 $104,440 $7,500 7.7% <br />Medium Strength 3,000 500 600 $86,450 $92,700 $6,250 7.2% <br />Low Strength 145 300 320 $3,650 $3,920 $270 7.4% <br />Single Family $4,389 $3,920 -$469 -10.7% <br />Multiple Family $3,664 $3,270 -$394 -10.8%