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Executive Summary Wastewater Capacity Charges Study Wastewater capacity charges based on the City's current and recommended unit costs of capacity are shown in the table below. Flow and BOD/SS strength from residential connections is considered uniform among all connections in two categories - Single Family and Multiple Family. Current Flow assignments for each category are changed to reflect reduction in indoor water use. Current BOD/SS strength assignments for each category are increased in inverse proportion to indoor water use so that there is no change in the mass of BOD/SS discharge to the sewer. Flow and BOD/SS strength from individual nonresidential connections vary among a wide range. Flows shown for nonresidential connections are provided only to facilitate comparison of capacity charges for different nonresidential loadings. ES -2 I IHP1'I VIs" c4 nlu n1, cin this -h el 'i "IIhju l Nj; l hc I11111G9lIons LIcuff ,I al the c nd c4 his flc AIII =,�i^dt (gal./day) Flow (milligrams/liter) BOD SS Current FY20 Difference Dollars Percent Unit Costs of Capacity Flow, $/gallons per day $20.51 $22.02 $1.51 7.4% BOD, $/pounds per day $838.61 $938.00 $99.39 11.9% SS, $/pounds per day $961.17 $993.00 $31.83 3.3% Residential Capacity Charges Single Family current> 189 195 195 $4,389 $3,920 -$469 -10.7% FY20> 145 300 320 Multiple Family current> 158 193 193 $3,664 $3,270 -$394 -10.8% FY20> 121 300 320 Nonresidential Capacity Charges High Strength 3,000 1,000 600 $96,940 $104,440 $7,500 7.7% Medium Strength 3,000 500 600 $86,450 $92,700 $6,250 7.2% Low Strength 145 300 320 $3,650 $3,920 $270 7.4% ES -2 I IHP1'I VIs" c4 nlu n1, cin this -h el 'i "IIhju l Nj; l hc I11111G9lIons LIcuff ,I al the c nd c4 his flc AIII =,�i^dt