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7.A. - Page 95 <br /> The following table calculates residential sewer rates for fiscal year 2018/19 based on costs <br /> allocated for residential rate recovery divided by the projected number of total sewer billing units. <br /> Table S14: Residential Sewer Rate Calculation <br /> Residential Rate Revenue Recovery 2018/19 $26,108,792 <br /> Residential Billing Units 27,880 <br /> Rate per Dwelling Unit <br /> Annual $936.470 <br /> Monthly $78.039 <br /> Adjusted to account for 99.75%cost recovery $78.235 <br /> Rounded $78.24 <br /> Monthly Residential Sewer Service Charges 2018/19 <br /> Single Family&Multi-Family up to 9 Dwelling Units 100% $78.24 <br /> Multi-Family 10+ Dwelling Units 90% $70.42 <br /> 3.10.4 Non-Residential Rate Derivation <br /> The following table details the rate derivation for non-residential customers based on wastewater <br /> strength for each customer class and underlying unit costs for flow, BOD, and SS. The wastewater <br /> strength assumptions for each class are based on estimates previously published by the SWRCB and <br /> are similar to estimates used by other regional agencies. Strength concentrations for the new Mod- <br /> High Strength customer class are based on the average of the Standard Strength and High Strength <br /> classes. The calculation also accounts for an estimate of wastewater discharge based on 80% of <br /> metered water use for most non-residential customer classes. This adjustment is necessary to <br /> account for the estimated sewer discharge of non-residential customers based on year-round water <br /> use data, which includes some outdoor irrigation. This adjustment also ensures parity with <br /> residential water rates, which are based on an estimate of winter water use and exclude outdoor <br /> irrigation. <br /> B Sewer Utility Finances& Rates 68 <br /> 1+r Water&Sewer Financial Plans&Rate Studies <br />